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Titolo: ON HYPERBOLIC HEATCONDUCTION AND THE 2ND LAW OF THERMODYNAMICS
Autore: BAI C; LAVINE AS;
 Indirizzi:
 YEUNGNAM UNIV,DEPT ENGN MECH KEUNGSAN SOUTH KOREA UNIV CALIF LOS ANGELES,DEPT MECH AEROSP & NUCL ENGN LOS ANGELES CA 90095
 Titolo Testata:
 Journal of heat transfer
fascicolo: 2,
volume: 117,
anno: 1995,
pagine: 256  263
 SICI:
 00221481(1995)117:2<256:OHHAT2>2.0.ZU;2K
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 2ND SOUND; WAVES;
 Keywords:
 CONDUCTION; THERMODYNAMICS AND 2NDLAW; TRANSIENT AND UNSTEADY HEAT TRANSFER;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Science Citation Index Expanded
 Science Citation Index Expanded
 Citazioni:
 12
 Recensione:
 Indirizzi per estratti:



 Citazione:
 C. Bai e A.S. Lavine, "ON HYPERBOLIC HEATCONDUCTION AND THE 2ND LAW OF THERMODYNAMICS", Journal of heat transfer, 117(2), 1995, pp. 256263
Abstract
For situations in which the speed of thermal propagation cannot be considered infinite a hyperbolic heat conduction equation is typically used to analyze the hear transfer. The conventional hyperbolic heat conduction equation is not consistent with the second law of thermodynamics, in the context of nonequilibrium rational thermodynamics. A modified hyperbolic type heat conduction equation, which is consistent with the second law of thermodynamics, is investigated in this paper. To solve this equation, we introduce a numerical scheme from the field of computational compressible pow. This scheme uses the characteristic properties of a hyperbolic equation and has no oscillation. By solving a model problem, we show that the conventional hyperbolic heat conduction equation call give physically wrong solutions (temperature less thanabsolute zero) under some conditions. The modified equation does not display these erroneous results. However, the difference between results of these two models is negligible except under extreme conditions.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 22:22:38