ONSET OF NATURAL-CONVECTION IN A CUBE

被引：37

作者：

HILLER, WJ ^{[1
]}

KOCH, S ^{[1
]}

KOWALEWSKI, TA ^{[1
]}

STELLA, F ^{[1
]}

机构：

[1] UNIV ROMA LA SAPIENZA,I-00184 ROME,ITALY

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1993年 / 36卷 / 13期

关键词：

D O I：

10.1016/0017-9310(93)90008-T

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The problem of transient natural convection in a cube-shaped cavity is investigated experimentally and numerically. The motion is driven by a sudden temperature difference applied to two opposite side walls of the vessel. The experiments are performed at a Rayleigh number of 1.66 x 10(5) and a Prandtl number of 1109, inside a 5 x 5 x 5 cm3 cavity made of Plexiglas, with two isothermal copper walls kept at a prescribed temperature. Numerical simulation has been performed using a finite difference vorticity velocity model of the Navier-Stokes equation with the Boussinesq approximation. The theoretical predictions are found to be in good agreement with the experimental results.

引用

页码：3251 / 3263

页数：13

共 17 条

[1] ON UNSTEADY FREE-CONVECTION IN VERTICAL SLOTS DUE TO PRESCRIBED FLUXES OF HEAT OR MASS AT THE VERTICAL WALLS [J].