Interaction of Radiation and Turbulent Natural Convection: A Pseudo-Direct Numerical Study; Advances in Applied Mathematics and Mechanics; Vol. XX, No. X

Interaction of Radiation and Turbulent Natural Convection: A Pseudo-Direct Numerical Study; Advances in Applied Mathematics and Mechanics; Vol. XX, No. X

Bibliographic Details
Parent link:	Advances in Applied Mathematics and Mechanics Vol. XX, No. X.— 2022.— [20 p.]
Main Author:	Nee A. E. Aleksandr Eduardovich
Corporate Author:	Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Other Authors:	Chamkha A. J. Ali
Summary:	Title screen This paper presents a hybrid lattice Boltzmann solver for turbulentbuoyancy-driven flow coupled with surface thermal radiation. The two-relaxation time scheme for the Boltzmann equation combined with the implicit finite difference scheme for the energy equation is implemented to compute the heat transfer and fluid flow characteristics. The accuracy and robustness of the hybrid approach proposed in this study are assessed in terms of the numerical and experimental data of other researchers. Upon performing the simulation, the Rayleigh number is ranged from 108 to 1010 whereas the surface emissivity is changed from zero to unity. During computations, it is found that the overall temperature of the cavity is increased as a result of enhancing the surface radiation. Convective plumes are formed both at the isothermal and the thermally-insulated walls with the Ra=109 and e=0.6. In the conditions under study, the overall heat transfer rate is raised by around 5% when taking into account the surface thermal radiation.
Language:	English
Published:	2022
Subjects:	электронный ресурс труды учёных ТПУ pseudo-direct numerical simulation surface radiation hybrid lattice Boltzmann scheme turbulent natural convection конвекция численное моделирование излучение
Online Access:	https://doc.global-sci.org/uploads/online_news/AAMM/867d52587b86b2b875e7525a40433af5.pdf
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668263

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