计算物理 ›› 2009, Vol. 26 ›› Issue (5): 685-692.

• 研究论文 • 上一篇    下一篇

一种能克服两方程湍流模型刚性的流热一体化算法

胡海洋, 王强   

  1. 北京航空航天大学能源与动力工程学院, 北京 100083
  • 收稿日期:2008-04-30 修回日期:2008-08-28 出版日期:2009-09-25 发布日期:2009-09-25
  • 作者简介:胡海洋(1981-),男,辽宁沈阳,博士生,从事计算流体力学方面的研究.

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

摘要: 使用流热一体化算法解决传统耦合算法难于处理的流场与固体温度场耦合计算问题.为保证其计算效率,提出一个简单有效的方法用以克服两方程湍流模型刚性.给出该方法的理论证明,并验证其配合多重网格提高LUSGS隐式时间推进法的计算效率.

关键词: 流热耦合, 刚性, 两方程模型, 多重网格

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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