Documents disponibles écrits par cet auteur

Boundary control of temperature distribution in a rectangular functionally graded material plate / Hossein Rastgoftar in Journal of heat transfer, Vol. 133 N° 2 (Fevrier 2011) 

Public ISBD [article]  in Journal of heat transfer > Vol. 133 N° 2 (Fevrier 2011) . - pp. [021304/1-6] Titre : Boundary control of temperature distribution in a rectangular functionally graded material plate Type de document : texte imprimé Auteurs : Hossein Rastgoftar, Auteur ; Mohammad Eghtesad, Auteur ; Alireza Khayatian, Auteur Année de publication : 2011 Article en page(s) : pp. [021304/1-6] Note générale : Physique Langues : Anglais (eng) Mots-clés : Heat  conduction  Lyapunov  methods  Numerical  analysis  Partial  differential  equations  Specific  heat  Temperature  distribution  Thermal  conductivity Index. décimale : 536 Chaleur. Thermodynamique Résumé : In this paper, an analytical method and a partial differential equation based solution to control temperature distribution for functionally graded (FG) plates is introduced. For the rectangular FG plate under consideration, it is assumed that the material properties such as thermal conductivity, density, and specific heat capacity vary in the width direction, and the governing heat conduction equation of the plate is a second-order partial differential equation. Using Lyapunov's theorem, it is shown that by applying controlled heat flux through the boundary of the domain, the temperature distribution of the plate will approach a desired steady-state distribution. Numerical simulation is provided to verify the effectiveness of the proposed method such that by applying the boundary transient heat flux, in-domain distributed temperature converges to its desired steady-state temperature. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Boundary control of temperature distribution in a rectangular functionally graded material plate [texte imprimé] / Hossein Rastgoftar, Auteur ; Mohammad Eghtesad, Auteur ; Alireza Khayatian, Auteur . - 2011 . - pp. [021304/1-6]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 2 (Fevrier 2011) . - pp. [021304/1-6] Mots-clés : Heat  conduction  Lyapunov  methods  Numerical  analysis  Partial  differential  equations  Specific  heat  Temperature  distribution  Thermal  conductivity Index. décimale : 536 Chaleur. Thermodynamique Résumé : In this paper, an analytical method and a partial differential equation based solution to control temperature distribution for functionally graded (FG) plates is introduced. For the rectangular FG plate under consideration, it is assumed that the material properties such as thermal conductivity, density, and specific heat capacity vary in the width direction, and the governing heat conduction equation of the plate is a second-order partial differential equation. Using Lyapunov's theorem, it is shown that by applying controlled heat flux through the boundary of the domain, the temperature distribution of the plate will approach a desired steady-state distribution. Numerical simulation is provided to verify the effectiveness of the proposed method such that by applying the boundary transient heat flux, in-domain distributed temperature converges to its desired steady-state temperature. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]

Boundary control of temperature distribution in a spherical shell with spatially varying parameters / Hossein Rastgoftar in Journal of heat transfer, Vol. 134 N° 1 (Janvier 2012) 

Public ISBD [article]  in Journal of heat transfer > Vol. 134 N° 1 (Janvier 2012) . - 05 p. Titre : Boundary control of temperature distribution in a spherical shell with spatially varying parameters Type de document : texte imprimé Auteurs : Hossein Rastgoftar, Auteur ; Mohammad Eghtesad, Auteur ; Alireza Khayatian, Auteur Année de publication : 2012 Article en page(s) : 05 p. Note générale : Heat transfer Langues : Anglais (eng) Mots-clés : Heat  conduction  Lyapunov  methods  Numerical  analysis  Partial  differential  equations  Specific  heat  Temperature  distribution  Thermal  conductivity Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper presents a solution to the control (stabilization) problem of temperature distribution in spherical shells with spatially varying properties. The desired temperature distribution satisfies the steady-state heat conduction equation. For the spherical shell under consideration, it is assumed that material properties such as thermal conductivity, density, and specific heat capacity may vary in radial, polar, and azimuthal directions of the spherical shell; the governing heat conduction equation of the shell is a second-order partial differential equation. Using Lyapunov's theorem, it is shown how to obtain boundary heat flux required for producing a desired steady-state distribution of the temperature. Finally, numerical simulation is provided to verify the effectiveness of the proposed method such that by applying the boundary transient heat flux, in-domain distributed temperature converges to its desired steady-state temperature. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000001 [...] [article] Boundary control of temperature distribution in a spherical shell with spatially varying parameters [texte imprimé] / Hossein Rastgoftar, Auteur ; Mohammad Eghtesad, Auteur ; Alireza Khayatian, Auteur . - 2012 . - 05 p. Heat transfer Langues : Anglais (eng) in Journal of heat transfer > Vol. 134 N° 1 (Janvier 2012) . - 05 p. Mots-clés : Heat  conduction  Lyapunov  methods  Numerical  analysis  Partial  differential  equations  Specific  heat  Temperature  distribution  Thermal  conductivity Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper presents a solution to the control (stabilization) problem of temperature distribution in spherical shells with spatially varying properties. The desired temperature distribution satisfies the steady-state heat conduction equation. For the spherical shell under consideration, it is assumed that material properties such as thermal conductivity, density, and specific heat capacity may vary in radial, polar, and azimuthal directions of the spherical shell; the governing heat conduction equation of the shell is a second-order partial differential equation. Using Lyapunov's theorem, it is shown how to obtain boundary heat flux required for producing a desired steady-state distribution of the temperature. Finally, numerical simulation is provided to verify the effectiveness of the proposed method such that by applying the boundary transient heat flux, in-domain distributed temperature converges to its desired steady-state temperature. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000001 [...]