请登录 0 购物车
首页 图书 电子图书 期刊 参考文献及会议录 作者,编辑,审稿 A-Z 产品目录
Compact Heat Exchangers and Enhancement Technology for the Process Industries - 2003

ISBN 打印: 978-1-56700-195-2

PIV VISUALIZATIONS OF THE FLOW STRUCTURE UPSTREAM OF THE TUBES IN A TWO-ROW PLATE-FIN-AND-TUBE HEAT EXCHANGER

Abstract

The horseshoe vortex structure upstream of tubes in a two-row plate-fin-and-tube heat exchanger was visualized by means of a PIV system (Particle Image Velocimetry). The effect of the fin spacing and the flow velocity were both examined. Three fin spacings were tested for a Reynolds number, ReD, ranging from 280 to 1580. It was observed that the horseshoe vortex structure may form in one or two major vortices depending on the fin spacing and the flow velocity. Due to the development of the boundary layer on the fins, the horseshoe vortices upstream of the tubes of the second row are more noticeable than those upstream of the tubes of the first row.
首页 Begell Digital Portal Begell数据库 期刊 图书 电子图书 参考文献及会议录 作者,编辑,审稿 A-Z 产品目录 订购及政策 关于BegellHouse 联系我们 Language English 中文 Русский 日本語 Português Deutsch Français Español