FINITE-ELEMENT ANALYSIS OF LAMINAR NATURAL-CONVECTION IN CONFINED RECTANGULAR REGIMES EXTRAPOLATION TO ZERO ELEMENT SIZE

被引：9

作者：

OZOE, H ^{[1
]}

TAKEMOTO, M ^{[1
]}

CHURCHILL, SW ^{[1
]}

机构：

[1] UNIV PENN, DEPT CHEM ENGN, PHILADELPHIA, PA 19104 USA

来源：

NUMERICAL HEAT TRANSFER | 1986年 / 9卷 / 03期

关键词：

MATHEMATICAL TECHNIQUES - Finite Element Method;

D O I：

10.1080/10407788608913480

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Natural convection between horizontal plates heated from below was computed by using a finite-element method based on a second-order approximation, and the average Nusselt number was extrapolated to zero element size. This process of extrapolation was required to obtain good agreement with the experimental data. Same was confirmed for natural convection in a square channel heated on one sidewall and cooled from the opposing one. It was shown that extrapolation or the equivalent is essential to obtain reliable results even with high-order finite element formulations.

引用

页码：323 / 333

页数：11

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