A numerical study of three-dimensional natural convection in a horizontal porous annulus with Galerkin method
type: Item
instance of: scholarly article
title: A numerical study of three-dimensional natural convection in a horizontal porous annulus with Galerkin method
zbMATH Open document ID: 0669.76119
DOI: 10.1016/0017-9310(88)90128-7
author: Y. F. Rao
author: Kenji Fukuda
author: Shu Hasegawa
published in: International Journal of Heat and Mass Transfer
publication date: 1988-01-01T00:00:00Z
review text: A Galerkin scheme is developed to study the three-dimensional natural convection in a fluid-saturated porous annulus heated from the inner surface. In addition to the two-dimensional multiple solutions reported in the authors' previous paper, three-dimensional solutions are obtained; the secondary cells, with streaklines of the three-dimensionally closed co-axial double helices, are found extending along the axial direction in the top region of the annulus. This brings about an increased maximum local heat transfer coefficient, which consequently enhances overall heat transfer compared with that for the two-dimensional unicellular flow.
Mathematics Subject Classification ID: 76S05
Mathematics Subject Classification ID: 76R10
Mathematics Subject Classification ID: 76M99
zbMATH DE Number: 4097030
zbMATH Keywords: Galerkin method
zbMATH Keywords: three-dimensional natural convection
zbMATH Keywords: fluid-saturated porous annulus
zbMATH Keywords: two-dimensional multiple solutions
zbMATH Keywords: increased maximum local heat transfer coefficient
MaRDI profile type: Publication
full work available at URL: 0017-9310(88)90128-7
OpenAlex ID: W2089346657
description: scientific article; zbMATH DE number 4097030