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フルテキストURLKJ00004351136.pdf ( 1.4MB ) 公開日 2010-04-19
タイトルNumerical analysis of natural convection heat transfer in a square enclosure horizontally or vertically divided into fluid and porous regions
作成者Nishimura, Tatsuo
Kawamura, Yuji
Ozoe, Hiroyuki
作成者ヨミニシムラ, タツオ
カワムラ, ユウジ
オゾエ, ヒロユキ
作成者別表記西村, 龍夫
作成者所属山口大学工学部
内容記述(抄録等)This paper describes an analytical study of laminar natural convection heat transfer in a square enclosure horizontally or vertically divided into fluid and porous regions. The Navier-Stokes equation governs the fluid motion in the fluid region, while Brinkman's extension of Darcy's law is assumed to hold within the porous region. These equations are solved using the Galerkin finite element method in the range 10^3<Ra_f<10^5 and 10^<-3><Da<10^<-5>. The flow patterns are similar for horizontal and vertical divisions. There are two flow modes in the enclosure: circulation over the enclosure and circulation in the fluid region only. Although the flow penetration into the porous region is influenced substantially by the Rayleigh number and the Darcy number, the effect of the Darcy number is more significant. The magnitude of the flow penetration is found to be larger for the vertical division than for the horizontal division.
本文言語eng
主題工学
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
ISSN0386-3433
NCIDAA0086073X
学内刊行物(紀要等)Technology reports of the Yamaguchi University
掲載誌名Technology reports of the Yamaguchi University
4
5
開始ページ331
終了ページ344
発行日1991-12
著者版/出版社版出版社版
備考本文データは国立情報学研究所において電子化したものである
リポジトリIDKJ00004351136
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00004351136