Modelling of the conjugate natural convection in a closed system with the radiant heating source radiant energy distribution by lambert's cosine law; Thermal Science; Vol. 22, iss. 1, pt. B

Modelling of the conjugate natural convection in a closed system with the radiant heating source radiant energy distribution by lambert's cosine law; Thermal Science; Vol. 22, iss. 1, pt. B

Dettagli Bibliografici
Parent link:	Thermal Science Vol. 22, iss. 1, pt. B.— 2018.— [P. 591-601]
Autore principale:	Kuznetsov G. V. Geny Vladimirovich
Ente Autore:	Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Altri autori:	Nee A. E. Aleksandr Eduardovich
Riassunto:	Title screen Various types of emitters are often used as energy sources in real engineering systems and technological processes. Investigations of heat transfer basic laws in such systems are of interest. We conducted mathematical modelling of conjugate heat transfer in a closed rectangular cavity under conditions of radiant energy source operating. The 2-D problem of conjugate natural convection in vorticity- -stream function-temperature dimensionless variables has been numerically solved by means of the finite difference method. Radiant energy distribution along the gaswall interfaces was set by Lamberts' cosine law. We obtained fields of temperature and stream functions in a wide range of governing parameters (Rayleigh number 104 ≤Ra ≤ 106 , the length of radiant heating source 0.15 ≤ D ≤ 0.6). Then we analyzed how heat retaining properties of finite thickness heat conducting walls made of different materials affect the heat transfer intensity. Differential characteristics distribution showed significant non-uniformity and non-stationarity of the conjugate heat transfer process under study.
Lingua:	inglese
Pubblicazione:	2018
Soggetti:	электронный ресурс труды учёных ТПУ infrared emitter natural convection conjugate heat transfer mathematical modelling Lambert's cosine law инфракрасные излучатели естественная конвекция сопряженный теплообмен математическое моделирование закон Ламберта
Accesso online:	https://doi.org/10.2298/TSCI160120256K
Natura:	MixedMaterials Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663994

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