航空学报 > 1994, Vol. 15 Issue (9): 1032-1036

水平同心旋转套筒内的混合对流

张朝民1, 袁修干1, 过增元2   

  1. 1. 北京航空航天大学505教研室,北京,100083;2. 清华大学工程力学系,北京,100084
  • 收稿日期:1993-06-14 修回日期:1993-11-08 出版日期:1994-09-25 发布日期:1994-09-25

MIXED CONVECTION IN A HORIZONTAL ROTATING ANNULUS

Zhang Chaomin1, Yuan Xiugan1, Guo Zengyuan2   

  1. Faculty 505 of Beijing University of Aeronautics and Astronautics,Beijing,00083;Department of Mechanical Engineering,Tsinghua University,Beijins,100084
  • Received:1993-06-14 Revised:1993-11-08 Online:1994-09-25 Published:1994-09-25

摘要: 用数值模拟法研究了水平同心套筒内、外筒加热旋转时的流动和传热特性,提出了旋转流抑制自然对流的物理机制,进一步验证了对流换热可比拟为具有内热源的导热问题。

关键词: 混合对流, 自然对流, 旋转流

Abstract: A numerical investigation of the flow and heat transfer of air in the annulus be-tween horizontal concentric cylinders with one cylinder heated and rotating is carried out.The mechanism of the suppression of natural convection by fluid rotation is advanced.It is proved that the convection heat transfer can be regarded as a conduction problem with heat sources(orsinks).

Key words: mixed convection, natural convection, rotating flow

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