標題: Enhancement of forced convection heat transfer in a three-dimensional laminar channel flow with insertion of a moving block
作者: Fu, Wu-Shung
Huang, Jieh-Chau
Li, Chung-Gang
機械工程學系
Department of Mechanical Engineering
關鍵字: Forced convection;Channel flow;Compressible flow;Immersed boundary;Moving boundary
公開日期: 1-九月-2010
摘要: Enhancement of heat transfer rate of a heat surface in a three-dimensional channel flow with insertion of a moving slender block is investigated numerically. A slender block is installed along the direction of the channel flow, and the movement of the slender block is in periodic motion and transverse to the channel flow. Due to the interaction between the channel flow and slender block moving, a large circulation vertical to the channel flow is induced and follows the moving slender block closely. The behaviors of the slender block and circulation destroy and suppress the velocity and thermal boundary layers on the heat surface periodically. These phenomena first observed cause the heat transfer rate of the heat surface to be enhanced especially in the downstream of the heat surface. The maximum magnitude of enhancement in this study is about 50%. (C) 2010 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.05.007
http://hdl.handle.net/11536/32230
ISSN: 0017-9310
DOI: 10.1016/j.ijheatmasstransfer.2010.05.007
期刊: INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume: 53
Issue: 19-20
起始頁: 3887
結束頁: 3897
顯示於類別:期刊論文


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