CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2009, Vol. 26 ›› Issue (5): 685-692.

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Flow Heat Transfer Integrated Method Overcoming Stiffness in Two-equation Turbulence Models

HU Haiyang, WANG Qiang   

  1. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2008-04-30 Revised:2008-08-28 Online:2009-09-25 Published:2009-09-25

Abstract: A integrated method solving fluid and solid simultaneously is used to deal with complicated flow and solid temperature field coupling problems.A simple but effective approach is proposed to overcome stiffness in two-equation turbulence models.Related theory is provided.With this method,efficiency in multigrids and LUSGS implicit temporal stepping method is increased remarkably.

Key words: flow heat transfer coupled, stiffness, two-equation turbulence models, multigrid

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