Forced convection heat transfer on a heated bottom surface of cavity with different wall-height |
| |
| Authors: | H Yamamoto N Seki S Fukusako |
| |
| Institution: | (1) Department of Mechanical Engineering, Asahikawa Technical College, 070 Asahikawa, Japan;(2) Department of Mechanical Engineering, Hokkaido University, 060 Sapporo, Japan |
| |
| Abstract: | Experiments to obtain the heat transfer characteristics of cavity, in which the downstream wall-heightD 2 was changed from zero toD 1 of upstream wall-height, have been performed. The vortex flow inside cavity was varied complicatedly depending on aspect-ratio of cavity and main flow velocity, and the flow pattern for cavity ofD 2/D 1=0.8 was altered entirely at theRe H of about 1.5×104. Three heat transfer regions ofNu m versusRe H were recognized for the cavity of large aspect-ratio. A close relation between those heat transfer behavior and approaching boundary layer flow was found. Heat transfer correlation was partially obtained for every cavities. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
