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Dissertations / Theses on the topic 'Forced convection heat transfer'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2022

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1

Lee, Man. "Forced convection heat transfer in integrated microchannel heat sinks /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?MECH%202006%20LEE.

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2

Chick, Eric. "Problems in forced and free convection." Thesis, Keele University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241449.

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3

Alhamdan, Abdullah M. "Experimental studies on natural and forced convection around spherical and mushroom shaped particles." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1145369315.

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4

Thiele, Roman. "Prediction of forced convection heat transfer to Lead-Bismuth-Eutectic." Licentiate thesis, KTH, Reaktorteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-121983.

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The goal of this work is to investigate the capabilities of two different commercial codes, OpenFOAM and ANSYS CFX, to predict forced convection heat transfer in low Prandtl number fluids and investigate the sensitivity of these predictions to the type of code and to several input parameters.The goal of the work is accomplished by predicting forced convection heat transfer in two different experimental setups with the codes OpenFOAM and ANSYS CFX using three different turbulence models and varying the input parameters in an extensive sensitivity analysis. The computational results are compared

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5

Hama, Katsuhiko. "Film boiling heat transfer in various liquids under natural convection and forced convection conditions." Kyoto University, 2006. http://hdl.handle.net/2433/143793.

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6

Vijay, Dig. "Forced convective heat transfer through open cell foams." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-226330.

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The purpose of this study is to investigate forced convection of air through open cell foams. It can be numerically investigated either by implementing the time efficient macroscopic models or computationally expensive microscopic models. However, during the course of this study, it was observed that the macroscopic models are not sufficient for determining the desired key parameters. Nevertheless, it is still possible that these macroscopic models can be used to design an application accurately with minimum time efforts if the concerned key parameters are already known through other means. Ac

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7

Park, Do Seo. "Experimental and numerical study of laminar forced convection heat transfer for a dimpled heat sink." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1571.

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8

Kirez, Oguz. "A Numerical Forced Convection Heat Transfer Analysis Of Nanofluids Considering Performance Criteria." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615167/index.pdf.

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A nanofluid is a new heat transfer fluid produced by mixing a base fluid and solid nano sized particles. This fluid has great potential in heat transfer applications, because of its increased thermal conductivity and even increased Nusselt number due to higher thermal conductivity, Brownian motion of nanoparticles, and other various effects on heat transfer phenomenon. In this work, the first aim is to predict convective heat transfer of nanofluids. A numerical code is created and run to obtain results in a pipe with two different boundary conditions, constant wall temperature and constant wal

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9

Koski, Jennifer Rose. "Radiatively induced ignition of PMMA in the presence of forced convection." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/15886.

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10

Tough, M. C. "A heat transfer model of forced convection, cross flow heat exchangers used in space heating." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259171.

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11

Sun, Guang. "Heat transfer in forced convective flow boiling." Thesis, Imperial College London, 1996. http://hdl.handle.net/10044/1/11255.

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12

Thorpe, Roger. "Heat transfer by forced convection in beds of granular adsorbent material for solid sorption heat pumps." Thesis, University of Warwick, 1996. http://wrap.warwick.ac.uk/34618/.

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A novel adsorption cycle in which enhanced heat transfer between the adsorbent and external heat sinks and sources is achieved by forced convection of refrigerant gas through the adsorbent bed is presented This cycle is further developed by the use of inert beds to store the heat of desorption and sensible heat between phases. The performance and utility of such a cycle will depend on the heat transfer coefficients and pressure drops that result when the refrigerant gas is circulated through the beds The heat transfer and pressure drop characteristics of a bed of granular active carbon were in

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13

Ozerinc, Sezer. "Heat Transfer Enhancement With Nanofluids." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611862/index.pdf.

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A nanofluid is the suspension of nanoparticles in a base fluid. Nanofluids are promising for heat transfer enhancement due to their high thermal conductivity. Presently, discrepancy exists in nanofluid thermal conductivity data in the literature, and enhancement mechanisms have not been fully understood yet. In the first part of this study, a literature review of nanofluid thermal conductivity is performed. Experimental studies are discussed through the effects of some parameters such as particle volume fraction, particle size, and temperature on conductivity. Enhancement mechanisms of conduct

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14

Okamura, Takahiro. "Forced convection heat transfer of He 1 and He 2 up to supercritical pressures." Kyoto University, 2004. http://hdl.handle.net/2433/145258.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(エネルギー科学)<br>甲第11206号<br>エネ博第103号<br>新制||エネ||28(附属図書館)<br>22790<br>UT51-2004-T175<br>京都大学大学院エネルギー科学研究科エネルギー応用科学専攻<br>(主査)教授塩津正博, 教授宅田裕彦, 助教授白井康之<br>学位規則第4条第1項該当

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15

Youcef-Ali, Sabri. "Etude numérique et expérimentale des séchoirs solaires indirects à convection forcée : Application à la pomme de terre." Valenciennes, 2001. https://ged.uphf.fr/nuxeo/site/esupversions/7db5b7f1-e247-4d7f-9a14-5040200b9cb4.

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Nous avons développé un code de calcul permettant de simuler le comportement d'une chaine énergétique (insolateur-séchoir) fonctionnant en convection forcée pour des applications au séchage de produits agro-alimentaires. L’insolateur plan, relié à l'armoire de séchage, est à simple passe arrière, la veine d'air mobile pouvant être munie d'ailettes permettant d'améliorer les performances de ce capteur. Le séchoir est une armoire en bois comportant quatre grilles superposées, sur lesquelles le produit a séché et disposées en lits de rondelles. Dans le modèle théorique décrivant son comportement,

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16

Fritzgerald, Claire Louise. "Forced-convection condensation heat-transfer on horizontal integral-fin tubes including effects of liquid retention." Thesis, Queen Mary, University of London, 2011. http://qmro.qmul.ac.uk/xmlui/handle/123456789/2353.

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Accurate and repeatable heat-transfer data are reported for forced-convection filmwise condensation of steam and ethylene glycol flowing vertically downward over two single, horizontal instrumented integral-fin tubes and one plain tube. Vapour-side, heat-transfer coefficients were obtained by direct measurement of the tube wall temperature using specially manufactured, instrumented tubes with thermocouples embedded in the tube walls. Both tubes had fin height of 1.6 mm and fin root diameter of 12.7 mm, with fin thickness and spacing of 0.3 mm and 0.6 mm, respectively for the first tube and 0.5

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17

Diette, Christophe. "Measurement and analysis of forced convection phenomena in blade cooling channels." Valenciennes, 2003. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/c76547a4-820c-48f8-9717-ced740f0cb38.

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Dealing with gas turbine aircraft engines, the Turbine Entry Temperature (TET) is generally targeted as high as possible. Increasing this parameter leads to higher thermodynamic efficiency and power output and reduces the weight-to-thrust ratio and the Specific Fuel Consumption (SFC). Since the maximum permissible TET is determined by the temperature limitations of the turbine assembly, the choice of turbine material and the design of cooling systems applied to turbine blades are essential. This work reports both an experimental and numerical investigation on internal blade cooling cavities. V

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18

Lin, Kuan-Ting. "Experimental and Computational Study of Novel Plate-Fin-Surfaces for Enhancing Forced Convection Heat Transfer in Compact Heat Exchangers." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623166309984355.

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19

Bulliard-Sauret, Odin. "Étude expérimentale de l'Intensification des transferts thermiques par les ultrasons en convection forcée." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAI034/document.

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Le but de l'étude présentée dans ce mémoire de thèse est de caractériser localement l'intensification des transferts thermiques observée le long d'une plaque chauffante lorsqu'elle est soumise à des ultrasons. Ces derniers induisent des effets hydrodynamique dans les fluides qu'ils traversent. Premièrement, la cavitation acoustique, qui permet de produire de forts effets mécaniques dans les liquides. Viens ensuite le courant acoustique qui génère une écoulement convectif sous l'action d'une dissipation visqueuse de l’énergie acoustique. Ce travaille à permis de mettre en évidence la relation e

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20

Shahin, Gus A. "The effect of pulsating flow on forced convective heat transfer." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39881.pdf.

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21

Abuserwal, Ahmed. "Pressure drop and forced convective heat transfer in porous media." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/19512/.

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Metal foams, a new class of porous material with highly permeable structure and higher porosity (>0.60) compared with classical porous granular beds, are a viable solution to enlarge the thermal exchange area and provide a high heat capacity and high specific area. These metal foams are available in a number of solid materials with different porosities and pore size. There is a current lack of understanding regarding metal foam microstructure parameters’ effects on hydraulic and thermal parameters. This is a barrier to the design and implementation of various industrial applications. The curre

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22

Dehghannya, Jalal. "Mathematical modeling of airflow, heat and mass transfer during forced convection cooling of produce in ventilated packages." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115663.

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Forced convection cooling process is the most widely used method of cooling to extend shelf life of horticultural produce after harvest. However, heterogeneous cooling of produce inside different parts of ventilated packages is a serious problem. Therefore, it is essential to design packages that facilitate air circulation throughout the entire package to provide uniform cooling. Selection of appropriate combinations of air temperature and velocity for a given vent design is currently done largely by experimental trial and error approach. A more logical approach in designing new packages, to p

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23

Osborne, Rodney Layne. "An experimental determination of mixed and forced convection heat transfer coefficients in a modeled nuclear waste repository /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487759914762946.

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24

Ahn, Hee Seok. "Heat transfer enhancement in single-phase forced convection with blockages and in two-phase pool boiling with nano-structured surfaces." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5869.

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The first study researched turbulent forced convective heat (mass) transfer down- stream of blockages with round and elongated holes in a rectangular channel. The blockages and the channel had the same cross section, and a distance equal to twice the channel height separated consecutive blockages. Naphthalene sublimation experiments were conducted with four hole aspect ratios (hole-width-to-height ratios) and two hole-to-blockage area ratios (ratios of total hole cross-sectional area to blockage area). The effects of the hole aspect ratio, for each hole-to-blockage area ratio, on the local hea

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25

Mlcak, Justin Dale. "Simulation of three-dimensional laminar flow and heat transfer in an array of parallel microchannels." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1671.

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26

Van, der Merwe Nicola Mary. "Fully developed forced convection heat transfer and pressure drop in a smooth tube in the transitional flow regime." Diss., University of Pretoria, 2005. http://hdl.handle.net/2263/66251.

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Extensive work has been done on characterising convective heat transfer and pressure drop in smooth tubes in the laminar and turbulent flow regimes. However, little work was completed in the transitional flow regime. In all previous transitional studies, experiments that were conducted between the laminar and turbulent flow regimes were with mixed convection in the laminar flow regime and not in the forced convection flow regime. The secondary flow that occurs during mixed convection should most probably influence the characteristics in the transitional flow regime. It can therefore be expecte

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27

Roland, Jason Howard. "Forced Convection Over Flat and Curved Isothermal Surfaces with Unheated Starting Length." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1418343439.

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28

Astrouski, Ilya. "Polymeric Hollow Fiber Heat Exchanger Design." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-240499.

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This Ph.D. thesis is focused on theory and experimental investigations developing of new knowledge about polymeric hollow fiber heat exchanger (PHFHE). The state-of-the-art study of plastic heat exchangers shows that their usage is limited by several niches where their advantages significantly dominates, or where the use of non-plastic competitors is not impossible. On the other hand, plastic heat exchangers (and PHFHEs in particular) are devices of increasing interest. It is shown that use of small tubes (fibers) allows PHFHEs to be more competitive than conventional plastic heat exchangers.

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29

Wright, Lesley Mae. "Experimental investigation of turbine blade platform film cooling and rotational effect on trailing edge internal cooling." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1826.

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30

Watel, Barbara. "Etude des échanges convectifs sur un cylindre aileté en rotation, soumis a un courant d'air parallèle aux ailettes." Valenciennes, 1997. https://ged.uphf.fr/nuxeo/site/esupversions/29267151-660f-45b9-af69-34482a8dce42.

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L'évaluation expérimentale des échanges convectifs avec l'air est faite sur des ailettes circulaires d'un arbre en rotation à vitesse uniforme et soumises ou non à un courant d'air parallèle à leurs faces. Un banc d'essais a été conçu pour mesurer, par thermographie infrarouge, l'évolution temporelle des températures suivant un rayon d'une ailette durant son refroidissement, cette dernière ayant été préalablement chauffée. Une analyse théorique des phénomènes thermiques se produisant dans une ailette, en régime transitoire, permet de déterminer le coefficient d'échange moyen de celle-ci avec l

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31

Faust, Adriane (Adriane Jean) 1976. "Forced convective heat transfer to supercritical water in micro-rocket cooling passages." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9296.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2000.<br>Includes bibliographical references (p. 101-102).<br>An investigation of heat transfer to supercritical fluids in micro-channels was completed to assess the cooling characteristics of the MIT micro-rocket engine. Previous results from supercritical ethanol heat transfer tests were compared to water tests to establish a baseline for future fuel testing. Existing literature on supercritical heat transfer was also consulted to corroborate the water test results. It was found that the characterist

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32

Alves, Thiago Antonini. "Resfriamento conjugado de aquecedores discretos em canais." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264147.

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Orientador: Carlos Alberto Carrasco Altemani<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-16T09:22:29Z (GMT). No. of bitstreams: 1 Alves_ThiagoAntonini_D.pdf: 12931422 bytes, checksum: b3858d05581229381f7d14684d29e979 (MD5) Previous issue date: 2010<br>Resumo: A transferência de calor conjugada por convecção forçada e condução de três aquecedores 2D montados rentes ou protuberantes na placa inferior (substrato) de um canal de placas paralelas foi investigada numericamente em regime permanente. Uma taxa unifor

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33

Loiola, Bruna Rafaella 1987. "Resfriamento conjugado de aquecedores protuberantes em um duto retangular." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265971.

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Orientador: Carlos Alberto Carrasco Altemani<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-24T09:07:23Z (GMT). No. of bitstreams: 1 Loiola_BrunaRafaella_M.pdf: 2801156 bytes, checksum: 0bbef2296c5a3a938f63b6246554ab2d (MD5) Previous issue date: 2013<br>Resumo: A transferência de calor conjugada por convecção forçada-condução de dois aquecedores protuberantes montados na parede inferior (substrato) de um duto retangular foi investigada através de medidas experimentais em laboratório. Potência elétrica era

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34

Nelson, Ian Carl. "Characterization of thermo-physical properties and forced convective heat transfer of poly-alpha-olefin (PAO) nanofluids." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1569.

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35

Ahmed, Nisaar. "Thermo-fluid modelling of electrical generator frames under forced convection in an oscillating water column environment." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31363.

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This PhD involved computational fluid dynamic simulations of finned generators cooling under forced convection in an oscillating water column environment. Various design changes to the upstream Wells turbine and its effect on the consequent cooling of the generator were investigated. Simulations were run in steady-state to obtain an initial condition, thereafter, unsteady simulations revealed a steadying of heat transfer over the course of multiple blade rotation cycles. This justified the use of steady-state for the remaining simulations over a range of flow coefficients. The results revealed

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36

Gurer, Turker. "Numerical Investigation Of Incompressible Flow In Grooved Channels- Heat Transfer Enhancment By Self Sustained Oscillatins." Phd thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12604891/index.pdf.

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In this study, forced convection cooling of package of 2-D parallel boards with heat generating chips is investigated. The main objective of this study is to determine the optimal board-to-board spacing to maintain the temperature of the components below the allowable temperature limit and maximize the rate of heat transfer from parallel heat generating boards cooled by forced convection under constant pressure drop across the package. Constant heat flux and constant wall temperature boundary conditions on the chips are applied for laminar and turbulent flows. Finite elements method is used to

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37

Racine, Evan Michael. "Experimental Study - High Altitude Forced Convective Cooling of Electromechanical Actuation Systems." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1450286609.

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38

Bishara, Fady. "Numerical Simulation of Fully Developed Laminar Flow and Heat Transfer in Isothermal Helically Twisted Tubes with Elliptical Cross-Sections." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1291146958.

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39

Szabo, Peter Sebastian Benedek. "Heat transfer through thermomagnetic convection in magnetic fluids induced by varying magnetic fields." Thesis, Heriot-Watt University, 2017. http://hdl.handle.net/10399/3365.

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Magnetic fluid flow by thermomagnetic convection with and without buoyancy was studied in experiments and computational simulations. A mineral oil based ferro magnetic fluid was subjected to varying magnetic fields to induce thermomagnetic convection. As such fluids are mainly developed to increase heat transfer for cooling the fundamental effects on magnetic fluid flow was investigated using various magnetic field distributions. Computational simulations of natural and thermomagnetic convection are based on a Finite-Element technique and considered a constant magnetic field gradient, a realis

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40

Ren, Tieying. "An experimental study of the local mean and turbulent flow field affecting forced convection heat transfer for finned tubes in cross flow." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39872.pdf.

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41

Metwally, Hossam Eldin Mahmoud Hassan. "A computational study of enhanced laminar forced convection heat transfer to Newtonian and non-Newtonian fluid flows in sinusoidal corrugated-plate channels." Cincinnati, Ohio : University of Cincinnati, 2002. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1022762582.

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42

Hudjetz, Stefan. "Experimental investigation of heat exchange between thermal mass and room environments." Thesis, De Montfort University, 2012. http://hdl.handle.net/2086/9021.

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The different technologies of passive cooling concepts have to rely on a good thermal coupling between a building's thermal mass and indoor air. In many cases, the ceiling is the only surface remaining for a good coupling. Further research is necessary to investigate discrepancies between existing correlations. Therefore, the overall aim of the work described in this thesis is the investigation of heat transfer at a heated ceiling in an experimental chamber. Acoustic baffles obstruct the surface of the ceiling and impede heat transfer. However, there is nearly no published data about the effec

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43

Loosmann, Felix [Verfasser], Cameron [Akademischer Betreuer] Tropea, and Sanjeev [Akademischer Betreuer] Chandra. "Forced Convective Heat Transfer in Channels with Complex Internal Structures / Felix Loosmann ; Cameron Tropea, Sanjeev Chandra." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2019. http://d-nb.info/1194547796/34.

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44

Avelar, Ana Cristina. "Analise teorica e experimental da tranferencia de calor em placas de circuito impresso formando canais verticais abertos." [s.n.], 1997. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263433.

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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 2018-07-22T20:18:14Z (GMT). No. of bitstreams: 1 Avelar_AnaCristina_M.pdf: 5757345 bytes, checksum: ab66436b252ec7b8b48d4756dd9e7f42 (MD5) Previous issue date: 1997<br>Resumo: Os constantes avanços tecnológicos em eletrônica e informática tem tornado os sistemas eletrônicos cada vez mais compactos, aumentando-se a quantidade de calor a ser removida dos componentes e placas de circuito impresso. Por este motivo, atualmente são ex

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45

Kashani, Ali. "Forced convection heat transfer in He II." 1986. http://catalog.hathitrust.org/api/volumes/oclc/15340950.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1986.<br>Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 127-129).

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46

HUANG, YU-KAI, and 黃堉凱. "Parametric study of conjugate forced convection heat transfer." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/69688519881008495453.

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碩士<br>中華大學<br>機械工程學系<br>104<br>Conjugate heat transfer problem is solved by a differential algorithm based on the compressible Navier-Stokes equations and a heat conduction solver. A parametric study on the height of the block, thermal conductivity ratio, Prandtl number, and the shape of the top surface is investigated on the heat transfer characteristics. The effect of conjugate heat transfer is analyzed by the temperature contour, streamlines, velocity and temperature profiles, local surface temperature and Nusselt number distributions. The current numerical scheme provides a skill to handl

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47

Ting, Hsien-Hung, and 丁獻宏. "Heat Transfer Enhancement of Nanofluids in Forced Convection Flows." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/46472974674906633359.

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博士<br>崑山科技大學<br>機械與能源工程研究所<br>104<br>In recent years, much attention has been focused on the heat transfer characteristics of nanofluids in circular and non-circular tubes. However, few numerical results were compared with experimental literature, especially for non-circular ducts. The purpose of this study is to numerically investigate heat transfer enhancement of nanofluids in forced convection flows. The finite volume formulation is used with the semi-implicit method for pressure-linked equations (SIMPLE) algorithm to solve the discretized equations derived from the partial nonlinear differ

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48

Huang, I.-Chia, and 黃怡家. "Heat Transfer Characteristics of Aluminum Foam Metal in Forced Convection." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/10124773485512307993.

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碩士<br>國立臺灣大學<br>機械工程研究所<br>82<br>In this research, the heat transfer characteristics of aluminum foam metal was experimentally investigated in the wind tunnel. And the overall heat transfer coefficients are compared with some fins now used in applications.The employment of porous media could be considered as a alternative for traditional fins. This work examines the effects of different heat flux, velocity, pore structure, volume and different ratio of the channel height to the height of th

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Vijay, Dig. "Forced convective heat transfer through open cell foams." Doctoral thesis, 2016. https://tubaf.qucosa.de/id/qucosa%3A23120.

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The purpose of this study is to investigate forced convection of air through open cell foams. It can be numerically investigated either by implementing the time efficient macroscopic models or computationally expensive microscopic models. However, during the course of this study, it was observed that the macroscopic models are not sufficient for determining the desired key parameters. Nevertheless, it is still possible that these macroscopic models can be used to design an application accurately with minimum time efforts if the concerned key parameters are already known through other means. Ac

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Wu, Hsin-Hsuan, and 吳欣璇. "Heat Transfer Analysis of Plate-Type Fins in Natural and Forced Convection." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/30242742282517060512.

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博士<br>國立臺灣大學<br>機械工程學研究所<br>99<br>Two analytical models were used in this study to predict the performance of a plate-fin array heat sink in forced convection and natural convection cases respectively. The optimization of geometry variables for designing a plate-fin heat sink in both cases was also analyzed in this study. While the pressure drop of heat sink was fixed at 10 mmAq, and the height was fixed at 24 mm in forced convection situations, optimal values for fin spacing, base thickness, base width and base length were found. In natural convection situation, it was found that there are l

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