標題: Numerical investigation of heat transfer from a heated oscillating cylinder in a cross flow
作者: Fu, WS
Tong, BH
機械工程學系
Department of Mechanical Engineering
關鍵字: force convection;ALE method;oscillating cylinder
公開日期: 1-Jul-2002
摘要: A numerical simulation is performed to study the flow structures and heat transfer characteristics of a heated transversely oscillating cylinder in a cross flow. The variations of flow and thermal fields are classified into a class of moving boundary problems. The moving interfaces between the fluid and cylinder have been considered. An arbitrary Lagrangian-Eulerian kinematic description method is adopted to describe the flow and thermal fields. A penalty consistent finite element formulation is applied to solve the governing equations. The subsequent developments of the vortex shedding and heat transfer characteristics around the heated cylinder are presented in detail. The effects of Reynolds number, oscillating amplitude, oscillating speed on the flow structures and heat transfer characteristics are examined. The results show that the interaction between the oscillating cylinder and vortex shedding from the cylinder dominates the state of the wake. The flow and thermal fields may approach a periodic state in lock-in regime. The heat transfer of the cylinder in the lock-in regime is enhanced remarkably. (C) 2002 Published by Elsevier Science Ltd.
URI: http://dx.doi.org/10.1016/S0017-9310(02)00016-9
http://hdl.handle.net/11536/28672
ISSN: 0017-9310
DOI: 10.1016/S0017-9310(02)00016-9
期刊: INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume: 45
Issue: 14
起始頁: 3033
結束頁: 3043
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