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Journal articles on the topic 'Baffle element'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Li, Caoyang, and David Herrin. "Application of Microperforated Panel Parallel Baffle Silencers in Ducts." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 269, no. 1 (2024): 1333–42. http://dx.doi.org/10.3397/nc_2024_0175.

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Microperforated panel (MPP) baffle sound absorbers are analogous to glass fiber parallel baffles frequently used in building air moving equipment or large exhaust systems. The MPP baffles in this study consists of two microperforated panels with honeycomb sandwiched between them. The MPP baffles are tested by positioning them in a duct and measuring the insertion loss where insertion loss is defined as the difference in outlet sound power without and with the baffled treatment. It is demonstrated that the insertion loss of the MPP baffle treatments is superior to single MPP sheets positioned i

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2

Yao, Yanping, and Xiangyu Gu. "Research On Discharge Plate Of Plough Tripper Based On Discrete Element." Journal of Physics: Conference Series 2665, no. 1 (2023): 012008. http://dx.doi.org/10.1088/1742-6596/2665/1/012008.

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Abstract The plough discharger is the key device of the belt conveyor, which targets the wear problem of the baffle. In this paper, the coal particle model is established by EDEM, the normal cumulative contact energy and tangential cumulative contact energy of discharge baffles with radius of 1.6m, 2.5m, 4.5m and 8m are obtained, as well as the average velocity of coal particles contacting discharge baffles with different curvature radii, and the wear of the baffle with different curvature under the same working conditions are studied. The optimal radius of curvature was selected through analy

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3

Strelnikova, E., D. Kriutchenko, V. Gnitko, and A. Tonkonozhenko. "Liquid Vibrations in Cylindrical Tanks with and Without Baffles Under Lateral and Longitudinal Excitations." International Journal of Applied Mechanics and Engineering 25, no. 3 (2020): 117–32. http://dx.doi.org/10.2478/ijame-2020-0038.

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AbstractThe paper is devoted to issues of estimating free surface elevations in rigid cylindrical fluid-filled tanks under external loadings. The possibility of baffles installation is provided. The liquid vibrations caused by lateral and longitudinal harmonic loadings are under consideration. Free, forced and parametrical vibrations are examined. Modes of the free liquid vibrations are considered as basic functions for the analysis of forced and parametric vibrations. The modes of the free liquid vibrations in baffled and un-baffled cylindrical tanks are received by using single-domain and mu

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4

Law, Raymond Pak Hei, Clarence Edward Choi, and Charles Wang Wai Ng. "Discrete-element investigation of influence of granular debris flow baffles on rigid barrier impact." Canadian Geotechnical Journal 53, no. 1 (2016): 179–85. http://dx.doi.org/10.1139/cgj-2014-0394.

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Granular debris flow baffles are commonly installed in front of rigid barriers to dissipate flow energy and reduce the required barrier impact capacity. Despite the engineering value of baffles, their influence on rigid barrier impact is still not well understood. A previously calibrated discrete element method (DEM) model using a series of flume experiments was adopted to study the effectiveness of installing baffles in front of a rigid barrier. Froude scaling was used to characterize the flow front. Different baffle configurations were examined, namely number of rows, spacing between success

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5

Liu, Bing. "Structural optimization of baffle internals for fast particle pyrolysis in a downer reactor using the discrete element method." Clean Energy 5, no. 2 (2021): 167–79. http://dx.doi.org/10.1093/ce/zkaa032.

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Abstract The structural optimization of baffle internals for fast pyrolysis of coal with particulate mixing and heat transfer in a downer reactor using the discrete element method (DEM) has been investigated in this research. The pyrolysis terminal temperature at the exit of the downer reactor is not only decided by the volume-feeding-rate ratio of the coal to the sand, but also is affected by the inner structural design of the baffle internals in the downer reactor. As presented in the previous publication of the author, the inhibition from the baffle internals in a downer reactor can improve

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6

Zhang, Jianwei, Anqi Wang, Peng Chen, Jian Liu, and Deqing Yang. "Numerical Study on the Anti-Sloshing Effect of Horizontal Baffles in a Cargo Hold Loaded with Liquefied Cargo." Journal of Marine Science and Engineering 12, no. 7 (2024): 1234. http://dx.doi.org/10.3390/jmse12071234.

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Sloshing of liquefied bulk granular cargoes weakens the stability of cargo carriers when at sea. Using the horizontal rectangle baffle is a promising way to restrain its sloshing motion. But the location height and optimal baffle area rate to achieve a better anti-sloshing effect should be studied first. The discrete element method was adopted to establish the simulation model, and the direct shear test was used for verification. Through the static tilt tests, the definite relationship between the effects of moisture content on cargo motion and particle friction coefficients was acquired. Then

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7

Yaseen, Duna, and Muneer Ismael. "Effect of Deformable Baffle on the Mixed Convection of Non-Newtonian Fluids in a Channel-Cavity." Basrah journal for engineering science 20, no. 2 (2020): 18–26. http://dx.doi.org/10.33971/bjes.20.2.3.

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A simulation of fluid-structure interaction (FSI) and combined convective heat exchange is accomplished in an open trapezoidal cavity-channel. A non-Newtonian (power law fluid) is inspected within the laminar region. The heat source is simulated by an isothermal hot cavity bottom wall, whereas all the rest solid walls are perfectly insulated. A deformable baffle is fixed at the top wall of the channel and its free end extends towards the open cavity. The location of the deformable baffle on the top wall is varied. The baffle position is investigated together with Richardson number (Ri = 0.01-1

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8

Yu, Liting, Mi-An Xue, and Aimeng Zhu. "Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle." Journal of Marine Science and Engineering 8, no. 9 (2020): 671. http://dx.doi.org/10.3390/jmse8090671.

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Violent sloshing induced by excitation with large amplitudes or resonant frequencies may result in structural damage of the liquid-tank or even the overturning of the liquid cargo transport system. Therefore, impermeable and permeable vertical baffles were investigated numerically to suppress sloshing. The numerical simulations were based on the finite element method and arbitrary Lagrangian–Eulerian (ALE) method. The numerical model was verified by the available experimental data, numerical results and linear theoretical results. Based on the study of the effects of impermeable baffle height,

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9

Haghani, Ahmad, Mehdi Jahangiri, Rouhollah Yadollahi Farsani, Ayoub Khosravi Farsani, and Jalal Fazilatmanesh. "Transient Fluid-Solid Interaction and Heat Transfer in a Cavity with Elastic Baffles Mounted on the Sidewalls." Mathematical Problems in Engineering 2021 (December 27, 2021): 1–15. http://dx.doi.org/10.1155/2021/8842898.

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Fluid-solid interaction phenomenon study is necessary for the analysis of several engineering systems such as structures and vessels that interact with wind and blood flow, respectively. In this study, the interactions between buoyancy-driven airflow and elastic baffle(s) inside a square enclosure were modeled numerically. While the two sidewalls of the enclosure were insulated, the lower and upper walls were kept at hot and cold temperatures, respectively. The heat transfer rate through the hot wall by calculating the Nusselt number and von Mises stress at the baffles’ root for various config

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10

Dr., Mazhar Hussain. "COMPARISON OF DIFFERENT HYDRODYNAMIC CHARACTERISTICS OF AIR- WATER SYSTEM USING DISSIMILAR MOTIONLESS MIXERS." Sir Syed University Research Journal of Engineering & Technology 11, no. 2 (2022): 6. https://doi.org/10.5281/zenodo.5904979.

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The hydrodynamic characteristics of mixing fluids are always the points to consider in improvement of their mixing quality especially using motionless mixers normally stated as “Static Mixers”. Motionless mixing technique was adopted for Air-Water system with the advantage of negligible power consumption over dynamic mixers. Different hydrodynamic characteristics were experimented using “Baffle Type” static element and were compared to those of already used in recent studies. Dissolved oxygen content, Static mixer geometry (i.e. Baffle, Blade, Wheel, Plate and Needle),

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11

Baghban, Mohammad Hajmohammadian, Seyed Vahid Razavi Tosee, Kiyanets A. Valerievich, Leila Najafi, and Iman Faridmehr. "Seismic Analysis of Baffle-Reinforced Elevated Storage Tank Using Finite Element Method." Buildings 12, no. 5 (2022): 549. http://dx.doi.org/10.3390/buildings12050549.

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The sloshing phenomenon is an important field of fluid dynamics in liquid storage tanks under earthquake excitation. When the sloshing frequency gets close to the liquid tank’s natural frequency, the resulting resonance could lead to instability and even damage to structures, followed by catastrophic economic losses and environmental damages. As passive control devices, baffles are a place for liquid energy dissipation. This study uses annular and horizontal baffles to evaluate the baffles’ relative effectiveness on the elevated storage tanks’ dynamic response. The analysis results are compare

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12

Baghban, Mohammad Hajmohammadian, Seyed Vahid Razavi Tosee, Kiyanets A. Valerievich, Leila Najafi, and Iman Faridmehr. "Seismic Analysis of Baffle-Reinforced Elevated Storage Tank Using Finite Element Method." Buildings 12, no. 5 (2022): 549. http://dx.doi.org/10.3390/buildings12050549.

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The sloshing phenomenon is an important field of fluid dynamics in liquid storage tanks under earthquake excitation. When the sloshing frequency gets close to the liquid tank’s natural frequency, the resulting resonance could lead to instability and even damage to structures, followed by catastrophic economic losses and environmental damages. As passive control devices, baffles are a place for liquid energy dissipation. This study uses annular and horizontal baffles to evaluate the baffles’ relative effectiveness on the elevated storage tanks’ dynamic response. The analysis results are compare

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13

Malik, F. Elmzughi, A. Elhaj Mohammed, and I. Dekam Elhadi. "Shell tube exchanger parametric investigation and performance simulation using ansys." i-manager's Journal on Mechanical Engineering 13, no. 4 (2023): 13. http://dx.doi.org/10.26634/jme.13.4.20072.

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Heat exchangers with shells and tubes are widely employed in the chemical, power generating, and petroleum refining industries. A three-dimensional simulation of a shell and tube heat exchanger with segmental baffles was performed in this paper. The research involves the use of commercial code such as ANSYS CFX, MATLAB, and Solid-Work, which incorporate modeling, meshing, and the use of finite element techniques to produce numerical results. The results have been achieved in transient situations. The purpose of this paper is to optimize and analyse temperature drops, pressure drops in side she

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14

Chang, Ying-Chun, Ho-Chih Cheng, Min-Chie Chiu, and Yuan-Hung Chien. "Shape Optimisation of Multi-Chamber Acoustical Plenums Using BEM, Neural Networks, and GA Method." Archives of Acoustics 41, no. 1 (2016): 43–53. http://dx.doi.org/10.1515/aoa-2016-0004.

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Abstract Research on plenums partitioned with multiple baffles in the industrial field has been exhaustive. Most researchers have explored noise reduction effects based on the transfer matrix method and the boundary element method. However, maximum noise reduction of a plenum within a constrained space, which frequently occurs in engineering problems, has been neglected. Therefore, the optimum design of multi-chamber plenums becomes essential. In this paper, two kinds of multi-chamber plenums (Case I: a two-chamber plenum that is partitioned with a centre-opening baffle; Case II: a three-chamb

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15

Choi, C. E., C. W. W. Ng, R. P. H. Law, D. Song, J. S. H. Kwan, and K. K. S. Ho. "Computational investigation of baffle configuration on impedance of channelized debris flow." Canadian Geotechnical Journal 52, no. 2 (2015): 182–97. http://dx.doi.org/10.1139/cgj-2013-0157.

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Channelized debris flows surge downslope in mountainous regions and have large impact forces. Arrays of debris flow baffles are frequently positioned in front of rigid barriers to engage torrents and attenuate flow energy. They are regularly designed on empirical and prescriptive basis because their interaction mechanism is not well understood. Numerical back-analysis of flume experiments using the discrete element method (DEM) is conducted to provide insight on flow interaction with an array of baffles. Varying configurations of baffle height, a second staggered row, and spacing between succe

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16

Demir, Abdullah, and Ali Ersin Dinçer. "Numerical investigation of sloshing with baffles having different elasticities." Challenge Journal of Structural Mechanics 6, no. 4 (2020): 176. http://dx.doi.org/10.20528/cjsmec.2020.04.002.

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Liquid tanks are indispensable members of civil engineering structures like liquid petroleum gas storage tanks and aerospace structures. Fluids can act unpredictably under earthquake excitation or dynamic loads. Loads applied to tank changes during motion and there can be deformations at the tank or even at the structure where the tank is placed. This is called sloshing and many researchers study the behavior of it. In this research, behavior of baffles having different elastic modulus is investigated by a fluid-structure interaction (FSI) method. The numerical method is a fully coupled FSI me

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17

Jiang, J. K., and M. G. Prasad. "On the Applications of the Boundary-Element Method to Acoustical Field Studies of Vibrating Structures." Journal of Vibration and Acoustics 108, no. 4 (1986): 454–61. http://dx.doi.org/10.1115/1.3269370.

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This paper describes the applications of the Boundary-Element Method (BEM) for studies on acoustical field of various vibrating structures. The studies emphasize the numerical aspects of the BEM. Both acoustical near and far fields of the vibrating structures are investigated in this work. The vibrating structures considered in this application studies are a circular piston in an infinite, rigid baffle and cantilever-type beams. In the case of piston in an infinite baffle, instead of using the method of images, the free-space Green’s function is used to evaluate boundary integral equation by i

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18

Ben Hamida, Mohamed Bechir. "Fluid-Structure Interaction Analysis in Natural Convection Heat Transfer Inside a T-Shaped Cavity with a Flexible Baffle." Journal of Nanofluids 11, no. 2 (2022): 169–91. http://dx.doi.org/10.1166/jon.2022.1838.

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The purpose of this paper is to investigate the free convection flow through a flexible baffle in a T-shaped enclosure. This study is established in two-dimensional space. The 2D numerical analysis is performed with Comsol Multiphysics on the basis of the finite element method. The effect of all parameters influencing the convection heat transfer and the deformation baffle are rigorously studied. Results obtained show that the convection heat transfer and the warp baffle deformation are improved by increasing the Rayleigh and Prandtl numbers. By cons, the convection heat transfer is reduced by

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19

Qie, Yan Hui, Bo Liu, Xiu Hong Wang, Hai Peng Jia, and Jian Peng Li. "Study on Topology Optimum Design of Baffle of Scraper Conveyer." Advanced Materials Research 228-229 (April 2011): 96–100. http://dx.doi.org/10.4028/www.scientific.net/amr.228-229.96.

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At present the study on the application of the topology optimum design in scraper conveyor is still under development. In this paper the topology optimization based on the homogenization method is applied to the design of the baffle on the scraper conveyer, which can provide a valuable conceptual design scheme for the selection of the baffle pattern. In conjunction with the homogenization theory and Finite Element Method (FEA), the mathematical models for designing the baffle by the minimizing mean compliance are developed in this paper. By applying the topology optimum design to the baffle, t

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20

SHAW, RICHARD PAUL, PAUL VAN SLOOTEN, and MATTHEW NOBILE. "OPTIMAL SOURCE LOCATIONS FOR VARIOUS GEOMETRIES FOR ACOUSTIC REFLECTORS BY BOUNDARY ELEMENT METHODS." Journal of Computational Acoustics 02, no. 04 (1994): 423–39. http://dx.doi.org/10.1142/s0218396x94000245.

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A boundary element method (BEM) approach is used to solve the acoustic problem of a point source within an enclosure with a large opening to an infinite (without a baffle) or semi-infinite (with a baffle) acoustic space. Emphasis is placed on 2D models with the source located along the center line of three types of geometries: a wedge, a parabola, and a rectangular enclosure.

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21

Farhan Lafta Rashid, Emad Qasem Hussein, Mudhar A. Al-Obaidi, and Awesar A. Hussain. "Numerical Simulation of a Partly Filled Rectangular Tank with Fuel Oil." Journal of Techniques 5, no. 3 (2023): 42–51. http://dx.doi.org/10.51173/jt.v5i3.1465.

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Sloshing refers to a certain kind of fluid movement that changes as it progresses. It possesses properties that are both nonlinear and exceedingly unpredictable, and these properties affect the tank wall. This effect may lead to structural wear, which in turn can cause the tank to fail. Benzene and gasoil liquids are used to test the effect of sloshing liquid and accompanying pressure on the wall tank caused by the baffles in partially full fluid tanks. To attain this, modeling of the interaction between fluid and structure is justified using the finite element analysis while the ANSYS Fluent

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22

Zhang, Enhui, Wenyan Zhu, and Lihe Wang. "Influencing analysis of different baffle factors on oil liquid sloshing in automobile fuel tank." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234, no. 13 (2020): 3180–93. http://dx.doi.org/10.1177/0954407020919584.

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Oil liquid sloshing is a common phenomenon in automobile fuel tank under variable working conditions. Installing baffles in automobile fuel tank is the most effective way to suppress adverse influence caused by oil liquid sloshing. Different types of three-dimensional finite element models filling oil liquid are created, meshed, and simulated. The reliability of simulation results is verified by test. The concept of time–area value is proposed in this work. In order to explore the influence of different baffle factors on oil liquid sloshing, six factors are studied. Six kinds of influencing fa

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23

K, Shajahan. "Finite Element Analysis and Experimental Validation of Carbon Fiber-Reinforced Nitrile Rubber Composite Mount Baffles for Vibration Isolation Applications." International Journal for Research in Applied Science and Engineering Technology 13, no. 6 (2025): 1691–97. https://doi.org/10.22214/ijraset.2025.72480.

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On-board machinery in marine vessels such as ships and submarines generates vibrations that can degrade equipment longevity, interfere with communication systems, and compromise stealth capabilities. Among various mitigation techniques, passive anti-vibration mount baffles are widely employed for their effectiveness in isolating vibrations above specified frequencies. This study presents a comprehensive finite element (FE) analysis and experimental validation of nitrile rubber (NBR)-based composite mount baffles reinforced with varying percentages of carbon fiber (5–25%). The composite design

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24

Mikula, V. A., G. E. Maslennikov, and T. F. Bogatova. "Design Optimization of a Helical Coil Gas Cooler Based on the Results of CFD Modeling of Erosion Wear." Journal of Physics: Conference Series 2150, no. 1 (2022): 012017. http://dx.doi.org/10.1088/1742-6596/2150/1/012017.

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Abstract Simulation of erosion wear and design optimization have been performed for a convective gas cooler with a helical coil. Based on the results of simulation of the standard gas cooler design with a flat baffle used in Shell gasification-based combined cycle unit, it is concluded that the particle impact angle is the main factor determining the erosion maximum. To reduce erosion, it is necessary to install a structural element instead of the flat baffle to align the flow path of ash particles at the inlet to the gas cooler. The results of simulation for various baffle shapes show that a

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25

Qi, Kai, Hao Sun, and Fa Lin. "Finite element simulation of modal and linearized stress characteristics of key components of heat exchanger." Vibroengineering Procedia 57 (December 12, 2024): 112–18. https://doi.org/10.21595/vp.2024.24579.

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In order to ensure higher structural stability and load safety of the heat exchanger, modal analysis of the folded flow plate assembly was carried out based on the finite element simulation method. In extreme conditions, the stress linearization and evaluation of the tube plate structure were achieved. The models of spiral baffle and traditional single arch baffle components were established, and the first 20 nature frequencies and the first six modal shapes were compared and analyzed. The strength of the tube plate structure was analyzed under the conditions of separate action of tube side pr

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26

Al-Farhany, Khaled, Barik Al-Muhja, Karuppusamy Loganathan, Umadevi Periyasamy, Farhan Ali, and Ioannis E. Sarris. "Analysis of Convection Phenomenon in Enclosure Utilizing Nanofluids with Baffle Effects." Energies 15, no. 18 (2022): 6615. http://dx.doi.org/10.3390/en15186615.

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The behavior of convective heat transfer in an enclosure filled with Cu–water nanofluid with a baffle has been numerically studied using the finite element method. The enclosure’s top and bottom walls were adiabatic, while the other two were maintained at various temperatures. The left hot wall had an effective thickness and a baffle was added to the bottom wall. The influence of different parameters like the nanoparticle’s concentration (ϕ), Rayleigh number (Ra), the thermal conductivity ratio of the thick wall (Kr), baffle angle (Ø), and the hot wall thickness (D) on the isotherm and fluid f

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27

Tasinkevych, Yuriy. "Wave Generation by a Finite Baffle Array in Application to Beam-Forming Analysis." Archives of Acoustics 35, no. 4 (2010): 677–86. http://dx.doi.org/10.2478/v10168-010-0051-z.

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AbstractDirectional excitation of sound in an aperiodic finite baffle system is analyzed using a method developed earlier in electrostatics. The solution to the corresponding boundary value problem is obtained in the spatial-frequency domain. The acoustic pressure and normal particle velocity distribution in acoustic media can be easily computed by the inverse Fourier transform from their spatial spectra on the baffle plane. The presented method can be used for linear acoustic phased arrays modeling with finite element size and inter-element interactions taken into account. Some illustrative n

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28

Chirkov, A., V. Kharchenko, and S. Kobelsky. "Assessment of WWER-1000 Core Baffle Form Alteration during Operation." Nuclear and Radiation Safety, no. 3(87) (September 15, 2020): 13–20. http://dx.doi.org/10.32918/nrs.2020.3(87).02.

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The paper illustrates the results of the computer assessment of the form alteration in WWER-1000 core baffle obtained via the solution to the coupled thermoelastoplastic task considering the strains of irradiation growth and creep. In the modeling of the contact conditions, the temperature redistribution is considered due to the incompliance of the coolant flow in the contact zone between the core baffle and in-vessel core barrel with the design conditions. The modern approaches to the modeling of strains of the irradiation growth and irradiation creep in austenite steels are used in the space

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29

Zhao, Zhiwei, Jinqiu Wu, Xiaofei Qi, et al. "Design of a Broadband Cavity Baffle Bender Transducer." Journal of Marine Science and Engineering 10, no. 5 (2022): 680. http://dx.doi.org/10.3390/jmse10050680.

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As low-frequency and broadband acoustic emission capability is beneficial to the detection range and acoustic communication speed of small scale autonomous underwater vehicles (AUV), this type of transducer is required, especially in cases of complex acoustic environments. A broadband bender transducer with cavity baffle that suits small scale AUV is proposed. Rather than additional benders, a passive cavity baffle, which would be capable of providing mutual radiation and a fluid cavity mode, is introduced to a single bender. The bending resonant frequency is reduced by the mutual radiation be

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30

Hussain, Afraz, Aqsa Afzal, and Rashid Mahmood. "Numerical Investigation of Viscous Fluid Flow and Heat Transfer in the Closed Configuration Installed with Baffles." International Journal of Emerging Multidisciplinaries: Mathematics 1, no. 2 (2022): 49–57. http://dx.doi.org/10.54938/ijemdm.2022.01.2.28.

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In this study, the flow and heat transfer of viscous fluid features inside the closed configuration with a heated baffles are investigated. Due to the non-linearity of the model, the numerical approach is adopted to get the solution. Initially, the governing equations were discretized in the 2D domain using the Finite Element Method (FEM). To improve accuracy, a hybrid mesh is built at a coarse level, then the grid refinement level is increased. The baffle gap (B.g) is varied from 0.2 to 0.6 and three Reynolds numbers are chosen for this investigation: . The Grashof number is fixed in all the

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31

Wang, Yazhou, Guoliang Qin, Ximeng Ye, and Zhenzhong Bao. "SEM-based numerical framework for non-Darcy mixed convection in a porous cavity with three adiabatic thin baffles on the hot wall." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 9 (2019): 3366–93. http://dx.doi.org/10.1108/hff-12-2018-0820.

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Purpose The purpose of this paper is to develop a numerical framework based on the accurate spectral element method (SEM) to simulate the mixed convective heat transfer within a porous enclosure with three adiabatic thin baffles of different lengths in nine cases and analyze the effects of several parameters. Design/methodology/approach The authors develop an improved time-splitting method to solve the Darcy–Brinkman–Forchheimer model. No extra assumptions are introduced for the intermediate velocity, and the final velocity field satisfies the incompressible constraint strictly compared with t

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32

Hou, Yong Jun, Pan Fang, and Lian Zeng. "Finite Element Analysis of Dual-Frequency Vibrating Screen." Advanced Materials Research 479-481 (February 2012): 2124–28. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.2124.

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In order to study the stress distribution of dual-frequency vibrating screen and ensure the screen box has sufficient strength and longevity, a finite element model of dual-frequency vibrating screen was built, and the stress, modes and fatigue life of the screen box were analyzed. The results indicate that, the stress concentration appears at the contacting parts between the crossbeam and the stiffener of motor seat, the crossbeam, L-type stiffening plate, baffle of material added and screen box. The middle of crossbeam and the L-type stiffening plate are weaker parts of fatigue, they are eas

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33

Fang, Yingguang, Hao Liu, Lingfeng Guo, and Xiaolong Li. "Model Experiment Exploration of the Kinetic Dissipation Effect on the Slit Dam with Baffles Tilted in the Downstream Direction." Water 14, no. 18 (2022): 2772. http://dx.doi.org/10.3390/w14182772.

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Slit dams can eliminate the risk of particle overload accumulation, which can be safer in controlling debris flow compared with a completely closed dam. In attempting to better use the energy dissipation effect of particle collision and reduce the impact of the dam body, referring to the traditional slit dam, this paper proposed one with tilted baffles in the downstream direction. Discrete element simulation and several flume model experiments were carried out herein to verify the advantages and explore the applicable conditions of this tilted baffle slit dam, in which the particle trapping ef

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34

Liu, Jian, and Xiangzhe Zhu. "Chaotic mixing analysis of a novel single-screw extruder with a perturbation baffle by the finite-time Lyapunov exponent method." Journal of Polymer Engineering 39, no. 3 (2019): 287–99. http://dx.doi.org/10.1515/polyeng-2018-0037.

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Abstract The single-screw extruder with a perturbation baffle is a novel piece of equipment for polymer processing, in which the polymer melts undergo complex chaotic mixing. In this paper, from a new Lagrangian perspective, the fluid transporting mechanism in chaotic flow of the unwound screw channel was analyzed based on the finite element method. Firstly, two-dimensional velocity distributions in the unwound screw channel were calculated based on the mesh superposition technique. Fluid particle evolution processes in the extruder were tracked based on the fourth-order Runge-Kutta scheme. Th

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35

Y. Liu, L. Song, J. Yin, et al. "Numerical Simulation of Stretch Bending for L-section Aluminum Alloy Profile." Electronic Journal of Structural Engineering 18, no. 2 (2018): 67–75. http://dx.doi.org/10.56748/ejse.182652.

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High precision stretch bending of aluminum alloy profile is the key technology for making car’s frame body. A numerical simulation study on the displacement-controlled process for a typical kind of L-section aluminum alloy profile used in high-speed rail with finite element analysis software is presented. The effect of different friction coefficients, with or without baffle and cover plate on the equivalent stress,strain and cross-sectional distortion are investigated. It is shown that the increase of the friction coefficient can increase the cross-sectional distortion, equivalent stress and s

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Peng, Yi, Sheng Zhang, Jiangfeng Wan, et al. "Numerical study of granular flow in a slit funnel with a novel structure to avoid particle clogging." PLOS ONE 18, no. 6 (2023): e0286591. http://dx.doi.org/10.1371/journal.pone.0286591.

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To solve the problem of particle clogging in slit funnels and to obtain a stable discharge flow rate, we proposed a new funnel structure, namely the slit baffle funnel. We conducted a systematic investigation using the discrete element method (DEM) to study the effects of funnel half-angle θ, outlet width W, and baffle height H on flow rate and flow pattern. We found that the proposed structure could effectively avoid particle clogging and guarantee a continuous and stable flow rate with small outlet width. Under the condition of H >3 d, a bigger flow rate was obtained at a smaller funnel h

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Bermúdez, Alfredo, Rodolfo Rodríguez, and Duarte Santamarina. "Finite element computation of sloshing modes in containers with elastic baffle plates." International Journal for Numerical Methods in Engineering 56, no. 3 (2002): 447–67. http://dx.doi.org/10.1002/nme.578.

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Veliev, Fazil. "Study of fiber detachment dynamics from the seeds by the baffle element." EUREKA: Physics and Engineering, no. 5 (September 29, 2023): 122–32. http://dx.doi.org/10.21303/2461-4262.2023.002999.

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The issue of the safety of cotton seeds during the roller ginning process is one of the subjects of research on the dynamic processes of primary processing of raw materials. The study of the work of roller gins first of all showed that the process of roller ginning is based on the interaction of raw cotton, a working roller, a knife, and a breaking organ. This is a component that ensures, at certain interaction, the separation of fiber from the seeds. At the same time, there are probably no physical foundations that could determine the spatial orientation of these four components of the

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Ikpotokin, Igbinosa, and david Adebayo. "Performance Analysis of Sinusoidal Baffles in a Two-Phase Flow Shell and Tube Heat Exchanger." Nile Journal of Engineering and Applied Science 2, no. 2 (2025): 1. https://doi.org/10.5455/njeas.227936.

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The Shell-and-tube heat exchangers (STHE) used in many industries to maintain high thermal efficiency are limited by the incorporated baffles, which cause a relatively large pressure drop, and thus lower overall performance. These limitations and the demand for energy-saving, necessitate the development of new baffles with enhanced performance capabilities. This research aims to examine numerically the impact of Sinusoidal Baffle (SB) amplitude (in the range of 2 mm to 10 mm) and pitch (in the range of and 10 to 50 mm) on the thermal-hydraulic performance of STHE using finite element-based com

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Xiong, Zhen Wei, Xin Ling Liang, Xian Xing Dai, and Ping Wang. "Numerical Analysis of Bridge Expansion-Induced Rail Deformation of Ballast Truck." Applied Mechanics and Materials 580-583 (July 2014): 3208–14. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.3208.

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when the ballast track stretch with the bridge, ballast which is near expansion joint will move confusedly. As a result, rail produced vertical deformation. The deformation will affect the running safety and comfortability of train. At present, there are two kinds of treatments which are cover board structure and baffle structure to deal ballast’s movement. Aiming at the different modes of stretching when the two kinds of structures and different arrangement condition of bridge plate are applied, the rail-sleeper-ballast discrete element model is developed by the method of two-dimensional gran

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Sowa, L. "Numerical Modelling of Fluid Flow and Thermal Phenomena in the Tundish of CSC Machine." Archives of Foundry Engineering 14, no. 1 (2014): 103–6. http://dx.doi.org/10.2478/afe-2014-0023.

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Abstract The mathematical and numerical simulation model of the liquid steel flow in a tundish is presented in this paper. The problem was treated as a complex and solved by the finite element method. The single-strand slab tundish is used to continuous casting slabs. The internal work space of the tundish was modified by the following flow control devices. The first device was a striker pad situated in the pouring tundish zone. The second device was a baffle with three holes and the third device was a baffle without hole. The main purpose of using these devices was to cause a quiet liquid mix

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Xu, Kun, Zhongyou Lu, Li Wang та Yunqing Tang. "Enhancing the Proportion of Sub-5 μm Atomized Droplet Size in Medical Air-Compression Nebulizer". Symmetry 17, № 1 (2024): 6. https://doi.org/10.3390/sym17010006.

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Medical air-compression nebulizers deliver atomized medication to the lungs, providing rapid and painless treatment for respiratory diseases. However, the size of most atomized droplets is around 10 μm, limiting drug deposition in the lower airways and alveoli, with increasing the proportion of sub-5 μm droplets remaining challenging. In this work, finite element analysis was employed to model the effects of gas flow rate, liquid channel width, and broken baffle structure on droplet size distribution, aiming to optimize structure symmetrical parameters and operating conditions. A novel compres

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Elliott, Christopher M., and Gregory D. Buckner. "Design optimization of a novel elastomeric baffle magnetorheological fluid device." Journal of Intelligent Material Systems and Structures 29, no. 19 (2018): 3774–91. http://dx.doi.org/10.1177/1045389x18799211.

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This article details the design optimization of a novel magnetorheological fluid device, which incorporates a rolling elastomeric baffle to contain the fluid and minimize cost and complexity. The application considered here is an electronic joystick for a drive-by-wire construction machine, although designs for other semi-active applications could be similarly optimized. Performance is evaluated computationally and experimentally. A computationally efficient system model is developed and validated using finite element analysis to accurately predict the device’s magnetic flux characteristics. T

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Ren, Jian, C. H. Deng, and Q. Z. Hou. "Vibration and Sound Radiation of Truss Core Panels." Key Engineering Materials 334-335 (March 2007): 969–72. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.969.

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The dynamic response and the sound radiation of truss core panels are investigated in this paper. The spectral element model for the truss core panel is developed. The element model is established by employing shape functions derived directly from the solution of distributed parameter models for each beam element. Forced vibrations of a fluid-loaded beam in a rigid baffle are considered. The spectral formulation can be easily and efficiently coupled with the Fourier transform (FT) based analysis of the structure’s sound radiation in a surrounding acoustic medium. Hence the proposed formulation

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Bourganel, Stéphane, Antonio Galia, Jérémy Hure, Rémy Bonzom, Christophe Domain, and Cécile-Aline Gosmain. "DPA calculation in a stainless steel baffle of Chooz-A PWR using auto-dosimetry measurements." EPJ Web of Conferences 308 (2024): 03008. http://dx.doi.org/10.1051/epjconf/202430803008.

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This paper presents a method dedicated to the calculation of DPA (displacements per atom) in a stainless steel element irradiated inside Chooz-A reactor core. This method is based on experimental results obtained in samples taken from the analyzed stainless steel element, and calculation results. Experimental results consist in the mass of 59Co and the activity of 60Co, both measured in 2018, i.e. 27 years after the final shutdown of Chooz-A reactor. Calculations are carried out with the TRIPOLI-4® 3D Monte Carlo particle transport code, and the DARWIN/PEPIN2 depletion code, with a simplified

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Xiao, Dongping, Ruiyang Xiao, Fan Yang, Cheng Chi, Mingsheng Hua, and Chun Yang. "Simulation research on ONAN transformer winding temperature field based on temperature rise test." Thermal Science, no. 00 (2022): 47. http://dx.doi.org/10.2298/tsci211127047x.

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Studying the ONAN (Oil-Natural-Air-Natural) transformer?s temperature field distribution characteristics and hot spot temperature rise during operation is a key step to evaluate the thermal insulation life of this type of transformer. Firstly, considering the transverse oil passages between the windings and the guiding effect of the oil baffle on the oil flow, this paper takes 35kV ONAN transformer windings as the research object, which establishes the corresponding electromagnetic-thermal-fluid coupling model and uses the finite element method to calculate the overall distribution of the inte

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He, Wenhao, Zhanlong Zhang, Yu Yang, et al. "Risk Assessment Study of Oil Flow Under Inrush Current on the Misoperation of Converter Transformer Gas Relay." Applied Sciences 15, no. 4 (2025): 2235. https://doi.org/10.3390/app15042235.

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In practical engineering, due to the residual magnetism in the iron core of the converter transformer, the inrush current is generated in the case of no-load closing, and the inrush current leads to an oil flow surge inside the converter transformer. Under the influence of oil flow, the gas relay plate will be deflected, and when the deflection angle is too large, the gas relay will malfunction. Because of the lacking research on the influence of the misoperation of the gas relay under the excitation inrush of the converter transformer, it is difficult to effectively suppress the misoperation

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Wang, Tian, Mingxuan Li, Jia Tang, Yuhan Liu, and Wenbo Li. "Study on the structure of the cowl based on optimal water dynamic characteristics." Journal of Physics: Conference Series 2808, no. 1 (2024): 012080. http://dx.doi.org/10.1088/1742-6596/2808/1/012080.

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Abstract Fluid mechanics makes us realize the complexity and variability of the fluid force, so the shape of the fluid contact surface will have a great impact on the energy capture power of the generator set. In this paper, a symmetrical airfoil deflector is designed to improve the energy capture power and the conversion efficiency of the current energy unit under the condition of low flow velocity, and the selection of parameters such as inner diameter, chord length, and angle of attack and their growth effects are analyzed by finite element analysis. The three-dimensional finite element mod

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Cruchaga, Marcela A., Carlos Ferrada, Nicolás Márquez, Sebastián Osses, Mario Storti, and Diego Celentano. "Modeling the sloshing problem in a rectangular tank with submerged incomplete baffles." International Journal of Numerical Methods for Heat & Fluid Flow 26, no. 3/4 (2016): 722–44. http://dx.doi.org/10.1108/hff-08-2015-0315.

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Purpose – The present work is an experimental and numerical study of a sloshing problem including baffle effects. The purpose of this paper is to assess the numerical behavior of a Lagrangian technique to track free surface flows by comparison with experiments, to report experimental data for sloshing at different conditions and to evaluate the effectiveness of baffles in limiting the wave height and the wave propagation. Design/methodology/approach – Finite element simulations performed with a fixed mesh technique able to describe the free surface evolution are contrasted with experimental da

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Zeng, Shan Qi, Da Yong Cheng, and Yi Ding. "Researching the Influence of Carton Stiffness on the Hopper Design of Packaging Machine." Advanced Materials Research 338 (September 2011): 517–20. http://dx.doi.org/10.4028/www.scientific.net/amr.338.517.

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Through studying carton stiffness, the hopper design of packaging machine is improved. By using the elastic-plastic theory and finite element stress analysis method, the hopper baffle design of automatic tea packaging machine is optimized in order to reduce the requirements of equipment for paper, solve the problem that automatic packaging machine stop work. At the same time, the stress analysis of carton is taken through the ANSYS to derive that the suction of sucker satisfy the requirements of carton stiffness or not, the carton appear plastic deformation in the force process or not.

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