Non-linear approximations for natural convection in a horizontal annulus

被引：12

作者：

Duka, Bejo

Ferrario, Carlo

Passerini, Arianna

Piva, Stefano

机构：

[1] Univ Ferrara, Dipartimento Ingn, I-44100 Ferrara, Italy

[2] Univ Tirana, Dept Phys, Fac Sci, Tirana, Albania

[3] Univ Ferrara, Dipartimento Fis & Sez INFN, I-44100 Ferrara, Italy

来源：

INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS | 2007年 / 42卷 / 09期

关键词：

Oberbeck-Boussinesq approximation; natural convection; Nusselt number; CONCENTRIC CYLINDERS; FLOW;

D O I：

10.1016/j.ijnonlinmec.2007.05.006

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Two different problems are proposed as approximations of the usual system modelling natural convection under the Oberbeck-Boussinesq assumptions. The error is evaluated by means of the norm of its gradient in the Hilbert space. The average Nusselt number is also estimated. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1055 / 1061

页数：7

共 10 条

[1]

[Anonymous], 1998, Am. Soc. Mech. Eng. Heat Transf. Div. HTD

[2]

FERRARIO C, 2007, IN PRESS NONLINEAR A

[3]

Galdi P., 1994, INTRO MATH THEORY NA

[4] EXPERIMENTAL AND THEORETICAL-STUDY OF NATURAL-CONVECTION IN ANNULUS BETWEEN HORIZONTAL CONCENTRIC CYLINDERS [J].