DSMC scheme for phonon transport in solid thin films / Mitsuhiro Matsumoto in Journal of heat transfer, Vol. 134 N° 5 (Mai 2012)  

Public ISBD [article]  inJournal of heat transfer > Vol. 134 N° 5 (Mai 2012) . - 07 p. Titre : DSMC scheme for phonon transport in solid thin films Type de document : texte imprimé Auteurs : Mitsuhiro Matsumoto, Auteur ; Masaya Okano, Auteur ; Yusuke Masao, Auteur Année de publication : 2012 Article en page(s) : 07 p. Note générale : heat transfer Langues : Anglais (eng) Mots-clés : phonon dynamics  thermal analysis  direct simulation Monte Carlo (DSMC) scheme Index. décimale : 536 Chaleur. Thermodynamique Résumé : Analysis of phonon dynamics based on a linearized Boltzmann transport equation is widely used for thermal analysis of solid thin films, but couplings among various phonon modes appear in some situations. We propose a direct simulation Monte Carlo (DSMC) scheme to simulate the phonon gas starting without the conventional linearization approximation. This requires no relaxation time as an input parameter, and we can investigate the couplings among phonons with different modes. A prototype code based on a simple phonon model was developed, and energy flux was evaluated for thin films of various thickness as a test calculation. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000005 [...] [article] DSMC scheme for phonon transport in solid thin films [texte imprimé] / Mitsuhiro Matsumoto, Auteur ; Masaya Okano, Auteur ; Yusuke Masao, Auteur . - 2012 . - 07 p. heat transfer Langues : Anglais (eng) in Journal of heat transfer > Vol. 134 N° 5 (Mai 2012) . - 07 p. Mots-clés : phonon dynamics  thermal analysis  direct simulation Monte Carlo (DSMC) scheme Index. décimale : 536 Chaleur. Thermodynamique Résumé : Analysis of phonon dynamics based on a linearized Boltzmann transport equation is widely used for thermal analysis of solid thin films, but couplings among various phonon modes appear in some situations. We propose a direct simulation Monte Carlo (DSMC) scheme to simulate the phonon gas starting without the conventional linearization approximation. This requires no relaxation time as an input parameter, and we can investigate the couplings among phonons with different modes. A prototype code based on a simple phonon model was developed, and energy flux was evaluated for thin films of various thickness as a test calculation. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000005 [...]

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