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Journal articles on the topic 'Tangential Spray'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Zulkifli Abdul Ghaffar, Salmiah Kasolang, Ahmad Hussein Abdul Hamid, and Zolkapli Eshak. "Experimental Analysis of Tangential-Vane Swirl Atomizer Spray Angle." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 101, no. 2 (2023): 1–7. http://dx.doi.org/10.37934/arfmts.101.2.17.

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A swirl atomizer is a widely applied spray-generating device. The swirling motion of a swirl atomizer is induced either by a tangential inlet or a swirl-generating vane. The swirling effect produces a spray with a wide angle which is important in various applications such as gas cooling, diesel engine combustion, and automatic hand sanitizer. An intense swirling mechanism was reported to significantly affect the spray angle. An attempt was made by combining tangential inlet and swirl-generating vane in a single embodiment to create a more intense swirling effect. The experiment was conducted w

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2

KANKKUNEN, ARI, SANTERI KOIVISTO, KARI SAARI, MIKA JARVINEN, JAMES BIGGS, and ANDREW JONES. "Experiments and visualization of sprays from beer can and turbo liquor nozzles." February 2022 21, no. 2 (2022): 95–106. http://dx.doi.org/10.32964/tj21.2.95.

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Industrial scale swirl-type black liquor nozzles were studied using water as the test fluid. Simple water spraying experiments were found to be very beneficial for studying and comparing nozzles for black liquor spraying. These kinds of experiments are important for finding better nozzle designs. Three nozzle designs were investigated to understand the functional differences between these nozzles. The pres-sure loss of nozzle 1 (“tangential swirl”) and nozzle 3 (“turbo”) were 97% and 38% higher compared to nozzle 2 (“tan-gential swirl”). Spray opening angles were 75°, 60°, and 35° for nozzles

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3

Nasr, G. G., R. A. Sharief, and A. J. Yule. "High Pressure Spray Cooling of a Moving Surface." Journal of Heat Transfer 128, no. 8 (2005): 752–60. http://dx.doi.org/10.1115/1.2217747.

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A novel technique is described for investigating spray cooling of moving hot surfaces. An experimental investigation is described for vertically downwards water sprays impinging on a horizontal steel annulus of 250mm diameter with a surface temperature up to 600°C, and rotating at up to 120rpm, giving a tangential velocity of 1.35ms−1. The central homogeneous zones of sprays from full-cone atomizers are used at pressures up to 2.07MPa and the ranges of impacting spray parameters are 0.98to12.5kgm−2s−1 for mass flux, 49-230μm for volume median drop diameter, and 9.8-32.3ms−1 for impinging veloc

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4

Han, Z., Z. Xu, and N. Trigui. "Spray/wall interaction models for multidimensional engine simulation." International Journal of Engine Research 1, no. 1 (2000): 127–46. http://dx.doi.org/10.1243/1468087001545308.

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Models were developed to describe the spray wall impingement processes that take place in internal combustion engines. In this report focus is placed on the model formulation and experiment assessment of the spray/wall interaction submodels. It is identified that the Leidenfrost phenomenon is very unlikely to occur in a spark ignition (SI) engine including stratified-charge operation in a direct injection spark ignition (DISI) engine. A more comprehensive splashing/deposition threshold function is proposed to include the effects of surface roughness and pre-existing liquid film. Based on the w

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5

Ghate, Kushal, and Thirumalachari Sundararajan. "Effects of orifice divergence on hollow cone spray at low injection pressures." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 11 (2018): 4091–105. http://dx.doi.org/10.1177/0954410018813432.

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In this work, the effects of orifice divergence on spray characteristics have been reported. Parameters such as spray cone angle, liquid sheet thickness, coefficient of discharge, break-up length, and Sauter mean diameter are greatly affected by the half divergence angle [Formula: see text] at orifice exit. An experimental investigation is carried out in which water sprays from five atomizers having half divergence angle values of 0°, 5°, 10°, 15°, and 20° are studied at different injection pressures. Image processing techniques are used to measure spray cone angle and break-up length from spr

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6

Vecchio, C., F. Fabiani, M. E. Sangalli, L. Zema, and A. Gazzaniga. "Rotary Tangential Spray Technique for Aqueous Film Coating of Indobufen Pellets." Drug Development and Industrial Pharmacy 24, no. 3 (1998): 269–74. http://dx.doi.org/10.3109/03639049809085619.

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7

Zheng, Lei, Rui Zhao, Yong-Le Nian, Jun Liu, and Wen-Long Cheng. "Numerical and experimental study of the effects of tangential to axial velocity ratio and structural parameters inside the nozzle on spray characteristics." Physics of Fluids 35, no. 4 (2023): 043303. http://dx.doi.org/10.1063/5.0140753.

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Pressure swirl nozzles are widely applied in spray cooling, dust removal, and fuel injection. To better connect the nozzle structure with the internal flow to analyze their influence on spray parameters, this paper designs a nozzle structure and uses experimental measurement and computational fluid dynamics simulation methods to investigate the influence of the nozzle's tangential velocity to axial velocity ratio ( vτin/ vzin) and the swirl diversion channel eccentric distance ( dl) on the spray parameters. A phase Doppler particle analyzer was used in the experiment study to determine the spr

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8

Malkeson, S. P., U. Ahmed, A. L. Pillai, N. Chakraborty, and R. Kurose. "Evolution of Surface Density Function in an Open Turbulent Jet Spray Flame." Flow, Turbulence and Combustion 106, no. 1 (2020): 207–29. http://dx.doi.org/10.1007/s10494-020-00186-2.

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AbstractA three-dimensional Direct Numerical Simulation of an open turbulent jet spray flame representing a laboratory-scale burner configuration has been used to analyse the statistical behaviours of the magnitude of reaction progress variable gradient $$\left| {\nabla c} \right|$$ ∇ c [alternatively known as the Surface Density Function (SDF)] and the strain rates, which affect its evolution. The flame has been found to exhibit fuel-lean combustion close to the jet exit, but fuel-rich conditions have been obtained further downstream due to the evaporation of fuel droplets, which leads to the

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9

Langner, Marcel, Biwen Zhou, Florian Priese, and Bertram Wolf. "Statistical Investigation of Rotary Fluidized Bed Agglomeration Process with Tangential Spray and In-Line Particle Size Measurement for PAT Process Control." Processes 11, no. 4 (2023): 1066. http://dx.doi.org/10.3390/pr11041066.

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A statistical design of experiments for a rotary fluidized bed agglomeration process is performed to improve both the knowledge of the process and the influence of the process parameters. Agglomerates of a pharmaceutical formulation are manufactured in a laboratory fluidized bed rotor apparatus with a tangential spray nozzle. Particle size is measured in-line over the entire agglomeration process with a spatial filter velocimetry probe installed directly in the process chamber and off-line with dynamic image analysis for comparison. The influence of the process parameters spray rate, spray pre

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10

Chen, Chen, and Zhigong Tang. "Investigation of the spray formation and breakup process in an open-end swirl injector." Science Progress 103, no. 3 (2020): 003685042094616. http://dx.doi.org/10.1177/0036850420946168.

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The spray formation and breakup process in an open-end swirl injector were studied through experiments and numerical simulations. A high-speed shadowgraph system and a high-speed backlight system were adopted to record the spray. Volume of fluid was used as the interface tracking method to capture the evolution process. The filling process of the liquid film inside the injector was captured. The air core formation process as observed in the experiments differed from that depicted by the numerical simulation results. The results revealed that the spray pattern of the cross-section at the tangen

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11

Lee, Ingyu, Seokgyu Jeong, Jungsoo Yoon, Gujeong Park, and Youngbin Yoon. "Study on Spray characteristics of Dual-Manifold Injector with Various Tangential Entries." Journal of the Korean Society for Aeronautical & Space Sciences 43, no. 10 (2015): 868–74. http://dx.doi.org/10.5139/jksas.2015.43.10.868.

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12

Bouffard, J., H. Dumont, F. Bertrand, and R. Legros. "Optimization and scale-up of a fluid bed tangential spray rotogranulation process." International Journal of Pharmaceutics 335, no. 1-2 (2007): 54–62. http://dx.doi.org/10.1016/j.ijpharm.2006.11.022.

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13

Zhao, Bing Tao, Yi Xin Zhang, and Kai Bin Xiong. "Numerical Simulation of Gas Flow Pattern in Cyclone Spray Scrubber." Advanced Materials Research 233-235 (May 2011): 701–6. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.701.

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The numerical simulation of the fluid flow is presented by CFD technique to characterize the flow pattern of cyclone spray scrubber. In this process, the Reynolds-averaged Navier-Stokes equations with the Reynolds stress turbulence model (RSM) for fluid flow are solved by use of the finite volume method based on the SIMPLE pressure correction algorithm in the fluid computational domain. According to the computational results, the tangential velocity, axial velocity and turbulence intensity of the gas flow are addressed in the different flowrate. The results indicate that the CFD method can eff

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14

Chen, Chen, Yang Yang, Xiaorong Wang, and Wenxian Tang. "Effect of geometric and operating parameters on the spray characteristics of an open-end swirl injector." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 12 (2019): 4457–67. http://dx.doi.org/10.1177/0954410018824519.

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To study the influence of geometric and operating parameters on the spray characteristics of an open-end swirl injector, seven injectors with different tangential inlet diameters ( D p) and injector length to injector orifice diameter ( L/D) ratios were tested and simulated. Using high-speed backlight, the evolution laws of liquid film thickness, discharge coefficient, spray cone angle, breakup length, and velocity distribution in the swirl chamber under different geometric and operating parameters were captured after unified image processing. Low-injection pressure drop is directly proportion

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15

Vo, Tuyen, and Nam Thanh Nguyen. "RESEARCH ON NUMERICAL SIMULATION FOR VELOCITY DISTRIBUTION OF SWIRLING TURBULENT JETS IN SPRAY IRRIGATION TECHNOLOGY." Science and Technology Development Journal 13, no. 2 (2010): 93–99. http://dx.doi.org/10.32508/stdj.v13i2.2121.

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In spray irrigation technology, the change of the basic parameters of the flowfteld has relationship directly with the coefficient of swirling intensity coefficient s, with each value of swirling coefficient differently then the distribution of parameters in flow field also variedly. Remarkably change when the coefficient of swirl intensity changes through the variables as axial velocity u, tangential velocity w; the change of radial velocity V related to turbulent intensity.

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16

Yadav, Nagendra P., and Abhijit Kushari. "Spray Formation in a Twin-Fluid Internally Mixed Atomizer with Tangential Air Intake." Particle & Particle Systems Characterization 28, no. 1-2 (2011): 25–32. http://dx.doi.org/10.1002/ppsc.201100042.

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17

Mehta, P. S., S. K. Singal, and B. P. Pundir. "A Comprehensive Simulation Model for Mixing and Combustion Characteristics of Small Direct Injection Diesel Engines." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 209, no. 2 (1995): 117–26. http://dx.doi.org/10.1243/pime_proc_1995_209_192_02.

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An analytical model has been developed to predict the fuel-air mixing and burning characteristics of small direct injection (DI) diesel engines. Four mass and momentum conservation equations are written along the tangential and normal directions to the spray for both free and wall regions based on the continuum integral approach. The spray structure is multi-zonal and the simulation of atomization, droplet-size distribution, evaporation, turbulent mixing and combustion processes is included. The model predictions show good correlation with the experimental data and respond well to the variatio

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18

Dash, S. K., M. R. Halder, M. Peric, and S. K. Som. "Formation of Air Core in Nozzles With Tangential Entry." Journal of Fluids Engineering 123, no. 4 (2001): 829–35. http://dx.doi.org/10.1115/1.1412845.

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The process of formation of air core and its development with time, inside one cylindrical and one conical nozzle having two tangential entries, has been analyzed experimentally and numerically. Experiments have been carried out using Plexiglas nozzles and water in ambient air; the air core has then been photographed for different nozzles and flow parameters. Numerical simulations have been performed using a finite volume method that employs unstructured grids with cell-wise local refinement and an interface-capturing scheme to predict the shape of the air core. The shape of the air core insid

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19

Krištof, Ondřej, Pavel Bulejko, and Tomáš Svěrák. "Experimental Study on Spray Breakup in Turbulent Atomization Using a Spiral Nozzle." Processes 7, no. 12 (2019): 911. http://dx.doi.org/10.3390/pr7120911.

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Spiral nozzles are widely used in wet scrubbers to form an appropriate spray pattern to capture the polluting gas/particulate matterwith the highest possible efficiency. Despite this fact, and a fact that it is a nozzle with a very atypical spray pattern (a full cone consisting of three concentric hollow cones), very limited amount of studies have been done so far on characterization of this type of nozzle. This work reports preliminary results on the spray characteristics of a spiral nozzle used for gas absorption processes. First, we experimentally measured the pressure impact footprint of t

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20

Alves, Alexandre, Pedro Teixeira Lacava, and Cristiane Aparecida Martins. "Effects of the number of tangential passages on spray characteristics of a bipropellant atomizer." Journal of the Brazilian Society of Mechanical Sciences and Engineering 36, no. 3 (2013): 583–90. http://dx.doi.org/10.1007/s40430-013-0101-3.

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21

Cejpek, Ondřej, Milan Malý, Miloslav Bělka, and Jan Jedelský. "Replication of Pressure Swirl Atomizer by 3D Printing and Influence of Surface Roughness on the Atomization Quality." MATEC Web of Conferences 328 (2020): 01007. http://dx.doi.org/10.1051/matecconf/202032801007.

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The replication of atomizers by 3D printing technology is a new approach of producing the pressure swirl atomizers. The surface roughness of 3D printed products and manufacturing accuracy of the 3D printing process influence the atomization of the liquid. The high-speed visualization of a spray, produced by scaled 3D printed atomizer, was performed. The spray stability, cone angle and breakup length were determined. Scaled 3D printed atomizers were tested at equivalent pressures of 0.25, 0.5 and 1 bar. Non-dimensionless parameter, Reynolds number, was preserved for the scaled atomizer. The eff

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22

Arnt, A. B. C., Márcio Roberto da Rocha, Elidio Angioletto, and J. Meller. "Evaluation of Changes in Microstructural Coatings Deposited by Thermal Spray." Materials Science Forum 727-728 (August 2012): 476–79. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.476.

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In this work, microstructural changes in coatings deposited by hypersonic thermal spraying technique (HVOF) were subjected to adhesive wear tests. Materials subjected to wear lose efficiency, increase costs and direct or indirect way can stop large production systems. The mechanisms involved in this type of wear can be minimized by the microstructural changes that in many cases reduces or stops the loss of material. To perform this assessment coatings compounds of Cr3C225 (80 Ni-20 Cr) e Al2O3.TiO2 (87-13) investigated had similar hardness values (1000 HV) and chemical characteristics. Were su

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23

Tushar, Tonge* Shilpa Borkar Jagdish Baheti. "A Review on Multiple Unit Pellet System (MUPS) Delivery Systems." International Journal of Pharmaceutical Sciences 3, no. 5 (2025): 4474–90. https://doi.org/10.5281/zenodo.15533086.

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The pharmaceutical industry is currently concentrating on creating novel drug delivery systems that improve therapeutic efficacy and lessen adverse effects. When a medication product needs to be administered in a modified release pattern to senior patients, the oral drug delivery system becomes problematic, particularly because they have trouble swallowing. The design of solid dosage forms has made extensive use of Multiple Unit Pellet Systems (MUPS) tablets in recent years. One of the more recent and difficult technologies that combines the benefits of tablets with pellet-filled capsules in a

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24

Kurniawan, Muhammad Helmi, Khusnul Khotimah Ayuningtiyas, and Ridho Dwi Syahrial. "Experimental study of a breastshot waterwheel with the degree of inclination of the nozzle spray against the tip speed ratio." International Journal of Basic and Applied Science 11, no. 4 (2023): 149–60. http://dx.doi.org/10.35335/ijobas.v11i4.139.

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The energy crisis is a severe problem facing the world, including Indonesia. Along with the times, innovation is needed to implement sustainable energy. Non-fossil energy sources have not been widely used, and efforts are still needed to utilize these energy sources. The waterwheel was the first device used in water production. One of the innovations for the sustainability of non-fossil energy is to make a waterwheel. There are still several waterwheels in Indonesia, but an investigation is needed to determine their condition. So in this study, investigating the breastshot water wheel uses a n

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Rashid, Mohd Syazwan Firdaus Mat, Ahmad Hussein Abdul Hamid, Chee Sheng Ow, and Zulkifli Abdul Ghaffar. "An Experimental Investigation on the Effect of Various Swirl Atomizer Orifice Geometries on the Air Core Diameter." Applied Mechanics and Materials 225 (November 2012): 32–37. http://dx.doi.org/10.4028/www.scientific.net/amm.225.32.

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Liquid atomization is a process of changing the liquid into small droplets. There are many applications which are related to liquid atomization including fuel injection in combustion systems and also in agricultural sprays. In pressure swirl atomizer, the liquid is injected into the atomizer through tangential port and a swirling motion is formed inside the swirl chamber. In high strength of swirling motion, an air core will be visible inside the atomizer. The liquid is then discharged from the orifice to form a spray which breaks up the liquid into small droplets. The objective of this resear

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26

Piras, M., L. Marchitto, and C. Tornatore. "Supercritical water injection in a single cylinder research engine: a PIV study." Journal of Physics: Conference Series 2590, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1742-6596/2590/1/012007.

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Abstract This work presents the experimental results of a fluid dynamic investigation to characterize the injection of supercritical water in the combustion chamber of an internal combustion engine. Particle Image Velocimetry (PIV) analysis is carried out in an optically accessible 2-stroke Diesel engine. A prechamber, equipped with two optical accesses is connected to the main cylinder through a tangential duct so that the piston stroke induces a swirled motion field with angular velocities typical of light duty engines for automotive application. The engine is equipped with an injection syst

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27

Michaud, Louis Marc. "Controlled tornadoes could fix climate and energy problems." Clean Energy Science and Technology 2, no. 4 (2024): 232. https://doi.org/10.18686/cest232.

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Stationary tornadoes will be produced by having warm humid air enter the bottom of a hollow tower tangentially. A large atmospheric vortex engine (AVE) could generate 2 GW of electricity. 2000 AVE’s could provide current world electricity needs. The tower would look like a 200 m high natural draft cooling tower. The vortex is started by heating the air with steam or fuel. Subsequently, the vortex is sustained by warm humid surface air, warm sea water spray, or waste heat. Mechanical energy would be produced by expanding air into the low pressure at the base of the vortex via peripheral turbo-g

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28

Li, Xiang, Xuewen Zhang, Tianya Zhang, et al. "Insights into Microscopic Characteristics of Gasoline and Ethanol Spray from a GDI Injector Under Injection Pressure up to 50 MPa." Sustainability 16, no. 21 (2024): 9471. http://dx.doi.org/10.3390/su16219471.

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Nowadays it has become particularly valuable to control the Particulate Matter (PM) emissions from the road transport sector, especially in vehicle powertrains with an Internal Combustion Engine (ICE). However, almost no publication has focused on a comparison of the microscopic characteristics of gasoline and ethanol spray under injection pressure conditions of more than 30 MPa, except in the impingement process. By using a Phase Doppler Particles Analyser (PDPA) system, the microscopic characteristics of gasoline and ethanol spray from a Gasoline Direct Injection (GDI) injector under injecti

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Wang, Yan Hua, Shi Chun Yang, and Yun Qing Li. "Numerical Simulation of Transient Flow Inside Nozzle on Gasoline Direct Injection Engine." Advanced Materials Research 466-467 (February 2012): 1237–41. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.1237.

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To achieve transient flow characteristics at exit of nozzle orifice on gasoline direct injection engine, two phase Euler-Euler schemes was used to simulate the internal flow of the swirl nozzle. Different flow characteristics were calculated in the simulation. Different kinds of nozzle configuration were studied. Cavitaion and swirl flow occured in the nozzles. Injection hole configuration matters more than area variation of swirl tangential slot to discharge coefficient of the studied nozzle. Discharge coefficient changes a little along the injection hole length. The area of the swirl tangrnt

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Ruhyat, Nanang. "COMPARISON OF THE DRYER AIR INLET POSITION ON THE SPRAY DRYER WITH A DOUBLE CONDENSER TO PRODUCE A ROTATING FLOW THROUGHOUT THE DRYING CHAMBER: CFD ANALYSIS." International Journal of Innovation in Mechanical Engineering and Advanced Materials 5, no. 1 (2023): 16. http://dx.doi.org/10.22441/ijimeam.v5i1.21605.

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Simulation of the drying air and the spray of liquid in the spray dryer chamber with Discrete Phase Material (DPM) and Discrete Random Walk (DRW) was presented in this study using CFD methods to analyze the drying liquid. The main problem in spray drying is the adhesion of the material to the drying chamber walls, which causes uneven drying material. This adhesion can slow down the drying process and reduce productivity. The design of the drying air inlet into the drying chamber becomes essential to research. Variations in the position of the drying air inlet into the drying chamber are carrie

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Shi, Wei, Xia Zhang, and Cong Shen. "The Optimization Calculation Method Study on Longitudinal Lattice Girder of the Spray Anchor Bracing System." Advanced Materials Research 368-373 (October 2011): 1975–80. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.1975.

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As the structure component of the spray anchor bracing system, at present the structure calculation method of the longitudinal lattice girder use more simple beam, continuous beam. In order to further research the calculation theory and applicability of the longitudinal lattice girder structure, making the calculation method reflect the mechanical properties of the longitudinal lattice girder accurately, this paper through the use of ANSYS finite element numerical simulation method[1], and the improved method of Winkler[3], considering the impact of the tangential component of the anchor rod a

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Sun, Lijun, Miao Wang, Peian Chong, Yunhao Shao, and Lei Deng. "Numerical Study on Flow Field Optimization and Wear Mitigation Strategies for 600 MW Pulverized Coal Boilers." Energies 18, no. 15 (2025): 3947. https://doi.org/10.3390/en18153947.

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To compensate for the instability of renewable energy sources during China’s energy transition, large thermal power plants must provide critical operational flexibility, primarily through deep peaking. To investigate the combustion performance and wear and tear of a 600 MW pulverized coal boiler under deep peaking, the gas–solid flow characteristics and distributions of flue gas temperature, wall heat flux, and wall wear rate in a 600 MW tangentially fired pulverized coal boiler under variable loads (353 MW, 431 MW, 519 MW, and 600 MW) are investigated in this study employing computational flu

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Zhang, Xiaoyu, Xiaolei Zhang, Runze Duan, and Lujia Liu. "Effect of Hydrophilicity/Hydrophobicity of the Injector Wall on Atomization Performance." International Journal of Aerospace Engineering 2022 (October 4, 2022): 1–8. http://dx.doi.org/10.1155/2022/2152543.

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Hydrophilicity/hydrophobicity is a common physical property of the material. Water droplets roll on lotus leaf, and a lot of dust and dirt on the surface of the lotus leaf will be taken away, playing a certain cleaning role. The hydrophobic surface has drag reduction effect that would produce slip on the hydrophobic wall. There are some studies on hydrophilicity/hydrophobicity in channels, most of which focus on the effect of surface drag reduction and heat transfer on microchannels. However, few people pay attention to the effect of the hydrophilicity/hydrophobicity of the injector inner wall

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Zhao, Longzhi, Minghui Mou, Daoyun Chen, and Minshi Zhong. "Research on the Influence of Surface Defects Under the Influence of Rail Corrosion on the Fatigue Damage of Wheel Rolling Contact." Coatings 15, no. 5 (2025): 589. https://doi.org/10.3390/coatings15050589.

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Heavy rolling contact fatigue (RCF) may be caused by wheel surface defects under the influence of rail corrosion, which threatens the operational safety of rail vehicles. To investigate the role of surface defects on wheel RCF damage under the influence of rail corrosion, a salt spray tester was used to corrode the rails, an impact testing machine was employed to create surface defects, and RCF tests were completed. The role of surface defects on wheel RCF damage was studied by monitoring the wheel defect surface and cross-section. The results indicate that the tendencies of the RCF crack exte

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Kim Dung, Nguyen Thi. "RECOVERY OF PECTIC OLIGOSACCHARIDE (POS) FROM PECTIN HYDOLYSATE FOR FUNTIONAL FOODS." Vietnam Journal of Science and Technology 54, no. 4A (2018): 81. http://dx.doi.org/10.15625/2525-2518/54/4a/11981.

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Pectic oligosaccharide (POS) obtained bypartial hydrolysis of pectin is proposed as a new class of prebioticwhich has many beneficial propertiesfor the health of humans and animals. Currently only a small number of researcheshave explored the production process of POS products in laboratory-scale and pilot, however the manufacturing process, as well as the product, has not yet been offered for sale on the market. In this study, several parameters of arecovery processofPOS powder from the pectin hydrolysatehave been established: condense(5 times, by tangential filtration with nanofiltration col

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Calzada, D., A. Uribe, J. Ronceros, W. Namay, G. Zapata, and C. Raymundo. "Design of a Hydraulic Turbine Based in a Pressure Swirl Chamber using Ansys CFD." Journal of Physics: Conference Series 2947, no. 1 (2025): 012012. https://doi.org/10.1088/1742-6596/2947/1/012012.

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Abstract This study presents the simulation of internal flow of a hydraulic turbine using CFD based on pressure-swirl atomizer technology, typically used in combustion chambers of rocket engines. The proposed model is equipped with a swirl chamber with stabilizer included, dual manifold system and a rotor, each of these elements will be simulated to validate its functionality, prior to implementation and subsequent experimental testing. The results show that it is possible to produce the spray output jet even if there are interferences within the swirl chamber such as the rotor itself and the

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Li, Xiang, Xing Chen, Niancheng Hong, et al. "A CFD-DEM Simulation of Droplets in an Airless Spray Coating Process of a Square Duct." Coatings 14, no. 3 (2024): 282. http://dx.doi.org/10.3390/coatings14030282.

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The purpose of this paper is to provide a numerical simulation, taking into account the collisional interactions of droplets in an airless rotary spray coating process. The hydrodynamics of gas and droplets are simulated using the CFD-discrete element method (DEM) with the JKR contact model in an airless rotary spray coating process of a horizontal square duct. The surface energy parameter used in the JKR model is calibrated using a virtual accumulation angle test in the funnel device. Based on the distribution of accumulation angles, a suitable surface energy for wall droplets is proposed. A

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Biswas, G., and S. K. Som. "Coefficient of discharge and spray cone angle of a pressure nozzle with combined axial and tangential entry of power-law fluids." Applied Scientific Research 43, no. 1 (1986): 3–22. http://dx.doi.org/10.1007/bf00385725.

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Kou, Baofu, Pengliang Huo, and Xiaohua Hou. "Research on the Influence of External Parameters of Fan-Type Nozzle on Water Jet Performance." Shock and Vibration 2020 (September 22, 2020): 1–16. http://dx.doi.org/10.1155/2020/4386259.

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At present, high-pressure water jet technology occupies a very important position in the automobile washing industry. Some automatic washers cannot meet the washing requirements in the washing process due to unreasonable arrangement of nozzles on their spray rods. Based on the theory of computational fluid dynamics (CFD), the internal and external flow field model of the nozzle are established in this paper. Fluent is used to simulate and analyze the flow field, and the external parameters of the nozzle on the side spray bar of the automatic automobile washer are optimized. The simulation resu

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Johnson, B. V., S. J. Markowski, and H. M. Craig. "Cold Flow and Combustion Experiments With a New Burner Air Distribution Concept." Journal of Engineering for Gas Turbines and Power 108, no. 2 (1986): 370–75. http://dx.doi.org/10.1115/1.3239913.

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Experiments were conducted with a JT8D-engine sized can combustor modified such that all the combustion and dilution air entered through the burner front face from a single plenum through counter-rotating annular swirlers. Cold flow experiments were conducted to visualize and to develop a mixing and recirculation flow pattern within the combustor which contained annular and central recirculation cells and featured rapid mixing in the downstream section of the combustor. Laser velocimeter measurements, downstream of the air inlet configuration used in the combustion experiments, showed the larg

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Zhang, Jiajun, Dong Liang, and Yuanwen Cao. "Analysis of Dust Reduction Characteristics of Multistage Tandem Dust Removal System." Shock and Vibration 2023 (June 15, 2023): 1–11. http://dx.doi.org/10.1155/2023/5541196.

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Asphalt hot regeneration pavement maintenance vehicle is a type of in situ heating waste asphalt special vehicle equipment for mix and regeneration of aged asphalt. When waste asphalt mixture is heated and melted, a lot of organic fumes are typically produced, along with dust from the mixing process. Because of the complex composition of the exhaust gases produced by asphalt hot regeneration pavement maintenance vehicles, it can be difficult to purify and remove them using a single method. In order to effectively purify exhaust gas with complicated compositions, a multistage combined treatment

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Xu, Min, Paul Wan Sia Heng, and Celine Valeria Liew. "Evaluation of coat uniformity and taste-masking efficiency of irregular-shaped drug particles coated in a modified tangential spray fluidized bed processor." Expert Opinion on Drug Delivery 12, no. 10 (2015): 1597–606. http://dx.doi.org/10.1517/17425247.2015.1054278.

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Karimaei, Hadiseh, Seyed Mostafa Hosseinalipour, and Ramin Ghorbani. "A new energy-based model to predict spray droplet diameter in comparison with momentum-based models." Aircraft Engineering and Aerospace Technology 91, no. 1 (2018): 182–89. http://dx.doi.org/10.1108/aeat-06-2017-0155.

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Purpose To estimate mean droplet diameter (MDD) of a spray, three different numerical models were used in this paper. One of them is investigation of the surface instability of the liquid sheet producing from an injector. Design/methodology/approach First, the linear instability (LI) analysis introduced by Ibrahim (2006) is implemented. Second, the improved (ILI) analysis already introduced by the present authors is used. ILI analysis is different from the prior analysis, so that the instability of hollow-cone liquid sheet with different cone angles is investigated rather than a cylindrical li

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Qin, Jianxiu, and Huiqiang Zhang. "Numerical Analysis of Self-Excited Combustion Instabilities in a Small MMH/NTO Liquid Rocket Engine." International Journal of Aerospace Engineering 2020 (July 4, 2020): 1–17. http://dx.doi.org/10.1155/2020/3493214.

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Combustion instabilities in a small MMH/NTO liquid rocket engine used for satellite attitude and course control are numerically investigated. A three-dimensional Navier-Stokes code is developed to simulate two-phase spray combustion for cases with five different droplet Sauter Mean Diameters. As the droplet size increases from 30 microns to 80 microns, pressure oscillations are stronger with larger amplitudes. But an increase of the droplet size in the range of 80 microns to 140 microns indicates a reduction in the amplitudes of pressure oscillations. This trend is the same as the Hewitt crite

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Gvozdyakov, D. V., and A. V. Zenkov. "Evaluation of the efficiency of air swirl during atomization of coal-water slurries with a pneumatic atomizer." Vestnik IGEU, no. 4 (August 31, 2024): 30–40. http://dx.doi.org/10.17588/2072-2672.2024.4.030-040.

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Due to modern requirements for environmental protection, introduction of environmentally friendly power engineering technologies involves search and development of new energy sources. One of the ways to meet these requirements and maintain the same level of energy production by thermal power plants is to use multicomponent fuels. The most promising and affordable heavy fuel oil from the point of view of energy, ecology and economy are coal-water slurries (CWS). In this regard, the study of the properties and characteristics of such fuels is relevant. The coal-water slurries have been prepared

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Fedotov, F. S., and A. M. Telegin. "Simulation of a Magnetic Trap for a Magnetron Sputtering System (MPS) Using the Finite Element Method Using the PYTHON Language Module." LETI Transactions on Electrical Engineering & Computer Science 16, no. 2 (2023): 85–95. http://dx.doi.org/10.32603/2071-8985-2023-16-2-85-95.

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The modeling of a magnetic trap using pyFEMMis considered in order to select it for the design of a laboratory stand with magnetron sputtering in the form of a magnetron sputtering system with a flat cathode. This method of application was not chosen by chance, because it is more practical due to its speed of spraying thin metal films onto the substrate than a diode spray system. A magnetic trap for MSS is a subsystem whose magnetic fields are capable of holding plasma near the target. Using the developed program allows you to select the necessary trap from the proposed magnets without using a

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Petrushina, A. A., A. A. Abrashov, N. S. Grigoryan, et al. "Protective and Anti-icing Superhydrophobic Coatings on AA5056 Aluminum Alloy." Practice of Anticorrosive Protection 29, no. 1 (2024): 7–19. https://doi.org/10.31615/j.corros.prot.2024.111.1-1.

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The issues of applying superhydrophobic coatings to the surface of metals, metal products and structures are considered. This is relevant, for example, for anti-icing protection of vehicles (airplanes, ships), power lines, buildings and structures for various purposes. In these cases, superhydrophobic coatings perform the function of ice-phobic coatings. Superhydrophobic coatings also help increase the wear resistance of metal products. This work proposes a method for increasing the wear resistance of superhydrophobic coatings through the preliminary application of an adhesive sublayer using v

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Stenull, Olaf, and Tom C. Lubensky. "Director Fluctuations in Two-Dimensional Liquid Crystal Disclinations." Crystals 12, no. 1 (2021): 1. http://dx.doi.org/10.3390/cryst12010001.

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We present analytical calculations of the energies and eigenfunctions of all normal modes of excitation of charge +1 two-dimensional splay (bend) disclinations confined to an annular region with inner radius R1 and outer radius R2 and with perpendicular (tangential) boundary conditions on the region’s inner and outer perimeters. Defects such as these appear in islands in smectic-C films and can in principle be created in bolaamphiphilic nematic films. Under perpendicular boundary conditions on the two surfaces and when the ratio β=Ks/Kb of the splay to bend 2D Frank constants is less than one,

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MACCHI, A., H. RUHL, and F. CORNOLTI. "Laser absorption and fast electron transport in deformed targets." Laser and Particle Beams 18, no. 3 (2000): 375–79. http://dx.doi.org/10.1017/s0263034600183041.

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The effect of surface deformations on laser absorption and transport in overdense plasma targets is investigated with 2D Vlasov simulations. Fractional absorption increases strongly with the deformation depth and scales weakly with density or intensity. Fast electrons generated in the skin layer have high tangential velocity directed toward the deformation center. In the case of a single, smooth deformation, they may be collimated by magnetic fields into a single jet which penetrates deeply into the plasma. Small-scale surface corrugations are able to destroy the collimation of a single jet le

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Madurasinghe, M. A. D., and E. O. Tuck. "Ship bows with contiunous and splashless flow attachment." Journal of the Australian Mathematical Society. Series B. Applied Mathematics 27, no. 4 (1986): 442–52. http://dx.doi.org/10.1017/s0334270000005063.

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AbstractIn two-dimensional bow-like flows past a semi-infinite body, one must in general expect a free-surface discontinuity, in the form of a splash or spray jet. However, there is numerical evidence that special body shapes do exist for which this splash is absent. In this study, we first establish conditions on the geometry of the bow in order that it should be splash-free at zero gravity, by solving the mathematical problem exactly. We then obtain solutions for finite non-zero gravity, by solving a non-linear integral equation numerically. A class of splashless body geometries with a downw

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