Revisiting transition to chaos of air in a cubical cavity heated from one vertical side and cooled from the opposite side

Wen Chung Wu, Keh Chin Chang

研究成果: Conference contribution

摘要

The three-dimensional natural convection in a cubical cavity is revisited using the theoretical formulation without introducing the usual approximations. Particular interests are focused on the Rayleigh numbers ranging around transition to chaos, i.e. Ra=O(108). It is found that the Boussinesq approximation, which was commonly used in the study of natural convection, indeed leads to some noticeable errors in the investigated Ra Range. The errors stemmed from another common approximation of neglecting the viscous dissipation term in the energy equation are investigated too. Finally, evolution of the buoyancy-driven flow in a cubical cavity from transition to chaos is performed using the exact, three-dimensional formulation.

原文English
主出版物標題37th AIAA Thermophysics Conference
發行者American Institute of Aeronautics and Astronautics Inc.
ISBN(列印)9781624100352
DOIs
出版狀態Published - 2004
事件37th AIAA Thermophysics Conference 2004 - Portland, OR, United States
持續時間: 2004 六月 282004 七月 1

出版系列

名字37th AIAA Thermophysics Conference

Other

Other37th AIAA Thermophysics Conference 2004
國家/地區United States
城市Portland, OR
期間04-06-2804-07-01

All Science Journal Classification (ASJC) codes

  • 航空工程
  • 機械工業
  • 凝聚態物理學

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