Gotowe bibliografie tematyczne / Two-dimensional enclosure

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Gotowa bibliografia na temat „Two-dimensional enclosure”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Two-dimensional enclosure"

STALIULIONIS, Žygimantas, Gintautas MILIAUSKAS, Sankhya MOHANTY, and Jesper Henri HATTEL. "Numerical Modelling of Moisture Transport Between Two Enclosures Connected by a Tube." Mechanics 28, no. 5 (2022): 369–77. http://dx.doi.org/10.5755/j02.mech.32166.

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The electronics is protected using plastic or metallic enclosures. Although, the electronics is protected by the enclosures from the surrounding environment, the moisture can still enter the enclosure via gasket, plastic enclosure walls, cable feedthroughs. The moisture existing inside enclosure may condense on PCBA or components due to a temperature changes or different temperature levels and can lead to a moisture-related failures. The temperature in the enclosure is also very dependent on the location and the heating of electronic components. Furthermore, the electronics can be mounted near

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Daun, K. J., D. P. Morton, and J. R. Howell. "Geometric Optimization of Radiant Enclosures Containing Specular Surfaces." Journal of Heat Transfer 125, no. 5 (2003): 845–51. http://dx.doi.org/10.1115/1.1599369.

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This paper presents an optimization methodology for designing radiant enclosures containing specularly-reflecting surfaces. The optimization process works by making intelligent perturbations to the enclosure geometry at each design iteration using specialized numerical algorithms. This procedure requires far less time than the forward “trial-and-error” design methodology, and the final solution is near optimal. The radiant enclosure is analyzed using a Monte Carlo technique based on exchange factors, and the design is optimized using the Kiefer-Wolfowitz method. The optimization design methodo

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Chen, K. S., J. R. Ho, and J. A. C. Humphrey. "Steady, Two-Dimensional, Natural Convection in Rectangular Enclosures With Differently Heated Walls." Journal of Heat Transfer 109, no. 2 (1987): 400–406. http://dx.doi.org/10.1115/1.3248094.

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Numerical results are presented for steady natural convection in two-dimensional rectangular enclosures in which the side walls, top wall, and bottom wall are at uniform temperatures θs, θt, and θb, respectively, and θs > θt > θb. Raylight numbers ranging from 104 to 107 and aspect ratios of 1 and 1.5 were investigated. The top wall was modeled as an impermeable rigid surface or an impermeable free-moving boundary. The calculations reveal two flow regions. In the upper part of the enclosure two large counterrotating cells appear, separated by a descending plume of fluid. Near the bottom

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Mei, Chuan Zhi, Lin Hua Piao, Quan Gang Yu, Bao Li Zhang, Xia Ding, and Xing Wang. "Study on the Pendulum Characteristic of Nature Convection in Dimensional Enclosure." Advanced Materials Research 542-543 (June 2012): 1120–23. http://dx.doi.org/10.4028/www.scientific.net/amr.542-543.1120.

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In this paper, the pendulum characteristic of nature convection gas in dimensional enclosure is analyzed by FEM. Using ANSYS-FLOTRAN CFD program, the stream field and the temperature field caused by the point heat source, when the two-dimensional enclosure is inclined, has been obtained by a series of procedure, such as model building, meshing, loads applying and equation solving. The results are as follow: (1)Under the buoyancy lift affecting, the direction of nature convection gas always keeps the vertical upward in two-dimensional enclosure, nature convection gas has the pendulum characteri

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Yu, Quan Gang, Lin Hua Piao, and Xing Wang. "FEM Analysis of the Pendulum Characteristic of Nature Convection in Dimensional Enclosure." Advanced Materials Research 505 (April 2012): 195–98. http://dx.doi.org/10.4028/www.scientific.net/amr.505.195.

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George, Ballard W. "Compressor noise control with a two‐dimensional enclosure." Journal of the Acoustical Society of America 114, no. 4 (2003): 2355. http://dx.doi.org/10.1121/1.4781165.

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Hamed Mahmoud, Mohammed, and Ali Jaber Alkhakani. "Effect of Adding Horizontal Rings on the Thermal Behavior of Cylindrical Liquid Enclosure Exposed to High Heat Flux." University of Thi-Qar Journal for Engineering Sciences 6, no. 2 (2015): 34–52. http://dx.doi.org/10.31663/utjes.v6i2.77.

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Power generation by using concentrated solar thermal energy on liquid enclosures is one of the most promising renewable energy technologies. In this work, a developed liquid enclosure fitted with various number and configurations of horizontal metal rings have been analyzed, fabricated and tested. The influence of adding metal rings arrangement is investigated for its potential to enhance radial heat conduction to the center-line of the enclosure from the side-walls. Experiments were carried out for fluid in both static and dynamic modes of operation inside the enclosure that subjected to high

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Aktas, M. K., and T. Ozgumus. "A numerical investigation of the effects of a transverse temperature gradient on the formation of regular and irregular acoustic streaming in an enclosure." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 225, no. 1 (2010): 132–44. http://dx.doi.org/10.1243/09544062jmes1834.

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The effects of a transverse temperature gradient on the formation of regular and irregular acoustic streaming structures in air-filled, two-dimensional, rectangular, shallow enclosures carrying a longitudinal sound field are investigated numerically. The fluid motion is induced by the harmonic vibration of the enclosure left wall. The fully compressible form of the Navier—Stokes equations is considered to predict the primary oscillatory and secondary pseudo-steady streaming flow fields. An explicit time-marching flux-corrected transport algorithm is used to simulate the acoustic wave formation

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Ahmadi, Mehdi. "NATURAL CONVECTIVE HEAT TRANSFER IN A POROUS MEDIUM WITHIN A TWO DIMENSIONAL ENCLOSURE." IIUM Engineering Journal 18, no. 2 (2017): 196–211. http://dx.doi.org/10.31436/iiumej.v18i2.593.

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In this paper, to achievement the effect of increase number of heating components arrangement on the rate of heat transfer of natural convection, that others have been less noticed. Therefore, in each stage increase the number of heating components so much the space occupied by them remains constant. Then by calculating the amount of heat transfer in different Rayleigh number became clear that minify and distributing heating solid phase in the enclosure increases the total Nusselt number and heat transfer, One reason could be high intensity of fluid motion in corners and near walls of the encl

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SEZAI, I., and A. A. MOHAMAD. "Three-dimensional double-diffusive convection in a porous cubic enclosure due to opposing gradients of temperature and concentration." Journal of Fluid Mechanics 400 (December 10, 1999): 333–53. http://dx.doi.org/10.1017/s0022112099006540.

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A three-dimensional mathematical model based on the Brinkman extended Darcy equation has been used to study double-diffusive natural convection in a fluid-saturated porous cubic enclosure subject to opposing and horizontal gradients of temperature and concentration. The flow is driven by conditions of constant temperature and concentration imposed along the two vertical sidewalls of the cubic enclosure, while the remaining walls are impermeable and adiabatic. The numerical simulations presented here span a wide range of porous thermal Rayleigh number, buoyancy ratio and Lewis number to identif

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Rozprawy doktorskie na temat "Two-dimensional enclosure"

Bong, Wen Jiann. "Limitations of Zone Models and CFD Models for Natural Smoke Filling in Large Spaces." Thesis, University of Canterbury. Department of Civil and Natural Resources Engineering, 2012. http://hdl.handle.net/10092/10342.

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This research report examines the use of zone modelling compared with CFD modelling to determine when zone model approximation is valid and when a CFD model might be required. A series of computer simulations with enclosures and fires of various sizes was performed to compare the capabilities and limitations of the two computer methods. The relationship between the size of the enclosure space and the size of the fire has been demonstrated in a dimensionless form. The zone model BRANZFIRE and the CFD model FDS were used for simulating smoke development. The simulations included various full-sc

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Ham, Christopher. "Periodic orbit analysis of the Helmholtz equation in two-dimensional enclosures." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/65915/.

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This thesis examines how periodic orbits may be used in acoustics to understand solutions of the Helmholtz equation. A review of the links between ray and wave mechanics is given including WKBJ (Wentzel, Kramers, Brillouin and Jeffreys) and EBK (Einstein, Brillouin, Keller) methods. It is also noted that some mode shapes in chaotic enclosures are scarred by the short periodic orbits. This motivates the proposal of the Mode Scar Hypothesis and the Mode Resonance Function Hypothesis. The trace formula, which is a sum over periodic orbits, approximates the level density for an acoustic enclosure.

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Jen-Shuo, Hsu, and 許仁碩. "Natural Convection in a Two-dimensional Enclosure for Various Aspect Ratio using Moving Particle Method with Pressure Meshes." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/55987249132831615525.

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碩士 國立高雄海洋科技大學 輪機工程研究所 100 In this study, a brand new moving particle method is applied to the problem of natural convection in a cavity with rectangular configuration. The numerical characteristics of this method are also extensively studied. The fixed pressure grid provides more precise evaluations on the pressure-related operating terms occurring in governing equations, since the fact has shown that the behavior in pressure is not the type of convection. Therefore, difference form of pressure derived by the present formulation is more precise than the traditional moving particle

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Chiu, Wei-Sheng, and 邱偉勝. "Free Convection Heat Transfer in a Two-dimensional Enclosure with Inclined Alignment, Aspect Ratio and Rayleigh Number Effects." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/48729q.

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碩士 國立虎尾科技大學 機械與機電工程研究所 98 Abstract The problem of two-dimensional steady state natural convection heat transfer in a rectangular enclosure filled with different fluids, different aspect ratio, inclined alignment and Rayleigh number has been investigated numerically and experimentally. Use fortran set up to two-dimensional flow field analyse. It’s about putting the air, water, mixture fluids(water/EG) in a rectangular enclosure container which has two sides. One of it is cooling surface, another is heating surface, and others are adiabatic surfaces. In the numerical formulation,

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Jena, Prabir kumar. "Analysis of Combined Conductive and Radiative Heat Transfer in a Two Dimensional Square Enclosure using the Finite Volume Method." Thesis, 2009. http://ethesis.nitrkl.ac.in/1480/1/Prabir.pdf.

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An efficient tool to deal with multidimensional radiative heat transfer is in strong demand to analyse the various thermal problems combined either with other modes of heat transfer or with combustion phenomena. Combined conduction and radiation heat transfer without heat generation is investigated. Analysis is carried out for both steady and unsteady situations. Two-dimensional gray Cartesian enclosure with an absorbing, emitting, and isotropically scattering medium is considered. Enclosure boundaries are assumed at specified temperature. The finite volume method is used to solve the energy

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Zou, Yuan-Xiang, and 鄒淵翔. "Natural convection of magnetic fluids in two-dimensional square enclosures." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/45467177704012157991.

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碩士 國立成功大學 機械工程學系碩博士班 92 Magnetic fluids have many promising applications in thermo-fluid engineering. This is mainly because that, when magnetic fluids are in use, the effects of gravitational acceleration on the flow can then be augmented by a magnetic body force. It is also well known that thermo-magnetic free convection in a magnetic fluid is significantly stronger than Benard convection in non-magnetic fluids. Clearly, understanding the characteristics of natural convection of magnetic fluids is of fundamental importance in fluid science and engineering. 　　In this thesis, u

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Części książek na temat "Two-dimensional enclosure"

Siddheshwar, P. G., and B. N. Veena. "Study of Steady, Two-Dimensional, Unicellular Convection in a Water-Copper Nanoliquid-Saturated Porous Enclosure Using Single-Phase Model." In Trends in Mathematics. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01123-9_16.

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Garrett, Steven L. "Three-Dimensional Enclosures." In Understanding Acoustics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44787-8_13.

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Abstract In this chapter, solutions to the wave equation that satisfies the boundary conditions within three-dimensional enclosures of different shapes are derived. This treatment is very similar to the two-dimensional solutions for waves on a membrane of Chap. 10.1007/978-3-030-44787-8_6. Many of the concepts introduced in Sect. 10.1007/978-3-030-44787-8_6#Sec1 for rectangular membranes and Sect. 10.1007/978-3-030-44787-8_6#Sec5 for circular membranes are repeated here with only slight modifications. These concepts include separation of variables, normal modes, modal degeneracy, and density o

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Ihle, C., Y. Niño, and R. Frederick. "Numerical simulations and linear stability analysis of transient buoyancy-induced flow in a two-dimensional enclosure." In Environmental Hydraulics and Sustainable Water Management, Two Volume Set. CRC Press, 2004. http://dx.doi.org/10.1201/b16814-42.

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Streszczenia konferencji na temat "Two-dimensional enclosure"

Andrews, Conrad, Gheorghe Bunget, Kevin M. Farinholt, and Fritz J. Friedersdorf. "Low-Cost Autonomous Condition Monitoring System for Tank Coatings." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05688.

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Abstract Navy ships rely on a combination of coatings and cathodic protection (CP) systems to protect steel tanks and enclosures. Corrosion of tanks and enclosures was named the top corrosion expense on Navy vessels, and recently accounted for $250 million in annual direct costs.1 Presently, a coating health monitoring technology that relies on electrochemical sensors and stochastic models is being developed to quantify the location and extent of coating damage, while providing a real-time assessment of CP system performance. This technology is based on an ultra-low power, low cost smart senso

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Ertürk, Hakan, Ofodike A. Ezekoye, and John R. Howell. "Inverse Solution of Radiative Heat Transfer in Two-Dimensional Irregularly Shaped Enclosures." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1373.

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Abstract An inverse solution technique is used to predict the necessary temperature and heat flux distributions of the heater section of a two-dimensional enclosure so the heater satisfies the specified heat flux and temperature distributions of design surfaces, while satisfying one thermal boundary condition for the other walls. Radiation is the dominant mode of heat transfer in systems where high temperatures are present; therefore, it is considered as the only mode of heat transfer in this study. The two-dimensional enclosures considered in this study are made up of straight segments, posit

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BOEHMAN, ANDRE. "Numerical modeling of two dimensional convection in an enclosure." In 25th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-71.

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Oosthuizen, Patrick H. "Free Convective Flow in a Two Enclosure Arrangement With a High Aspect Ratio Side Enclosure Joined to a Large Square Enclosure." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1411.

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Abstract A numerical study of free convective flow in a vertical joined two-enclosure arrangement has been undertaken. In this arrangement, a vertical heated wall kept at a uniform high temperature is contained in a high aspect ratio rectangular side enclosure. This enclosure is separated from a larger square enclosure by a vertical dividing wall which is impermeable but offers no resistance to heat transfer. The vertical wall of the main flow enclosure opposite to the dividing wall is maintained at a uniform lower temperature. All remaining walls in both enclosures are adiabatic. The situatio

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Oosthuizen, Patrick H. "Natural Convective Flow in a Three Enclosure System Involving Two High Aspect Ratio Side Enclosures Joined to a Large Square Enclosure With Interfacial Heat Generation." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47115.

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A numerical study of free convective flow in a vertical joined three enclosure arrangement has been undertaken. In this arrangement, a vertical heated wall kept at a uniform high temperature is contained in a high aspect ratio rectangular side enclosure. This enclosure is joined to a second high aspect ratio rectangular side enclosure which has the same height as the first side enclosure, the two enclosures being separated by a vertical impermeable dividing wall which offers no resistance to heat transfer. The second side enclosure is joined to a larger square enclosure, the vertical dividing

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Daun, K. J., D. P. Morton, and J. R. Howell. "Geometric Optimization of Radiant Enclosures Containing Specular Surfaces, Through Non-Linear Programming." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33896.

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This paper presents an optimization methodology for designing radiant enclosures containing specularly-reflecting surfaces. The optimization process works by making intelligent perturbations to the enclosure geometry at each design iteration using specialized numerical algorithms. This requires far less time than the forward “trial-and-error” design methodology, and the final solution is near optimal. In this application, the radiant enclosure is analyzed using a Monte Carlo technique based on exchange factors, and the design is optimized using the Kiefer-Wolfowitz method. This design methodol

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KOBAYASHI, YASUNORI. "Two-dimensional condensing vapor flow on parallel flat plates in an enclosure." In 20th Thermophysics Conference. American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-1046.

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Aktas, Murat K., and Turkuler Ozgumus. "Heat Transfer Enhancement by Irregular Acoustic Streaming in a Shallow Enclosure." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88201.

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The effects of classical and irregular acoustic streaming structures on convective heat transport in air-filled two dimensional rectangular enclosures are investigated numerically. The oscillatory fluid motion and the resulting streaming motion are driven by cyclic vibration of the enclosure left wall. The fully compressible form of the Navier – Stokes equations are employed to model the transport phenomenon in the enclosure. An explicit time-marching Flux-Corrected Transport (FCT) Algorithm is used to simulate the oscillatory flow field, streaming patterns and associated thermal convection in

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Cheng, Qiang, and Huai-Chun Zhou. "THE DRESOR METHOD FOR RADIATIVE HEAT TRANSFER IN A TWO-DIMENSIONAL, RECTANGULAR ENCLOSURE." In RADIATIVE TRANSFER - V. Proceedings of the Fifth International Symposium on Radiative Transfer. Begellhouse, 2007. http://dx.doi.org/10.1615/ichmt.2007.radtransfproc.130.

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Akyuzlu, K. M., and J. Farkas. "An Experimental Study of Natural Convection in a Rectangular Enclosure Using PIV Measurement Techniques." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64276.

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An experimental study is conducted to determine the circulation patterns inside a rectangular enclosure due to natural convection using a Particle Image Velocimeter (PIV). Experiments were conducted using two different fluids (air and water) and for rectangular enclosures with aspect ratios 0.5 and 1.0. Natural convection in enclosures has been experimentally studied in the past. Many of these studies cited in the literature use some kind of an optical method like interferograms, shadowgraphs, streak photographs, or multi-exposure photographs to visualize the flow patterns in the enclosure. Th

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