ASYMPTOTIC SOLUTION OF THE PROBLEM OF THE FREE-CONVECTION IN A SQUARE POROUS CAVITY HEATED FROM BELOW

被引：0

作者：

GRUNDMANN, M

MOJTABI, A

机构：

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE CHIMIE ASTRONOMIE | 1995年 / 321卷 / 10期

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D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Thermal convection through a saturated porous medium in a two-dimensional cavity heated from below is studied with the use of a regular perturbation expansion in terms of Darcy-Rayleigh number (Ra) using the bifurcation theory techniques. Terms up to order 34 are computed In particular, the Nusselt number (Nu) is expressed as a power series of Ra for the unicellular and multicellular flow. The above power series has, however, a limited radius of convergence, convergence. An estimation of this latter and a study of the character of the power series are used to extend its range of utility.

引用

页码：401 / 406

页数：6