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Tesis sobre el tema "Heat – Transmission – Computer simulation"

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Publicado: 4 de junio de 2021

Última modificación: 30 de enero de 2023

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1

Srinivasan, Raghavan. "CFD Heat Transfer Simulation of the Human Upper Respiratory Tract for Oronasal Breathing Condition." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/29310.

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In this thesis. a three dimensional heat transfer model of heated airflow through the upper human respiratory tract consisting of nasal, oral, trachea, and the first two generations of bronchi is developed using computational fluid dynamics simulation software. Various studies have been carried out in the literature investigating the heat and mass transfer characteristics in the upper human respiratory tract, and the study focuses on assessing the injury taking place in the upper human respiratory tract and identifying acute tissue damage based on level of exposure. The model considered is for

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2

Shao, Ming. "Modelling simultaneous heat and mass transfer in wood." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/42073.

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The fundamental and quantitative study of heat and mass transfer processes in wood plays an important role for understanding many important production processes, such as wood drying and hot-pressing. It will help us improve the existing products and production techniques and develop new manufacturing technology. The most difficult aspect of the study is the complicated interactions of heat and mass transfer mechanisms. Extensive characterization of these physical processes using a strictly experimental approach is extremely difficult because of the excessively large number of variables that mu

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3

Baumgratz, Filipe Dias. "Estudo da distribuição da temperatura em encapsulamentos de dispositivos MOSFET utilizando simulação por métodos de elementos finitos." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259569.

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Orientador: Marco Antônio Robert Alves<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-19T12:32:23Z (GMT). No. of bitstreams: 1 Baumgratz_FilipeDias_M.pdf: 32610409 bytes, checksum: e8a789aa353258a54ae8a692c6fd224b (MD5) Previous issue date: 2011<br>Resumo: O transistor MOSFET teve uma evolução muito grande desde sua invenção até os dias de hoje. As dimensões foram reduzidas, a capacidade de integração de componentes e frequência de operação aumentaram, como consequência desta evolução houv

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4

Gempesaw, Daniel. "A multi-resolution discontinuous Galerkin method for rapid simulation of thermal systems." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42775.

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Efficient, accurate numerical simulation of coupled heat transfer and fluid dynamics systems continues to be a challenge. Direct numerical simulation (DNS) packages like FLU- ENT exist and are sufficient for design and predicting flow in a static system, but in larger systems where input parameters can change rapidly, the cost of DNS increases prohibitively. Major obstacles include handling the scales of the system accurately - some applications span multiple orders of magnitude in both the spatial and temporal dimensions, making an accurate simulation very costly. There is a need for a simula

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5

Li, Shuo. "A Numerical Study of Micro Synthetic Jet and Its Applications in Thermal Management." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7539.

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A numerical study of axisymmetric synthetic jet flow was conducted. The synthetic jet cavity was modeled as a rigid chamber with a piston-like moving diaphragm at its bottom. The Shear-Stress-Transportation (SST) k-omega and #61559; turbulence model was employed to simulate turbulence. Based on time-mean analysis, three flow regimes were identified for typical synthetic jet flows. Typical vortex dynamics and flow patterns were analyzed. The effects of changes of working frequency, cavity geometry (aspect ratio), and nozzle geometry were investigated. A control-volume model of synthetic jet cav

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6

Mulcahey, Thomas Ian. "Convective instability of oscillatory flow in pulse tube cryocoolers due to asymmetric gravitational body force." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51808.

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Pulse tube cryocoolers (PTCs) are among the most attractive choices of refrigerators for applications requiring up to 1 kW of cooling in the temperature range of 4-123 K as a result of the high relative efficiency of the Stirling cycle, the reliability of linear compressors, and the lack of cryogenic moving parts resulting in long life and low vibration signature. Recently, PTCs have been successfully used in applications in the 150 K range, extending the useful range of the device beyond the traditional cryogenic regime. A carefully designed cylindrical cavity referred to as the pulse tube re

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7

Mioralli, Paulo Cesar. "Analise termica de um regenerador rotativo." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263462.

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Orientador: Marcelo Moreira Ganzarolli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-05T19:55:49Z (GMT). No. of bitstreams: 1 Mioralli_PauloCesar_M.pdf: 2264914 bytes, checksum: fd6e486b3b1e372c70c340521a3de11d (MD5) Previous issue date: 2005<br>Resumo: Este estudo concentra-se na análise térmica de um regenerador rotativo, no qual o processo de transferência de calor é investigado numericamente. As equações de transporte foram discretizadas utilizando o método de volumes finitos e um programa computaci

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8

Tomazeti, Cristina Autuori. "Analise numerica do desempenho termico de trocadores de calor de correntes cruzadas." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264127.

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Orientador: Carlos Alberto Carrasco Altemani<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-07T14:45:34Z (GMT). No. of bitstreams: 1 Tomazeti_CristinaAutuori_D.pdf: 4089449 bytes, checksum: 65558b112b34461f8da3f544b8666a0d (MD5) Previous issue date: 2006<br>Resumo: Uma análise foi desenvolvida para avaliar o desempenho de trocadores de calor compactos de correntes cruzadas de placas aletadas com canais de seção transversal arbitrária. Os coeficientes convectivo e de atrito foram obtidos através de simulação num

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9

Lavarda, Jairo Vinícius. "Convecção natural de fluidos de lei de potência e de Bingham em cavidade fechada preenchida com meio heterogêneo." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1306.

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CAPES<br>Vários estudos numéricos investigaram cavidades fechadas sob o efeito da convecção natural preenchidas com fluidos newtonianos generalizados (FNG) nos últimos anos pelas aplicações diretas em trocadores de calor compactos, no resfriamento de sistemas eletrônicos e na engenharia de polímeros. Neste trabalho é realizada a investigação numérica do processo de convecção natural de fluidos de lei de Potência e de Bingham em cavidades fechadas, aquecidas lateralmente e preenchidas com meios heterogêneos e bloco centrado. O meio heterogêneo é constituído de blocos sólidos, quadrados, descon

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10

Spinelli, Jose Eduardo. "Simulação do lingotamento continuo de tiras finas de aços." [s.n.], 2000. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264701.

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Orientador: Amauri Garcia<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-07-27T19:18:36Z (GMT). No. of bitstreams: 1 Spinelli_JoseEduardo_M.pdf: 6965190 bytes, checksum: 39afbc7a3acd510a9c00a458e1f8ba9a (MD5) Previous issue date: 2000<br>Resumo: Entende-se por modelagem de processo, o desenvolvimento de uma representação quantitativa ou qualitativa dos fenômenos físicos associados ao processo. Neste trabalho são realizadas simulações do processo twin roll de lingotamento contínuo de tiras de aços, utilizando

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11

Chen, Zong-Ping. "Three-dimensional hyperthermia cancer treatment simulation." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184852.

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A simulation program to study the three dimensional temperature distributions produced by hyperthermia in anatomically realistic inhomogeneous tissue models has been developed. The anatomical data for the inhomogeneous tissues of the human body are entered on a digitizing tablet from serial CT scans. The program not only predicts temperature distributions in regions dominated by blood perfusion (with large number of small capillaries), but it can also predict the temperatures inside of and at the vicinity of large blood vessels. The program can be used for different power deposition patterns f

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12

Ben, Moussa Rim. "Contribution to thermal radiation to dust flame propagation : application to aluminium dust explosions." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2401/document.

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Ces travaux de thèse sont consacrés à l’examen du rôle du rayonnement thermique dans le processus de propagation des flammes issues de la combustion des particules d’aluminium dans l’air. Le sujet étant complexe et d’un intérêt industriel, il nécessite de prendre en compte le couplage de nombreux phénomènes physico-chimiques afin de prédire finement les conséquences des explosions de poussières. Une analyse bibliographique approfondie est proposée, concernant les mécanismes d’inflammation et de combustion des particules d’aluminium et aussi concernant les connaissances relatives à la propagati

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13

Janzen, Isaiah. "Modeling of Heat Treating Processes for Transmission Gears." Digital WPI, 2009. https://digitalcommons.wpi.edu/etd-theses/1123.

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"The effects of heat treating process parameters on the microstructure, residual stress, and distortion of a vacuum carburized, quenched and cold treated ring gear made of Pyrowear 53 has been determined using Abaqus and DANTE software. The data from these finite element method simulations was compared to measured values from physical testing. It was found that the heat treating process of the ring gear could be simulated and provide similar results to the measured and specified values for hardness, carbon content, and distortion. The simulations and distortion in this paper provide a detaile

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14

Yang, Xiaofei. "Inferring disease transmission networks." HKBU Institutional Repository, 2014. https://repository.hkbu.edu.hk/etd_oa/88.

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To investigate how an infectious disease spreads, it is desirable to use the observed surveillance data to discover the underlying (often hidden) disease transmission networks. Previous studies have provided methods for inferring information diffusion networks in which each node corresponds to an individual person within the diffusion network. However, in the case of disease transmission, to effectively propose and implement intervention strategies, it is more realistic and reasonable for policy makers to study the diffusion patterns at a metapopulation level, that is, to consider disease tr

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15

Roddier, Nicolas 1965. "Curvature sensing for Adaptive Optics: A computer simulation." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/291948.

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This thesis describes computer simulations of a new wavefront sensing technique for Adaptive Optics based on local wavefront curvature measurements, along with edge slope measurements. The output signal from the curvature measurements, along with edge slope measurements. The output signal from the curvature sensor can be directly applied to the electrodes of a bimorph or membrane mirror. The mirror is used as an analog device to solve the Poisson Equation, providing a fast real time compensation for atmospheric disturbances. The open loop characteristics of the system are presented. The ideal

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16

Liao, Jen-Chyi. "Computer simulation of multiple coupled transmission lines in electronic packaging application." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184659.

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A method for simulating the transient responses of networks containing lossless transmission lines and lumped parameter elements of circuits, both linear and nonlinear, has been developed and investigated. The method combines the technique of network analysis and that of modal decomposition of transmission lines. A prototype computer simulation program, called UANTL, based on the developed algorithm has been implemented. Several example networks have been simulated using this program. The results have been compared with those generated by the well known circuit simulator program called SPICE.

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17

Ahmad, Imtiaz 1962. "Simulation of turbulent flow and heat transfer under an impinging round jet discharging into a crossflow." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66202.

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18

Bernier, Jessica A. (Jessica Ashley). "Numerical field simulation for parallel transmission in MRI at 7 tesla." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66025.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 41-42).<br>Parallel transmission (pTx) is a promising improvement to coil design that has been demonstrated to mitigate B1* inhomogeneity, manifest as center brightening, for high-field magnetic resonance imaging (MRI). Parallel transmission achieves spatially-tailored pulses through multiple radiofrequency (RF) excitation coils that can be activated independently. In this work, simulations of magne

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19

Kitchovitch, Stephan. "Computational modelling and analysis of seasonal influenza transmission and evolution." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610402.

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20

Krempel, Louis A. "Experimental temperature measurements of microelectronic computer boards using an infrared camera." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/16390.

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21

PLAISANT, ANDRE LUIZ DA ROSA. "DYNAMIC SIMULATION OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEMS IN A PERSONAL COMPUTER." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1991. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8803@1.

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CENTRO DE PESQUISA DE ENERGIA ELÉTRICA<br>Este trabalho trata do desenvolvimento e implementação de software destinado à simulação dinâmica de sistemas de transmissão 3m corrente contínua em microcomputador digital. A formulação matemática para a solução das equações diferenciais baseia-se nas vaiáveis de estado do sistema, e o método de integração numérica utilizado é o de Eüler Modificado. O modelo dinâmico de máquina síncrona é representado em suas grandezas de fase a, b, c. O programa digital conta, ainda, com telas gráficas para a visualização de resultados.<br>This work is conce

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22

Rogers, Daniel J. "Molecular dynamics simulation of the carbon nanotube - substrate thermal interface resistance." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31765.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Dr. Jianmin Qu; Committee Member: Dr. CP Wong; Committee Member: Dr. Yogendra Joshi. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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23

Smith, Brandon. "Simulation of Heat/Mass Transfer of a Three-Layer Impingement/Effusion Cooling System." Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5509.

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Cooling techniques for high density electrical components and electronic devices have been studied heavily in recent years. The advancements in the electrical/electronic industry have required methods of high heat flux removal. Many of the current electrical components and electronic devices produce a range of heat fluxes from 20 W/cm2 – 100 W/cm2. While parallel flow cooling systems have been used in the past, jet impingement is now more desirable for its potential to have a heat transfer coefficient 3-5 times greater than that of parallel flow at the same flow rate. Problems do arise when t

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24

Bale, Siddalingaswamy. "Simulation of data link layer of communication protocols using Ada." Virtual Press, 1989. http://liblink.bsu.edu/uhtbin/catkey/722787.

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Communication and networking are vast areas which are developing rapidly. It is very important to know in detail how the system works, how it can be enhanced to meet today's requirement, how to implement the appropriate techniques to obtain desired results etc. To explain all of the above, simulation techniques were adopted. Simulation plays an important role in developming new designs and modifying existing systems to make them more feasible and efficient.Protocols are the back bones of the communication systems and play a major role in data transfer. The review of literature provides an expl

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25

Schwentker, Robert Andrew. "Advances to a computer model used in the simulation and optimization of heat exchangers." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2997.

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Thesis (M.S.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Dept. of Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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26

Salazar, Santiago. "Conjugate heat transfer on a gas turbine blade." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4546.

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Clearances between gas turbine casings and rotating blades is of quite importance on turbo machines since a significant loss of efficiency can occur if the clearances are not predicted accordingly. The radial thermal growths of the blade may be over or under predicted if poor assumptions are made on calculating the metal temperatures of the surfaces exposed to the fluid. The external surface of the blade is exposed to hot gas temperatures and it is internally cooled with air coming from the compressor. This cold air enters the radial channels at the root of the blade and then exists at the tip

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27

Ghasemi, Hamid-Reza M. R. "Computer simulation of carburization corrosion of nickel-base superalloys." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/76035.

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A computer model for diffusion-controlled internal precipitation was used to simulate the corrosion behavior of Ni-based superalloys in carburizing atmospheres. The model is based on Crank-Nicholson finite difference solution of the diffusion equation. The code also includes the ternary cross diffusion effect due to substitutional alloying elements that are preferentially oxidized. The model can treat two sets of boundary conditions corresponding to the presence or absence of a protective oxide scale. It accounts for internal precipitation of corrosion products whenever thermodynamic solubilit

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28

Robinson, Robert Allen. "An Electroacoustic Analysis of Transmission Line Loudspeakers." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14579.

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The concept of mounting a loudspeaker on one end of a sound-absorbing tube has existed since at least 1936. Surprisingly, a detailed mathematical analysis of the configuration has not been performed, nor has a design method been established. This configuration, known as a transmission line loudspeaker, has received little consideration in the reviewed literature. Instead, it has become frequently featured in magazines for audio hobbyists, where it is experimentally designed with rules seemingly derived from hearsay and described with terms of high praise. In this dissertation, an electro-acous

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29

Padgett, James D. "Effectiveness of Additive Correction Multigrid in numerical heat transfer analysis when implemented on an Intel IPSC2." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4429.

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The effectiveness of the Additive Correction Multigrid (ACM) algorithm, a line-byline Tri-diagonal Matrix Algorithm (TDMA), and simple Gauss-Seidel (GS) iteration in numerical heat transfer analysis is investigated on a conventional single processor computer and on a distributed memory parallel computer. The performance of these methods is studied by solving a two-dimensional, steady heat conduction problem. The execution time of ACM on a single processor is proportional to the number of unknowns to the 1.5 power. This is in contrast to the execution time of the TDMA for which the execution ti

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30

Uzelac, Lawrence Stevan. "A Multiple Coupled Microstrip Transmission Line Model for High-Speed VLSI Interconnect Simulation." PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4526.

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A model is presented which incorporates the advantages of a mixed mode simulation to characterize transmission line behavior in multiple coupled Transmission line systems. The model is intended for use by digital circuit designers who wish to be able to obtain accurate transmission line behavior for complex digital systems for which continuous time simulation tools such as SPICE would time prohibitive. The model uses a transverse electromagnetic wave approximation to obtain solutions to the basic transmission line equations. A modal analysis technique is used to solve for the attenuation and p

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31

Zhao, Ruijie. "Analysis, simulation and optimization of ventilation of aluminum smelting cells and potrooms for waste heat recovery." Doctoral thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/25771.

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En raison des quantités d’énergie requises par la production primaire d’aluminium et le rendement relativement faible, les rejets thermiques de cette industrie sont énormes. Ils sont par contre difficiles à utiliser à cause de leur faible température. De plus, tout changement apporté pour augmenter la température des rejets peut avoir un impact important sur la production. La compréhension du transfert thermique et de l’écoulement d’air dans une cuve peut aider à maintenir les conditions de la cuve lorsque des modifications y sont apportées. Le présent travail vise à développer cette compréhen

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32

Miller, Mark W. "Heat transfer in a coupled impingement-effusion cooling system." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4807.

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The efficiency of air-breathing gas turbine engines improves as the combustion temperature increases. Therefore, modern gas turbines operate at temperatures greater than the melting temperature of hot-gas-path components, and cooling must be introduced in order to maintain mechanical integrity of those components. Two highly effective techniques used in modern designs for this purpose are impingement cooling and use of coolant film on hot-gas-path surface introduced through discrete film or effusion holes. In this study, these two mechanisms are coupled into a single prototype cooling system.

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33

Amini, Manesh Navid. "Heat transfer in multi-layer energetic nanofilm on composites substrate." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4587.

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Numerical model was also used to estimate three major variables for a range of 30-60 m/s. In fact, the maximum combustion flame temperature that corresponds to flame speed along with the length of the flame, density of the product behind the flame, and maximum penetration depth in steady reaction, were calculated. These studies will aid in the design of nEM multilayer thin film. As further numerical and experimental results are obtained for different nEM thicknesses, a unified model involving various parameters can be developed.; The main purpose of this work is to find a physical and numerica

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34

Hardy, Matthew. "Heat Flux Modeling of Asymmetrically Heated and Cooled Thermal Stimuli." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6654.

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Thermal sensation is one of the most dynamic stimulus-response systems in the human body. It is relied upon for safety, comfort and general equilibrium of the human body. Thermal sensation is dependent upon many variables such as area of effected skin, rate of temperature change and location of stimulation. It has been shown that certain rates of change can intensify the sensation of heating or cooling. Conversely, sufficiently low rates of change can go undetected by the skin. As such, the thermal response system can be manipulated by the proper combination of applied hot and cold stimuli. Pr

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35

Koh, Jin Hou. "Simulation modeling and analysis of device-aware network architectures." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Dec%5FKoh.pdf.

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36

Priedeman, Douglas Kelly. "Testing of a residential GAX absorption heat pump and chiller and verification of a computer cycle simulation /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487948440827071.

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37

Beller, Douglas K. "Alternate Computer Models of Fire Convection Phenomena for the Harvard Computer Fire Code." Digital WPI, 2000. https://digitalcommons.wpi.edu/etd-theses/892.

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"Alternate models for extended ceiling convection heat transfer and ceiling vent mass flow for use in the Harvard Computer fire Code are developed. These models differ from current subroutines in that they explicitly consider the ceiling jet resulting from the fire plume of a burning object. The Harvard Computer fire Code (CFC) was used to compare the alternate models against the models currently used in CFC at Worcester Polytechnic Institute and with other available data. The results indicate that convection heat transfer to the ceiling of the enclosure containing the fire may have been previ

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38

Johnson, Wesley Louis. "Thermal performance of cryogenic multilayer insulation at various layer spacings." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4681.

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Multilayer insulation (MLI) has been shown to be the best performing cryogenic insulation system at high vacuum (less than 10[super]-3 torr), and is widely used on spaceflight vehicles. Over the past 50 years, many numerous investigations of MLI have yielded a general understanding of the many variables associated with MLI. MLI has been shown to be a function of variables such as warm boundary temperature, the number of reflector layers, and the spacer material in between reflectors, the interstitial gas pressure and the interstitial gas. Because conduction between reflectors increases with th

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39

French, Ian Dept of Computer Science Australian Defence Force Academy UNSW. "Visualisation techniques for the computer simulation of bushfires in two dimensions." Awarded by:University of New South Wales - Australian Defence Force Academy. Dept. of Computer Science, 1992. http://handle.unsw.edu.au/1959.4/38721.

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This thesis examines techniques that provide a method of computer visualisation of bushfire spread. Existing techniques studied include, Kourtz & O???Regan, Green???s Contact, Heat Accumulation, Percolation modelling and Huygens??? Principle by Anderson et.al., French, Roberts, Richards. Many of these techniques are extended as part of a comprehensive study into how they perform in a two dimensional reference frame (ie over flat terrain only). New techniques are defined for Percolation Modelling and Huygens??? Principle. Each technique is examined in a series of test cases which include compu

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40

Assanis, Dennis N. "A computer simulation of the turbocharged turocompounded diesel engine system for studies of low heat rejection engine performance." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15089.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1986.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.<br>Bibliography: leaves 135-140.<br>by Dionissios Nikolaou Assanis.<br>Ph.D.

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Shojae, Ghias Masoumeh. "Numerical simulations of coupled groundwater flow and heat transport incorporating freeze/thaw cycles and phase change in a continuous permafrost environment." Doctoral thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/27693.

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Dans les régions nordiques, l’une des conséquences du réchauffement climatique est le dégel du pergélisol. En plus de favoriser la libération de quantités importantes de méthane et de dioxyde de carbone dans l’atmosphère, le dégel du pergélisol entraînera une modification des conditions hydrologiques locales et régionales, affectant ainsi les écosystèmes. Ce dégel pourra aussi conduire à un affaissement des sols et endommager ainsi les infrastructures routières. Dans le cadre de cette étude, des simulations numériques couplant l’écoulement des eaux souterraines et le transport de chaleur ont é

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Taskin, Ertan M. "CFD simulation of transport and reaction in cylindrical catalyst particles." Link to electronic thesis, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-081507-135028/.

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Tansakul, Ampawan. "A 3-Dimensional Computer Simulation Model for Temperature Distribution Prediction in a Seafood Shipping Container." Diss., This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-06062008-144840/.

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Osborne, William F. "Influence of Heater Orientation on Fluctuations in Steady-state Nucleate Boiling." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/4958.

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In observations of steady-state nucleate boiling, fluctuations in the temperature and heat flux might initially appear to be completely random. However, it was shown that, for a vertically mounted platinum wire in liquid nitrogen, the fluctuations about the steady-state exhibit an average counterclockwise circulation when the heat flux is plotted versus the superheat temperature. An area associated with the average circulation was proposed as a numerical measure of stability for steady-state nucleate boiling. The mechanisms for the generation of these fluctuations are thought to be the feedbac

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Vazquez, Diane Marie. "Experimental studies of the heat transfer characteristics of silica nanoparticle water-based dispersion in pool boiling using nichrome flat ribbons and wires." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4575.

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This work deals with a study of enhanced critical heat flux (CHF) and burnout heat flux (BHF) in pool boiling of water with suspended silica nanoparticles using ribbon-type and wire heaters. Previously our group and other researchers have reported three-digit percentage increase in critical heat flux in silica nanofluids. This study investigates the effect of various heater surface dimensions and cross-sectional shapes on pool boiling heat transfer characteristics of water and water-based nanofluids. CHF and BHF were analyzed for circular and rectangular cross-section nichrome wires and ribbon

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Wirnsberger, Peter. "Computer simulation and theoretical prediction of thermally induced polarisation." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/282988.

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In this thesis, we study the phenomenon of thermally induced polarisation using a combination of theory and computer simulation. Molecules of sufficiently low symmetry exhibit thermo-molecular orientation when subjected to a temperature gradient, leading to considerable electrostatic fields in polar liquids. Here, we first use non-equilibrium molecular dynamics simulations to study this interesting effect numerically. To this end, we propose an integration algorithm to impose a constant heat flux in simulations and show that it greatly improves energy conservation compared to a previous algori

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Lee, Chun-kwong, and 李振光. "Computer modelling and simulation of geothermal heat pump and ground-coupled liquid desiccant air conditioning systems in sub-tropicalregions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B41290768.

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Chen, Cuiren 1962. "Application of computer simulation and artificial intelligence technologies for modeling and optimization of food thermal processing." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37877.

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The major objective of this project was to evaluate the feasibility of artificial neural networks (ANNs) and genetic algorithms (GAs) for modeling and optimization of food thermal processing. The specific objectives were: (1) to develop a comprehensive computer simulation program for thermal processing, (2) to apply ANNs and GAs for modeling and optimization of constant retort temperature (CRT) thermal processing and variable retort temperature (VRT) thermal processing, (3) to develop dynamic models for thermal processing using ANNs, and (4) to explore ANN-model-based analysis of critical cont

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Lützow, Joel, and Cecilia Mikiver. "Simulation of airborne transmission of infection in a confined space using an agent-based model." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280336.

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As the world observes a new pandemic with COVID-19, it is clear that pathogens can spread rapidly and without recognition of borders. Outbreaks will continue to occur, and so the diseases’ transmission method must be thoroughly understood in order to minimize their impact. Some infections, such as influenza, tuberculosis and measles are known to be spread through droplets in the air. In a confined space the concentration can grow as more droplets are released. This study examined a simulated confined space modelled as a hospital waiting area, where people who could have underlying conditions c

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Lee, Chun-kwong. "Computer modelling and simulation of geothermal heat pump and ground-coupled liquid desiccant air conditioning systems in sub-tropical regions." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B41290768.

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