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不同湍流模型对旋涡流动的数值模拟

冯喜平 赵胜海 李进贤 曹琪

冯喜平, 赵胜海, 李进贤, 曹琪. 不同湍流模型对旋涡流动的数值模拟[J]. 航空动力学报, 2011, 26(6): 1209-1214.
引用本文: 冯喜平, 赵胜海, 李进贤, 曹琪. 不同湍流模型对旋涡流动的数值模拟[J]. 航空动力学报, 2011, 26(6): 1209-1214.
FENG Xi-ping, ZHAO Sheng-hai, LI Jin-xian, CAO Qi. Numerical simulation of swirling flow with different turbulent models[J]. Journal of Aerospace Power, 2011, 26(6): 1209-1214.
Citation: FENG Xi-ping, ZHAO Sheng-hai, LI Jin-xian, CAO Qi. Numerical simulation of swirling flow with different turbulent models[J]. Journal of Aerospace Power, 2011, 26(6): 1209-1214.

不同湍流模型对旋涡流动的数值模拟

基金项目: 航天科技创新基金(重点支持项目)

Numerical simulation of swirling flow with different turbulent models

  • 摘要: 针对某型旋流器,基于Navier-Stokes方程,湍流模型分别选择renormalization group(RNG) k-ε 模型和Reynolds stress model(RSM)模型,采用计算流体动力学方法对旋流器内部旋流流场进行数值模拟,通过对计算结果的分析以及与试验结果的比较,进行了旋涡流动数值模拟中湍流模型的适应性研究.研究表明:由于RNG k-ε 模型建立于Boussinesq涡旋黏性假设基础上,无法考虑涡旋黏性的各向异性,也无法描述湍流能量转化为平均运动能量的传递过程,因此涡旋流动模拟结果与试验结果差别较大;而RSM模型能够克服上述问题,涡旋流动模拟结果与试验结果较为接近,模拟结果能反映出旋流的基本特征.RSM模型适用于旋涡流场的数值计算.

     

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出版历程
  • 收稿日期:  2010-05-10
  • 修回日期:  2010-11-26
  • 刊出日期:  2011-06-28

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