Numerical study of turbulent natural convection in a cube having finite thickness heat-conducting walls; Heat and Mass Transfer; Vol. 51, iss. 11
| Parent link: | Heat and Mass Transfer Vol. 51, iss. 11.— 2015.— [P. 1559-1569] |
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| Shrnutí: | Title screen Three-dimensional transient natural convection in a cubic enclosure having finite thickness solid walls subject to opposing and horizontal temperature gradient has been investigated by a finite volume method. The turbulent flow considered into the volume is described mathematically by the 3D Reynolds averaged Navier-Stokes equations using the standard k-ε model with wall functions, including the energy equation. The velocity and temperature distributions were calculated at fixed Prandtl number, Pr = 0.7 and different values of the Rayleigh number, thermal conductivity ratio and dimensionless time. Three-dimensional velocity and temperature fields, temperature profiles at middle cross-sections and average Nusselt numbers have been presented. It has been found that an insertion of the third coordinate for the conjugate problem leads to a decrease in the average Nusselt number by 5.8 % in conditions of a stationary heat transfer mode. Режим доступа: по договору с организацией-держателем ресурса |
| Jazyk: | angličtina |
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2015
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| On-line přístup: | http://dx.doi.org/10.1007/s00231-015-1520-8 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648015 |