Relevant bibliographies by topics / Radiation heat flow

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Radiation heat flow'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Radiation heat flow"

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Nia, M. Foruzan, and S. A. Gandjalikhan Nassab. "Conjugate Heat Transfer Study of Combined Radiation and Forced Convection Turbulent Separated Flow." International Journal of Nonlinear Sciences and Numerical Simulation 18, no. 1 (2017): 29–39. http://dx.doi.org/10.1515/ijnsns-2015-0134.

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AbstractIn the current study, a numerical investigation of two-dimensional combined convection-radiation heat transfer of turbulent gas flow over a backward-facing step (BFS) in a horizontal rectangular duct is presented. The computational domain contains two different parts including gas flow and solid element that makes the problem as a conjugate one. The gas phase is considered to be a radiating media that can absorb, emit and scatter thermal radiation, where in solid phase, heat transfer takes place by conduction. The set of governing equations for gas flow is solved numerically using the CFD technique and the $$k - \varepsilon $$ model is employed for computation of turbulence fluctuations. To evaluate the radiative term in the gas energy equation, the radiative transfer equation (RTE) is solved by the discrete ordinates method (DOM). Inside the solid phase, the conduction equation is solved to obtain the temperature distribution. The effects of conduction ratio, optical thickness, radiation-conduction parameter and albedo coefficient on heat transfer behavior of the system are carried out.
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Ansaria, Amir, and Nassaba Gandjalikhan. "Forced convection of radiating gas over an inclined backward facing step using the blocked-off method." Thermal Science 17, no. 3 (2013): 773–86. http://dx.doi.org/10.2298/tsci110112132a.

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The present work investigates the laminar forced convection flow of a radiating gas over an inclined backward facing step (BFS) in a horizontal duct. The momentum and energy equations are solved numerically by the CFD techniques to obtain the velocity and temperature fields. Since, the twodimensional Cartesian coordinate system is used to solve the governing equations; the flow over inclined surface is simulated by considering the blocked-off region in regular grid. Discretized forms of the governing equations in the (x,y) plane are obtained by the control volume method and solved using the SIMPLE algorithm. The fluid is treated as a gray, absorbing, emitting and scattering medium. Therefore, all of the convection, conduction and radiation heat transfer mechanisms take place simultaneously in the gas flow. For computation of the radiative term in the gas energy equation, the radiative transfer equation (RTE) is solved numerically by the discrete ordinates method (DOM) to find the radiative heat flux distribution inside the radiating medium. In the numerical results, effects of inclination angle, optical thickness, scattering albedo and the radiation-conduction parameter on the heat transfer behavior of the convection flow are investigated. This research work is a new one in which a combined convection-radiation thermal system with a complex flow geometry is simulate by efficient numerical techniques.
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GHOSH, S., R. FRIEDRICH, M. PFITZNER, CHR STEMMER, B. CUENOT, and M. EL HAFI. "Effects of radiative heat transfer on the structure of turbulent supersonic channel flow." Journal of Fluid Mechanics 677 (April 15, 2011): 417–44. http://dx.doi.org/10.1017/jfm.2011.92.

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The interaction between turbulence in a minimal supersonic channel and radiative heat transfer is studied using large-eddy simulation. The working fluid is pure water vapour with temperature-dependent specific heats and molecular transport coefficients. Its line spectra properties are represented with a statistical narrow-band correlated-k model. A grey gas model is also tested. The parallel no-slip channel walls are treated as black surfaces concerning thermal radiation and are kept at a constant temperature of 1000 K. Simulations have been performed for different optical thicknesses (based on the Planck mean absorption coefficient) and different Mach numbers. Results for the mean flow variables, Reynolds stresses and certain terms of their transport equations indicate that thermal radiation effects counteract compressibility (Mach number) effects. An analysis of the total energy balance reveals the importance of radiative heat transfer, compared to the turbulent and mean molecular heat transport.
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Cheng, S. C., and C. Nguyen. "Radiation heat transfer in dispersed droplet flow." International Communications in Heat and Mass Transfer 16, no. 4 (1989): 501–12. http://dx.doi.org/10.1016/0735-1933(89)90054-7.

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Golkarfard, Vahid, Seyyed Abdolreza Gandjalikhan Nassab, and Amir Babak Ansari. "Simulation of Solid Particles in Combined Conduction, Convection and Radiation Gas Flow over a Backward-Facing Step in a Duct." Applied Mechanics and Materials 110-116 (October 2011): 5276–82. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.5276.

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A numerical simulation procedure for studying deposition of aerosol particles in a laminar convection flow of radiating gas over a backward-facing step including the effect of thermal force is developed. In the gas flow, all of the heat transfer mechanisms consisting of conduction, convection and radiation take place simultaneously. Behavior of solid particles is studied numerically based on an Eulerian–Lagrangian method. Two dimensional Navier-Stokes and energy equations are solved using CFD techniques, while the radiating transfer equation (RTE) is solved by discrete ordinate method (DOM) for calculating radiative heat flux distribution. The objective of this research is to study the effect of Reynolds number variation and also radiation on thermophoretic deposition of particles. Numerical results show a decrease in deposition percent by increasing in Reynolds number and the radiation effect is negligible. The results are compared with the existing experimental and numerical data and good agreement is found.
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Moein Addini, M., and S. A. Gandjalikhan Nassab. "Combined Mixed Convection and Radiation Heat Transfer in an Obstacle Wall Mounted Lid-driven Cavity." International Journal of Nonlinear Sciences and Numerical Simulation 17, no. 6 (2016): 277–89. http://dx.doi.org/10.1515/ijnsns-2015-0095.

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AbstractThis paper presents a numerical investigation for laminar mixed convection flow of a radiating gas in a lid-driven cavity with a rectangular-shaped obstacle attached on the bottom wall. The vertical walls of the square cavity are assumed to be adiabatic, while other walls of cavity and obstacle are kept at constant temperature. The fluid is treated as a gray, absorbing, emitting and scattering medium. The governing differential equations consisting the continuity, momentum and energy are solved numerically by the computational fluid dynamics techniques to obtain the velocity and temperature fields. Discretized forms of these equations are obtained by the finite volume method and solved using the SIMPLE algorithm. Since the gas is considered as a radiating medium, besides convection and conduction, radiative heat transfer also takes place in the gas flow. For computation of the radiative term in the gas energy equation, the radiative transfer equation is solved numerically by the discrete ordinate method. The streamline and isotherm plots and the distributions of convective, radiative and total Nusselt numbers along the bottom wall of cavity are presented. The effects of Richardson number, obstacle location, radiation–conduction parameter, optical thickness and albedo coefficient on the flow and temperature distributions are carried out. Comparison between the present numerical results with those obtained by other investigators in the cases of conduction–radiation and pure convection systems shows good consistencies.
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Vicquelin, R., Y. F. Zhang, O. Gicquel, and J. Taine. "Effects of radiation in turbulent channel flow: analysis of coupled direct numerical simulations." Journal of Fluid Mechanics 753 (July 25, 2014): 360–401. http://dx.doi.org/10.1017/jfm.2014.368.

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AbstractThe role of radiative energy transfer in turbulent boundary layers is carefully analysed, focusing on the effect on temperature fluctuations and turbulent heat flux. The study is based on direct numerical simulations (DNS) of channel flows with hot and cold walls coupled to a Monte-Carlo method to compute the field of radiative power. In the conditions studied, the structure of the boundary layers is strongly modified by radiation. Temperature fluctuations and turbulent heat flux are reduced, and new radiative terms appear in their respective balance equations. It is shown that they counteract turbulence production terms. These effects are analysed under different conditions of Reynolds number and wall temperature. It is shown that collapsing of wall-scaled profiles is not efficient when radiation is considered. This drawback is corrected by the introduction of a radiation-based scaling. Finally, the significant impact of radiation on turbulent heat transfer is studied in terms of the turbulent Prandtl number. A model for this quantity, based on the new proposed scaling, is developed and validated.
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Atashafrooz, M., and SA Gandjalikhan Nassab. "Simulation of three-dimensional laminar forced convection flow of a radiating gas over an inclined backward-facing step in a duct under bleeding condition." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 2 (2012): 332–45. http://dx.doi.org/10.1177/0954406212447657.

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This study presents a numerical analysis of three-dimensional laminar forced convection flow of a radiating gas over an inclined backward-facing step in a rectangular duct under bleeding condition. The fluid is treated as a gray, absorbing, emitting, and scattering medium. The three-dimensional Cartesian coordinate system is used to solve the governing equations which are the conservations of mass, momentum, and energy. These equations are solved numerically using the computational fluid dynamic techniques to obtain the temperature and velocity fields, while the blocked-off method is employed to simulate the incline surface. Discretized forms of these equations are obtained by the finite volume method and solved using the SIMPLE algorithm. Since the gas is considered as a radiating medium, besides the convective and conductive terms in the energy equation, the radiative term also presented. For computation of this term, the radiative transfer equation is solved numerically by the discrete ordinates method to find the divergence of radiative heat flux distribution inside the radiating medium. By this numerical procedure, the role of radiation heat transfer on convection flow of a radiating gas which has many engineering applications (for example in heat exchangers and combustion chambers) is studied in detail. Beside, the effects of bleeding coefficient, albedo coefficient, optical thickness, and the radiation–conduction parameter on heat transfer behavior of the system are investigated. Comparison of numerical results with the available data published in the open literature shows a good agreement.
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Liu, Yong Jun, Dong Wang, and Xing Tao Ma. "Algorithm and Program for Simulating Heat Transfer in Cavities of Structural Members under Fire Conditions." Applied Mechanics and Materials 90-93 (September 2011): 3227–33. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.3227.

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In this paper, an algorithm based on the network method suggested by Oppenheim for calculating the radiative heat flow in a cavity of structural members, say hollow core concrete slabs, exposed to fires is presented. It is assumed that the pressure in a cavity keeps atmospheric pressure through the whole cause of a fire, and the lost heat from the air due to expansion and immediate moving away from a cavity is neglected. The heat in a cavity is transfer via both heat conduction in air and thermal radiation among boundaries, and special regard is paid to modeling heat transfer by radiation. The effective radiative heat flow system of equations is derived and expressed in matrix form. The system of equations features a symmetric coefficient matrix, which can be stored in a one dimensional array, and can be solved using LDLT factorization. Node radiative thermal loads are calculated from effective radiative heat flows at edges of elements located on internal cavities. The nonlinear finite element program TFIELD written by first author has employed the new algorithm. Temperature distribution in two structural members with cavities are calculated using TFIELD, and numerical results demonstrate that the new algorithm is very effective and is useful for further study of structural behavior of structural members under fire conditions.
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Mushtaq, Ammar, Junaid Khan, Meraj Mustafa, Tasawar Hayat, and Ahmed Alsaedi. "Consequences of convection-radiation interaction for magnetite-water nanofluid flow due to a moving plate." Thermal Science 22, no. 1 Part B (2018): 443–51. http://dx.doi.org/10.2298/tsci151128212m.

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Present paper examines the boundary-layer flow of magnetic nanofluid over a radiative plate moving in a uniform parallel free stream. Water is considered as the base fluid which is being filled with magnetite-Fe3O4 nanoparticles. Energy balance equation is formulated with non-linear radiation heat flux. Mathematical analysis is carried out through the famous Tiwari and Das model. Similarity approach is utilized to construct self-similar form of the governing differential system. Numerical computations are made through standard shooting method. Ferrofluid velocity is predicted to enhance upon increasing the nanoparticle volume fraction which contradicts with the available literature for non-magnetic nanofluids. It is found that Fe3O4-water ferrofluid has superior heat transfer coefficient than pure water. Results reveal that consideration of magnetic nanoparticles in water leads to better absorption of incident solar radiations. The well-known Blasius and Sakiadis flows are also explicitly analyzed from the present model.
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Dissertations / Theses on the topic "Radiation heat flow"

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Zhou, En. "The use of FLUENT for heat flow studies of the hot-wire chemical vapor deposition system to determine the temperatures reached at the growing layer surface." Thesis, University of the Western Cape, 2009. http://hdl.handle.net/11394/1705.

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Magister Scientiae - MSc<br>The overall aim of this project is to study the heat transfer inside the reaction chamber of the Hot-Wire Chemical Vapor Deposition (HWCVD) system with a commercial software package FLUENT6.3; it is one of the most popular Computational Fluid Dynamics solvers for complex flows ranging from incompressible to mildly compressible to even highly compressible flows. The wealth of physical models in FLUENT allows us to accurately predict laminar and turbulent flows, various modes of heat transfer, chemical reactions, multiphase flows and other phenomena with complete mesh flexibility and solution-based mesh adaptation. In this study the 3-D HWCVD geometry was measured and created in GAMBIT which then generates a mesh model of the reaction chamber for the calculation in FLUENT. The gas flow in this study was characterized as the steady and incompressible fluid flow due to the small Mach number and assumptions made to simplify the complexity of the physical geometry. This thesis illustrates the setups and solutions of the 3-D geometry and the chemically reacting laminar and turbulent gas flow, wall surface reaction and heat transfer in the HWCVD deposition chamber.<br>South Africa
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Vondál, Jiří. "Computational Modeling of Turbulent Swirling Diffusion Flames." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-234149.

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Schopnost predikovat tepelné toky do stěn v oblasti spalování, konstrukce pecí a procesního průmyslu je velmi důležitá pro návrh těchto zařízení. Je to často klíčový požadavek pro pevnostní výpočty. Cílem této práce je proto získat kvalitní naměřená data na experimentálním zařízení a využít je pro validaci standardně využívaných modelů počítačového modelování turbulentního vířivého difúzního spalování zemního plynu. Experimentální měření bylo provedeno na vodou chlazené spalovací komoře průmyslových parametrů. Byly provedeny měření se pro dva výkony hořáku – 745 kW a 1120 kW. Z měření byla vyhodnocena data a odvozeno nastavení okrajových podmínek pro počítačovou simulaci. Některé okrajové podmínky bylo nutné získat prostřednictvím dalšího měření, nebo separátní počítačové simulace tak jako například pro emisivitu, a nebo teplotu stěny. Práce zahrnuje několik vlastnoručně vytvořených počítačových programů pro zpracování dat. Velmi dobrých výsledků bylo dosaženo při predikci tepelných toků pro nižší výkon hořáku, kde odchylky od naměřených hodnot nepřesáhly 0.2 % pro celkové odvedené teplo a 16 % pro lokální tepelný tok stěnou komory. Vyšší tepelný výkon však přinesl snížení přesnosti těchto predikcí z důvodů chybně určené turbulence. Proto se v závěru práce zaměřuje na predikce vířivého proudění za vířičem a identifikuje několik problematických míst v použitých modelech využívaných i v komerčních aplikacích.
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Králová, Martina. "Velkoplošné solární systémy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226008.

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Entering of thesis focuses on large-scale solar systems. Large solar-scale system will be used for heating water in public swimming pool. The pool is located in Brno - country. The pool is operated year-round. Great emphasis of the thesis is on the surface heat loss. Evaporation of water from the water surface is also applied in the experimental part of the thesis. In the calculations is used software for modeling the thermal microclimate of buildings and air conditioning design Teruna.
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Lu, Xijia. "An Applied Numerical Simulation of Entrained-Flow Coal Gasification with Improved Sub-models." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1696.

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The United States holds the world's largest estimated reserves of coal and is also a net exporter of it. Coal gasification provides a cleaner way to utilize coal than directly burning it. Gasification is an incomplete oxidation process that converts various carbon-based feedstocks into clean synthetic gas (syngas), which can be used to produce electricity and mechanical power with significantly reduced emissions. Syngas can also be used as feedstock for making chemicals and various materials. A Computational Fluid Dynamics (CFD) scheme has been used to simulate the gasification process for many years. However, many sub-models still need to be developed and improved. The objective of this study is to use the improved CFD modeling to understand the thermal-flow behavior and the gasification process and to provide guidance in the design of more efficient and cheaper gasifiers. Fundamental research has been conducted to improve the gasification sub-models associated with the volatile thermal cracking, water-gas-shift (WGS) reaction, radiation effect, low-rank-coal gasification, coal to synthetic-natural-gas (SNG), and ash deposition mechanisms. The improved volatile thermal cracking model includes H2S and COS contents. A new empirical WGS reaction model is developed by matching the result with experimental data. A new coal demoisturization model is developed for evaporating the inherent moisture inside the coal particles during low-rank-coal gasification. An ash deposition model has also been developed. Moreover, the effect of different radiation models on the simulated result has been investigated, and the appropriate models are recommended. Some improved model tests are performed to help modify an industrial entrained-flow gasifier. A two-stage oxygen feeding scheme and a unique water quench design are investigated. For the two-stage oxygen feeding design, both experimental data and CFD predictions verify that it is feasible to reduce the peak temperature and achieve a more uniform temperature distribution in the gasifier by controlling the injection scheme without changing the composition and production rate of the syngas. Furthermore, the CFD simulation can acceptably approximate the thermal-flow and reaction behaviors in the coal gasification process, which can then be used as a preliminary screening tool for improving existing gasifiers’ performance and designing new gasifiers.
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Zajíček, Václav. "Vytápění bytového domu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392215.

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The thesis is composed of three parts - theoretical, computational and a project part. The theoretical part deals with heat sharing through conduction, flow and radiation. The computational part is focused on the overall calculation of the heating system to operate smoothly and reliably. Three gas condensing boilers are designed as a source of heat. The heating of the water is solved as a reservoir. It's source of heat is one gas condensation boiler. The project part contains a technical report and the project documentation on the stage of the implementation dossier.
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Druet, Pierre-Etienne. "Analysis of a coupled system of partial differential equations modeling the interaction between melt flow, global heat transfer and applied magnetic fields in crystal growth." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2009. http://dx.doi.org/10.18452/15893.

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Hauptthema der Dissertation ist die Analysis eines nichtlinearen, gekoppelten Systems partieller Differentialgleichungen (PDG), das in der Modellierung der Kristallzüchtung aus der Schmelze mit Magnetfeldern vorkommt. Die zu beschreibenden Phenomäne sind einerseits der im elektromagnetisch geheizten Schmelzofen erfolgende Wärmetransport (Wärmeleitung, -konvektion und -strahlung), und andererseits die Bewegung der Halbleiterschmelze unter dem Einfluss der thermischen Konvektion und der angewendeten elektromagnetischen Kräfte. Das Modell besteht aus den Navier-Stokeschen Gleichungen für eine inkompressible Newtonsche Flüssigkeit, aus der Wärmeleitungsgleichung und aus der elektrotechnischen Näherung des Maxwellschen Systems. Wir erörtern die schwache Formulierung dieses PDG Systems, und wir stellen ein Anfang-Randwertproblem auf, das die Komplexität der Anwendung widerspiegelt. Die Hauptfrage unserer Untersuchung ist die Wohlgestelltheit dieses Problems, sowohl im stationären als auch im zeitabhängigen Fall. Wir zeigen die Existenz schwacher Lösungen in geometrischen Situationen, in welchen unstetige Materialeigenschaften und nichtglatte Trennfläche auftreten dürfen, und für allgemeine Daten. In der Lösung zum zeitabhängigen Problem tritt ein Defektmaß auf, das ausser der Flüssigkeit im Rand der elektrisch leitenden Materialien konzentriert bleibt. Da eine globale Abschätzung der im Strahlungshohlraum ausgestrahlten Wärme auch fehlt, rührt ein Teil dieses Defektmaßes von der nichtlokalen Strahlung her. Die Eindeutigkeit der schwachen Lösung erhalten wir nur unter verstärkten Annahmen: die Kleinheit der gegebenen elektrischen Leistung im stationären Fall, und die Regularität der Lösung im zeitabhängigen Fall. Regularitätseigenschaften wie die Beschränktheit der Temperatur werden, wenn auch nur in vereinfachten Situationen, hergeleitet: glatte Materialtrennfläche und Temperaturunabhängige Koeffiziente im Fall einer stationären Analysis, und entkoppeltes, zeitharmonisches Maxwell für das transiente Problem.<br>The present PhD thesis is devoted to the analysis of a coupled system of nonlinear partial differential equations (PDE), that arises in the modeling of crystal growth from the melt in magnetic fields. The phenomena described by the model are mainly the heat-transfer processes (by conduction, convection and radiation) taking place in a high-temperatures furnace heated electromagnetically, and the motion of a semiconducting melted material subject to buoyancy and applied electromagnetic forces. The model consists of the Navier-Stokes equations for a newtonian incompressible liquid, coupled to the heat equation and the low-frequency approximation of Maxwell''s equations. We propose a mathematical setting for this PDE system, we derive its weak formulation, and we formulate an (initial) boundary value problem that in the mean reflects the complexity of the real-life application. The well-posedness of this (initial) boundary value problem is the mainmatter of the investigation. We prove the existence of weak solutions allowing for general geometrical situations (discontinuous coefficients, nonsmooth material interfaces) and data, the most important requirement being only that the injected electrical power remains finite. For the time-dependent problem, a defect measure appears in the solution, which apart from the fluid remains concentrated in the boundary of the electrical conductors. In the absence of a global estimate on the radiation emitted in the cavity, a part of the defect measure is due to the nonlocal radiation effects. The uniqueness of the weak solution is obtained only under reinforced assumptions: smallness of the input power in the stationary case, and regularity of the solution in the time-dependent case. Regularity properties, such as the boundedness of temperature are also derived, but only in simplified settings: smooth interfaces and temperature-independent coefficients in the case of a stationary analysis, and, additionally for the transient problem, decoupled time-harmonic Maxwell.
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Sena, Julio Cesar Lopes. "ESTUDO DAS COMPONENTES DO BALANÇO DE ENERGIA EM UMA CULTURA DE ARROZ IRRIGADO NO SUL DO BRASIL." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/10266.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This dissertation presents a study on the experimental site of Cachoeira do Sul-RS, Brazil. The objective of this study was to estimate the components of the Energy Balance Closure on the surface of a rice paddy field. The research was divided into three periods: I-dry soil, not irrigated and low vegetation, remaining from the last rice harvest, II - irrigated soil in which the area was being prepared for planting pre-germinated rice, and period III - irrigated soil already planted with rice and at reproductive phase. Also, we performed measurements of leaf area index, rice height and monitoring of the water level on the field. Temperature measurements at the water level on the crop were used to estimate the energy flow through this order to improve the EBC. For data acquisition, were used temperature sensors in the soil, heat flux plate, net radiation sensor, wind speed and direction and infrared open path gas analyzer. The results showed that the sum of the components Energy Balance Closure are not equivalent to the available energy in the surface, and the surface energy imbalance is influenced by the surface coverage.<br>Esta dissertação de mestrado apresenta um estudo realizado no sítio experimental de Cachoeira do Sul-RS, Brasil. O objetivo deste trabalho foi de estimar as componentes do Fechamento do Balanço de Energia (FBE) na superfície de uma lavoura de arroz irrigado. A pesquisa foi dividida em três períodos: I-solo seco, em que o solo apresentava-se não irrigado e com vegetação baixa, restante da última colheita do arroz, II - solo irrigado, em que a superfície estava sendo preparada para a plantação de arroz pré-germinado e período III - solo irrigado com o arroz já plantado e em fase reprodutiva. Também foram realizadas medidas do índice de área foliar, altura do arroz e acompanhamento do nível de água sobre a lavoura. Medidas de temperatura na lâmina de água sobre a lavoura foram utilizadas para estimar o fluxo de energia através desta objetivando melhorar o FBE. Para a aquisição de dados utilizou-se sensores de temperatura no solo, fluxímetro de solo, sensor de radiação líquida, sensor de direção e velocidade do vento e analisador de gás por infravermelho de caminho aberto. Os resultados mostraram que a soma das componentes do FBE, não equivale a radiação líquida disponível na superfície e que o desequilíbrio energético é influenciado pelo tipo de cobertura da superfície.
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Endo, Makoto. "Numerical modeling of flame spread over spherical solid fuel under low speed flow in microgravity:Model development and comparison to space flight experiments." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1461022358.

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Vaníček, Jan. "Termomechanický model pneumatiky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445170.

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This diploma thesis is about thermomechanics of passenger car tires. The research part dealing with existing tire models is followed by the practical part. The practical part is based on the designs of thermomechanical models. The first model determines a dependence of temperature on the air pressure inside a tire when a temperature changes. The second thermomechanical model captures all the heat fluxes which affect a tire while a vehicle is in motion. The third thermomechanical model calculates temperatures of parts of the tire during driving tests. All models are programmed in MATLAB.
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MacKay, Robert Malcolm. "The Oregon Graduate Institute one dimensional time-dependent radiative convective model : theory and application /." Full text open access at:, 1990. http://content.ohsu.edu/u?/etd,202.

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Books on the topic "Radiation heat flow"

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1923-, Zhukauskas A. A., ed. Radiation and combined heat transfer in channels. Hemisphere Pub., 1987.

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2

F, Nogotov E., and Trofimov V. P, eds. Radiative heat transfer in two-phase media. CRC Press, 1993.

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Adzerikho, K. S. Radiat͡s︡ionnyĭ teploobmen v dvukhfaznykh sredakh. "Nauka i tekhnika", 1987.

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Beddini, Robert A. Analysis of turbulent convective and radiative heat transfer in high temperature rocket chamber flows. AIAA, 1987.

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Delil, A. A. M. Considerations concerning a thermal joint for a deployable or steerable battery radiator for the Columbus Polar Platform. National Aerospace Laboratory, 1986.

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6

Price, Joseph M., d. 1868. and Langley Research Center, eds. Direct simulation of AFE forebody and wake flow with thermal radiation. National Aeronautics and Space Administration, Langley Research Center, 1989.

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Predicting radiative heat transfer in thermochemical nonequilibrium flow fields: Theory and user's manual for the LORAN code. National Aeronautics and Space Administration, Langley Research Center, 1994.

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8

S, Tʻien James, and United States. National Aeronautics and Space Administration., eds. Numerical computation of flame spread over a thin solid in forced concurrent flow with gas-phase radiation. National Aeronautics and Space Administration, 1994.

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9

Clarke, Andrew. Energy flow in organisms. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199551668.003.0004.

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An organism is an open thermodynamic system exchanging both energy and materials with its environment. Organisms exchange energy with their environment by radiation, conduction, convection and evaporation of water. The relative importance of these varies with the organism and its situation. Newton’s Law of Cooling is a simplification that is useful only for warm endotherms in a still, cool environment. For all other circumstances a full biophysical treatment is necessary. Flows of chemical potential energy can be captured by a balanced energy budget. A full description of the energy balance of an organism requires the coupling of a biophysical model of heat flow with an energy budget model. This combination provides a powerful tool for modelling the thermal and energetic niches of organisms, and to predict how these might change in the future.
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Li, Tong, Greenberg Paul S, and United States. National Aeronautics and Space Administration., eds. Measurements and modeling of soot formation and radiation in microgravity jet diffusion flames. National Aeronautics and Space Administration, 1996.

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Book chapters on the topic "Radiation heat flow"

1

Levenspiel, Octave. "The Three Mechanisms of Heat Transfer: Conduction, Convection, and Radiation." In Engineering Flow and Heat Exchange. Springer US, 2014. http://dx.doi.org/10.1007/978-1-4899-7454-9_9.

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Mondal, S., P. Konar, T. R. Mahapatra, and P. Sibanda. "MHD Boundary Layer Liquid Metal Flow in the Presence of Thermal Radiation Using Non-similar Solution." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_38.

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Srinivasacharya, D., and P. Jagadeeshwar. "Effect of Chemical Reaction and Thermal Radiation on the Flow over an Exponentially Stretching Sheet with Convective Thermal Condition." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_30.

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Arundhati, V., K. V. Chandra Sekhar, D. R. V. Prasada Rao, and G. Sreedevi. "Thermal Radiation and Thermodiffusion Effect on Convective Heat and Mass Transfer Flow of a Rotating Nanofluid in a Vertical Channel." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_10.

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Rajakumar, K. V. B., K. S. Balamurugan, Ch V. Ramana Murthy, and N. Ranganath. "Radiation, Dissipation, and Dufour Effects on MHD Free Convection Flow Through a Vertical Oscillatory Porous Plate with Ion Slip Current." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_67.

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Deepthi, J., and D. R. V. Prasada Rao. "Combined Influence of Radiation Absorption and Hall Current on MHD Free Convective Heat and Mass Transfer Flow Past a Stretching Sheet." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_16.

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Sankad, G. C., and Ishwar Maharudrappa. "Boundary Layer Flow and Heat Transfer of Casson Fluid Over a Porous Linear Stretching Sheet with Variable Wall Temperature and Radiation." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_20.

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RamReddy, Ch, and T. Pradeepa. "Effects of MHD and Radiation on Chemically Reacting Newtonian Fluid Flow over an Inclined Porous Stretching Surface Embedded in Porous Medium." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_64.

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Jain, Shalini, and Amit Parmar. "Radiation Effect on MHD Williamson Fluid Flow over Stretching Cylinder Through Porous Medium with Heat Source." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5329-0_5.

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Hassan, Anthony R., Jacob A. Gbadeyan, and Sulyman O. Salawu. "The Effects of Thermal Radiation on a Reactive Hydromagnetic Internal Heat Generating Fluid Flow Through Parallel Porous Plates." In Springer Proceedings in Mathematics & Statistics. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99719-3_17.

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Conference papers on the topic "Radiation heat flow"

1

Shang, Joseph, and S. Surzhikov. "Nonequilibrium Radiation Heat Transfer in Hypersonic Flow." In 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference. American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-2258.

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Liesche, Georg, and Kai Sundmacher. "Conduction-Convection-Radiation Heat Transfer in High Temperature Catalytic Reactors." In International Conference of Fluid Flow, Heat and Mass Transfer. Avestia Publishing, 2018. http://dx.doi.org/10.11159/ffhmt18.131.

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Zhu, Qunzhi, Bowei Yao, and Quan Sun. "NUMERICAL SIMULATION ON FLOW AND HEAT TRANSFER CHARACTERISTICS OF METHANE CARBON MIXTURE FLOW UNDER CONCENTRATED SOLAR RADIATION." In International Heat Transfer Conference 16. Begellhouse, 2018. http://dx.doi.org/10.1615/ihtc16.nee.024168.

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Akbar, M. K., and S. M. Ghiaasiaan. "Radiation Heat Transfer and Soot Thermophoresis in Laminar Tube Flow." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56686.

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The transport of soot particles suspended in laminar hot gas, flowing in a tube, was numerically modeled and parametrically studied. The objective was to assess the coupled effects of radiation heat transfer and thermophoresis on the soot particle transport in hot-walled tubes. The wall material was assumed to be transparent to radiation for wavelengths shorter than a threshold wavelength at high temperatures, an essential property of high temperature resistive materials. The results indicated that, as a consequence of strongly-coupled thermal radiation transport and thermophoresis, a radially-nonuniform temperature profile develops as the distance from the tube inlet is increased. Furthermore, the soot particles move towards the tube centerline due to thermophoresis, leading to the development of a sharp radial soot concentration profile. The pace of the development of the nonuniform radial temperature and soot concentration profiles is sensitive to several parameters. Reduction in soot particle size, higher average soot concentration, and higher tube wall temperature all promote the development of sharp radial profiles.
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NACOUZI, GEORGE, and DONALD EDWARDS. "The effects of radiation on film cooling in a particle-laden flow." In 28th National Heat Transfer Conference. American Institute of Aeronautics and Astronautics, 1992. http://dx.doi.org/10.2514/6.1992-4063.

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Saidi, M. H., A. Ghafourian, M. Kargar, and M. Faisal. "Swirl Flow Effects on Heat Release/Luminous Radiation in a Vortex Engine." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98364.

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Radiation heat transfer as an important phenomenon in combustion applications is an interesting subject for scientists and combustion researchers. Heat release and luminous radiative transfer phenomena in an experimental vortex engine are compared with a similar axial flow type engine. A detector sensitive to emission from C2* excited radically is utilized for the measurement of chemiluminescence emission at the centerline of chamber along all axial positions. The filtered photographs of flame are used to compare total C2* emission from flame. Mixtures of Propane and Butane with air enriched by oxygen are used as fuel and oxidizer. The effects of equivalence ratio and oxidizer mass flow rate are investigated as well.
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Darbandi, Masoud, Mohammad Bagher Barezban, and Gerry Schneider. "Assessment of SLW model in 3D non-gray gas radiation calculation." In THE 6th NTERNATIONAL CONFERENCE ON FLUID FLOW, HEAT AND MASS TRANSFER. Avestia Publishing, 2019. http://dx.doi.org/10.11159/ffhmt19.132.

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Yener, Yaman, and T. M. Fong. "RADIATION AND FORCED CONVECTION INTERACTION IN THERMALLY-DEVELOPING LAMINAR FLOW THROUGH A CIRCULAR PIPE." In International Heat Transfer Conference 8. Begellhouse, 1986. http://dx.doi.org/10.1615/ihtc8.4230.

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Seo, Taebeom, Michael K. Jensen, and Deborah A. Kaminski. "COMBINED CONVECTION AND NON-GRAY RADIATION IN SIMULTANEOUSLY DEVELOPING TURBULENT FLOW AND HEAT TRANSFER." In International Heat Transfer Conference 11. Begellhouse, 1998. http://dx.doi.org/10.1615/ihtc11.4340.

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Alekseev, M. V., F. N. Voronin, and E. B. Savenkov. "The model of radiation-induced heat flow in heterogeneous porous materials." In PROCEEDINGS OF THE ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES. Author(s), 2018. http://dx.doi.org/10.1063/1.5083246.

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Reports on the topic "Radiation heat flow"

1

Taborek, Peter. Nanoscale Heat Transfer Due to Near Field Radiation and Nanofluidic Flows. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ada625941.

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