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Détail de l'indexation
536 : Chaleur. Thermodynamique
536.05
536.2 Conduction, transmission de la chaleur. Conduction thermique, transmission thermique
536.24 Conduction d'un milieu à un autre. Transfert de chaleur. Echange. Transmission thermique
536.4 Action de la chaleur,de la température,sur les corps,sur les volumes ou sur leur structure.
536.5 Température. Echelles de température. Mesure et contrôle des températures. thermomètres. Thermométrie. Thermorégulation
536.6 Mesure de la quantité de chaleur. Calorimétrie
536.7 Thermodynamique. Energétique
536.7/621.4
536.2 Conduction, transmission de la chaleur. Conduction thermique, transmission thermique
536.24 Conduction d'un milieu à un autre. Transfert de chaleur. Echange. Transmission thermique
536.4 Action de la chaleur,de la température,sur les corps,sur les volumes ou sur leur structure.
536.5 Température. Echelles de température. Mesure et contrôle des températures. thermomètres. Thermométrie. Thermorégulation
536.6 Mesure de la quantité de chaleur. Calorimétrie
536.7 Thermodynamique. Energétique
536.7/621.4
Ouvrages de la bibliothèque en indexation 536
Affiner la rechercheAnalysis of bioheat transport through a dual layer biological media / Shadi Mahjoob in Journal of heat transfer, Vol. 132 N° 3 (Mars 2010)
[article]
in Journal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [031101-1/14]
Titre : Analysis of bioheat transport through a dual layer biological media Type de document : texte imprimé Auteurs : Shadi Mahjoob, Auteur ; Kambiz Vafai, Auteur Article en page(s) : pp. [031101-1/14] Note générale : Physique Langues : Anglais (eng) Mots-clés : Bioheat transfer Biological tissue/organ Hyperthermia Porous media Multilayer media Index. décimale : 536 Chaleur. Thermodynamique Résumé : A comprehensive analysis of bioheat transport through a double layer and multilayer biological media is presented in this work. Analytical solutions have been developed for blood and tissue phase temperatures and overall heat exchange correlations, incorporating thermal conduction in tissue and vascular system, blood-tissue convective heat exchange, metabolic heat generation, and imposed heat flux, utilizing both local thermal nonequilibrium and equilibrium models in porous media theory. Detailed solutions as well as Nusselt number distributions are given, for the first time, for two primary conditions, namely, isolated core region and uniform core temperature. The solutions incorporate the pertinent effective parameters for each layer, such as volume fraction of the vascular space, ratio of the blood, and the tissue matrix thermal conductivities, interfacial blood-tissue heat exchange, tissue/organ depth, arterial flow rate and temperature, body core temperature, imposed hyperthermia heat flux, metabolic heat generation, and blood physical properties. Interface temperature profiles are also obtained based on the continuity of temperature and heat flux through the interface and the physics of the problem. Comparisons between these analytical solutions and limiting cases from previous works display an excellent agreement. These analytical solutions establish a comprehensive presentation of bioheat transport, which can be used to clarify various physical phenomena as well as establishing a detailed benchmark for future works in this area.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Analysis of bioheat transport through a dual layer biological media [texte imprimé] / Shadi Mahjoob, Auteur ; Kambiz Vafai, Auteur . - pp. [031101-1/14].
Physique
Langues : Anglais (eng)
in Journal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [031101-1/14]
Mots-clés : Bioheat transfer Biological tissue/organ Hyperthermia Porous media Multilayer media Index. décimale : 536 Chaleur. Thermodynamique Résumé : A comprehensive analysis of bioheat transport through a double layer and multilayer biological media is presented in this work. Analytical solutions have been developed for blood and tissue phase temperatures and overall heat exchange correlations, incorporating thermal conduction in tissue and vascular system, blood-tissue convective heat exchange, metabolic heat generation, and imposed heat flux, utilizing both local thermal nonequilibrium and equilibrium models in porous media theory. Detailed solutions as well as Nusselt number distributions are given, for the first time, for two primary conditions, namely, isolated core region and uniform core temperature. The solutions incorporate the pertinent effective parameters for each layer, such as volume fraction of the vascular space, ratio of the blood, and the tissue matrix thermal conductivities, interfacial blood-tissue heat exchange, tissue/organ depth, arterial flow rate and temperature, body core temperature, imposed hyperthermia heat flux, metabolic heat generation, and blood physical properties. Interface temperature profiles are also obtained based on the continuity of temperature and heat flux through the interface and the physics of the problem. Comparisons between these analytical solutions and limiting cases from previous works display an excellent agreement. These analytical solutions establish a comprehensive presentation of bioheat transport, which can be used to clarify various physical phenomena as well as establishing a detailed benchmark for future works in this area.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] Analysis of heat transfer in consecutive variable cross-sectional domains / Shadi Mahjoob in Journal of heat transfer, Vol. 133 N° 1(N° Spécial) (Janvier 2011)
[article]
in Journal of heat transfer > Vol. 133 N° 1(N° Spécial) (Janvier 2011) . - pp. [011006/1-9]
Titre : Analysis of heat transfer in consecutive variable cross-sectional domains : applications in biological media and thermal management Type de document : texte imprimé Auteurs : Shadi Mahjoob, Auteur ; Kambiz Vafai, Auteur Année de publication : 2011 Article en page(s) : pp. [011006/1-9] Note générale : Physique Langues : Anglais (eng) Mots-clés : Bioheat Nonniform geometry Electronic and biomedical applications Variable area domain Porous media Index. décimale : 536 Chaleur. Thermodynamique Résumé : Temperature prescription and control is important within biological media and in bioheat transport applications such as in hyperthermia cancer treatment in which the unhealthy tissue/organ is subject to an imposed heat flux. Thermal transport investigation and optimization is also important in designing heat management devices and small-scale porous-filled-channels utilized in electronic and biomedical applications. In this work, biological media or the stated heat management devices with a nonuniform geometry are modeled analytically as a combination of convergent, uniform and/or divergent configurations. The biological media is represented as blood saturated porous tissue matrix while incorporating cells and interstices. Two primary models, namely, adiabatic and constant temperature boundary conditions, are employed and the local thermal nonequilibrium and an imposed heat flux are fully accounted for in the presented analytical expressions. Fluid and solid temperature distributions and Nusselt number correlations are derived analytically for variable cross-sectional domain represented by convergent, divergent, and uniform or any combination thereof of these geometries while also incorporating internal heat generation in fluid and/or solid. Our results indicate that the geometrical variations have a substantial impact on the temperature field within the domain and on the surface with an imposed heat flux. It is illustrated that, the temperature distribution within a region of interest can be controlled by a proper design of the multisectional domain as well as proper selection of the porous matrix. These comprehensive analytical solutions are presented for the first time, to the best of the authors' knowledge in literature.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Analysis of heat transfer in consecutive variable cross-sectional domains : applications in biological media and thermal management [texte imprimé] / Shadi Mahjoob, Auteur ; Kambiz Vafai, Auteur . - 2011 . - pp. [011006/1-9].
Physique
Langues : Anglais (eng)
in Journal of heat transfer > Vol. 133 N° 1(N° Spécial) (Janvier 2011) . - pp. [011006/1-9]
Mots-clés : Bioheat Nonniform geometry Electronic and biomedical applications Variable area domain Porous media Index. décimale : 536 Chaleur. Thermodynamique Résumé : Temperature prescription and control is important within biological media and in bioheat transport applications such as in hyperthermia cancer treatment in which the unhealthy tissue/organ is subject to an imposed heat flux. Thermal transport investigation and optimization is also important in designing heat management devices and small-scale porous-filled-channels utilized in electronic and biomedical applications. In this work, biological media or the stated heat management devices with a nonuniform geometry are modeled analytically as a combination of convergent, uniform and/or divergent configurations. The biological media is represented as blood saturated porous tissue matrix while incorporating cells and interstices. Two primary models, namely, adiabatic and constant temperature boundary conditions, are employed and the local thermal nonequilibrium and an imposed heat flux are fully accounted for in the presented analytical expressions. Fluid and solid temperature distributions and Nusselt number correlations are derived analytically for variable cross-sectional domain represented by convergent, divergent, and uniform or any combination thereof of these geometries while also incorporating internal heat generation in fluid and/or solid. Our results indicate that the geometrical variations have a substantial impact on the temperature field within the domain and on the surface with an imposed heat flux. It is illustrated that, the temperature distribution within a region of interest can be controlled by a proper design of the multisectional domain as well as proper selection of the porous matrix. These comprehensive analytical solutions are presented for the first time, to the best of the authors' knowledge in literature.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] Analysis of microheat pipes with axial conduction in the solid wall / Yew Mun Hung in Journal of heat transfer, Vol. 132 N° 7 (Juillet 2010)
[article]
in Journal of heat transfer > Vol. 132 N° 7 (Juillet 2010) . - pp. [071301-1/11]
Titre : Analysis of microheat pipes with axial conduction in the solid wall Type de document : texte imprimé Auteurs : Yew Mun Hung, Auteur ; Kek-Kiong Tio, Auteur Article en page(s) : pp. [071301-1/11] Note générale : Physique Langues : Anglais (eng) Mots-clés : Microheat pipe Axial conduction Solid wall Phase change Heat transport capacity Index. décimale : 536 Chaleur. Thermodynamique Résumé : A one-dimensional, steady-state model of a triangular microheat pipe (MHP) is developed, with the main purpose of investigating the thermal effects of the solid wall on the heat transport capacity of an MHP. The energy equation of the solid wall is solved analytically to obtain the axial temperature distribution, the average of which over the entire length of the MHP is simply its operating temperature. Next, the liquid phase is coupled with the solid wall by a heat transfer coefficient. Then, the continuity, momentum, and energy equations of the liquid and vapor phases are, together with the Young–Laplace equation, solved numerically to yield the heat and fluid flow characteristics of the MHP. The heat transport capacity and the associated optimal charge level of the working fluid are predicted for different operating conditions. Comparison between the models with and without a solid wall reveals that the presence of the solid wall induces a change in the phase change heat transport by the working fluid, besides facilitating axial heat conduction in the solid wall. The analysis also highlights the effects of the thickness and thermal conductivity of the solid wall on its axial temperature distribution. Finally, while the contribution of the thermal effects of the solid wall on the heat transport capacity of the MHP is usually not dominant, it is, nevertheless, not negligible either.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Analysis of microheat pipes with axial conduction in the solid wall [texte imprimé] / Yew Mun Hung, Auteur ; Kek-Kiong Tio, Auteur . - pp. [071301-1/11].
Physique
Langues : Anglais (eng)
in Journal of heat transfer > Vol. 132 N° 7 (Juillet 2010) . - pp. [071301-1/11]
Mots-clés : Microheat pipe Axial conduction Solid wall Phase change Heat transport capacity Index. décimale : 536 Chaleur. Thermodynamique Résumé : A one-dimensional, steady-state model of a triangular microheat pipe (MHP) is developed, with the main purpose of investigating the thermal effects of the solid wall on the heat transport capacity of an MHP. The energy equation of the solid wall is solved analytically to obtain the axial temperature distribution, the average of which over the entire length of the MHP is simply its operating temperature. Next, the liquid phase is coupled with the solid wall by a heat transfer coefficient. Then, the continuity, momentum, and energy equations of the liquid and vapor phases are, together with the Young–Laplace equation, solved numerically to yield the heat and fluid flow characteristics of the MHP. The heat transport capacity and the associated optimal charge level of the working fluid are predicted for different operating conditions. Comparison between the models with and without a solid wall reveals that the presence of the solid wall induces a change in the phase change heat transport by the working fluid, besides facilitating axial heat conduction in the solid wall. The analysis also highlights the effects of the thickness and thermal conductivity of the solid wall on its axial temperature distribution. Finally, while the contribution of the thermal effects of the solid wall on the heat transport capacity of the MHP is usually not dominant, it is, nevertheless, not negligible either.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] Analysis of radiation modeling for turbulent combustion / Damien Poitou in Journal of heat transfer, Vol. 133 N° 6 (Juin 2011)
[article]
in Journal of heat transfer > Vol. 133 N° 6 (Juin 2011) . - pp. [062701/1-10]
Titre : Analysis of radiation modeling for turbulent combustion : development of a methodology to couple turbulent combustion and radiative heat transfer in LES Type de document : texte imprimé Auteurs : Damien Poitou, Auteur ; Mouna El Hafi, Auteur ; Bénédicte Cuenot, Auteur Année de publication : 2011 Article en page(s) : pp. [062701/1-10] Note générale : Physique Langues : Anglais (eng) Mots-clés : Turbulent combustion Large eddy simulation Radiative transfer Spectral models Discrete ordinate method (DOM) Coupling Turbulence-radiation interaction (TRI) Index. décimale : 536 Chaleur. Thermodynamique Résumé : Radiation exchanges must be taken into account to improve large eddy simulation (LES) prediction of turbulent combustion, in particular, for wall heat fluxes. Because of its interaction with turbulence and its impact on the formation of polluting species, unsteady coupled calculations are required. This work constitutes a first step toward coupled LES-radiation simulations, selecting the optimal methodology based on systematic comparisons of accuracy and CPU cost. Radiation is solved with the discrete ordinate method (DOM) and different spectral models. To reach the best compromise between accuracy and CPU time, the performance of various spectral models and discretizations (angular, temporal, and spatial) is studied. It is shown that the use of a global spectral model combined with a mesh coarsening (compared with the LES mesh) and a minimal coupling frequency Nit allows to compute one radiative solution faster than Nit LES iterations while keeping a good accuracy. It also appears that the impact on accuracy of the angular discretization in the DOM is very small compared with the impact of the spectral model. The determined optimal methodology may be used to perform unsteady coupled calculations of turbulent combustion with radiation.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Analysis of radiation modeling for turbulent combustion : development of a methodology to couple turbulent combustion and radiative heat transfer in LES [texte imprimé] / Damien Poitou, Auteur ; Mouna El Hafi, Auteur ; Bénédicte Cuenot, Auteur . - 2011 . - pp. [062701/1-10].
Physique
Langues : Anglais (eng)
in Journal of heat transfer > Vol. 133 N° 6 (Juin 2011) . - pp. [062701/1-10]
Mots-clés : Turbulent combustion Large eddy simulation Radiative transfer Spectral models Discrete ordinate method (DOM) Coupling Turbulence-radiation interaction (TRI) Index. décimale : 536 Chaleur. Thermodynamique Résumé : Radiation exchanges must be taken into account to improve large eddy simulation (LES) prediction of turbulent combustion, in particular, for wall heat fluxes. Because of its interaction with turbulence and its impact on the formation of polluting species, unsteady coupled calculations are required. This work constitutes a first step toward coupled LES-radiation simulations, selecting the optimal methodology based on systematic comparisons of accuracy and CPU cost. Radiation is solved with the discrete ordinate method (DOM) and different spectral models. To reach the best compromise between accuracy and CPU time, the performance of various spectral models and discretizations (angular, temporal, and spatial) is studied. It is shown that the use of a global spectral model combined with a mesh coarsening (compared with the LES mesh) and a minimal coupling frequency Nit allows to compute one radiative solution faster than Nit LES iterations while keeping a good accuracy. It also appears that the impact on accuracy of the angular discretization in the DOM is very small compared with the impact of the spectral model. The determined optimal methodology may be used to perform unsteady coupled calculations of turbulent combustion with radiation.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] Analytical modeling of annular flow boiling heat transfer in mini- and microchannel heat sinks / A. Megahed in Journal of heat transfer, Vol. 132 N° 4 (n° spécial) (Avril 2010)
[article]
in Journal of heat transfer > Vol. 132 N° 4 (n° spécial) (Avril 2010) . - pp. [041012-1/11]
Titre : Analytical modeling of annular flow boiling heat transfer in mini- and microchannel heat sinks Type de document : texte imprimé Auteurs : A. Megahed, Auteur ; I. Hassan, Auteur Article en page(s) : pp. [041012-1/11] Note générale : Physique Langues : Anglais (eng) Mots-clés : Annular flow Two-phase flow Two-phase heat transfer coefficient Mini and microchannel heat sinks Index. décimale : 536 Chaleur. Thermodynamique Résumé : An analytical model is proposed to predict the flow boiling heat transfer coefficient in the annular flow regime in mini- and microchannel heat sinks based on the separated model. The modeling procedure includes a formulation for determining the heat transfer coefficient based on the wall shear stress and the local thermophysical characteristics of the fluid based on the Reynolds' analogy. The frictional and acceleration pressure gradients within the channel are incorporated into the present model to provide a better representation of the flow conditions. The model is validated against collected data sets from the literature produced by different authors under different experimental conditions, different fluids, and with mini- and microchannels of hydraulic diameters falling within the range of 92–1440 µm. The accuracy between the experimental and predicted results is achieved with a mean absolute error of 10%. The present analytical model can correctly predict the different trends of the heat transfer coefficient reported in the literature as a function of the exit quality. The predicted two-phase heat transfer coefficient is found to be very sensitive to changes in mass flux and saturation temperature. However, it is found to be mildly sensitive to the change in heat flux.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Analytical modeling of annular flow boiling heat transfer in mini- and microchannel heat sinks [texte imprimé] / A. Megahed, Auteur ; I. Hassan, Auteur . - pp. [041012-1/11].
Physique
Langues : Anglais (eng)
in Journal of heat transfer > Vol. 132 N° 4 (n° spécial) (Avril 2010) . - pp. [041012-1/11]
Mots-clés : Annular flow Two-phase flow Two-phase heat transfer coefficient Mini and microchannel heat sinks Index. décimale : 536 Chaleur. Thermodynamique Résumé : An analytical model is proposed to predict the flow boiling heat transfer coefficient in the annular flow regime in mini- and microchannel heat sinks based on the separated model. The modeling procedure includes a formulation for determining the heat transfer coefficient based on the wall shear stress and the local thermophysical characteristics of the fluid based on the Reynolds' analogy. The frictional and acceleration pressure gradients within the channel are incorporated into the present model to provide a better representation of the flow conditions. The model is validated against collected data sets from the literature produced by different authors under different experimental conditions, different fluids, and with mini- and microchannels of hydraulic diameters falling within the range of 92–1440 µm. The accuracy between the experimental and predicted results is achieved with a mean absolute error of 10%. The present analytical model can correctly predict the different trends of the heat transfer coefficient reported in the literature as a function of the exit quality. The predicted two-phase heat transfer coefficient is found to be very sensitive to changes in mass flux and saturation temperature. However, it is found to be mildly sensitive to the change in heat flux.
DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] Analytical solution for forced convection in a sector duct filled with a porous medium / Wang, C. Y. in Journal of heat transfer, Vol. 132 N° 8 (Août 2010)
PermalinkAnalytical solution for thermally fully developed combined electroosmotic and pressure-driven flows in narrow confinements with thick electrical double layers / Ranabir Dey in Journal of heat transfer, Vol. 133 N° 2 (Fevrier 2011)
PermalinkAnalytical solution to nonlinear thermal diffusion / Peter Vadasz in Journal of heat transfer, Vol. 132 N° 12 (Décembre 2010)
PermalinkAnalytical solution under two-flux approximation to radiative heat transfer in absorbing emitting and anisotropically scattering medium / Xin-Lin Xia in Journal of heat transfer, Vol. 132 N° 12 (Décembre 2010)
PermalinkAnalytical solutions for anisotropic heat conduction problems in a trimaterial with heat sources / Ming-Ho Shen in Journal of heat transfer, Vol. 132 N° 9 (Septembre 2010)
PermalinkAneExperimental study on heat transfer around two side-by-side closely arranged circular cylinders / Takayuki Tsutsui in Journal of heat transfer, Vol. 132 N° 11 (Novembre 2010)
PermalinkAnharmonic phonon interactions at interfaces and contributions to thermal boundary conductance / Patrick E. Hopkins in Journal of heat transfer, Vol. 133 N° 6 (Juin 2011)
PermalinkApplication of two Bayesian filters to estimate unknown heat fluxes in a natural convection problem / Marcelo J. Colaço in Journal of heat transfer, Vol 134 N° 9 (Septembre 2012)
PermalinkApproximation of transient 1D conduction in a finite domain using parametric fractional derivatives / Sergio M. Pineda in Journal of heat transfer, Vol. 133 N° 7 (Juillet 2011)
PermalinkBejan's constructal theory analysis of gas-liquid cooled finned modules / Giulio Lorenzini in Journal of heat transfer, Vol. 133 N° 7 (Juillet 2011)
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