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高超声速压缩拐角湍流计算的收敛性分析

夏陈超 赵文文 陈丽华 陈伟芳

夏陈超, 赵文文, 陈丽华, 陈伟芳. 高超声速压缩拐角湍流计算的收敛性分析[J]. 航空动力学报, 2016, 31(2): 443-450. doi: 10.13224/j.cnki.jasp.2016.02.024
引用本文: 夏陈超, 赵文文, 陈丽华, 陈伟芳. 高超声速压缩拐角湍流计算的收敛性分析[J]. 航空动力学报, 2016, 31(2): 443-450. doi: 10.13224/j.cnki.jasp.2016.02.024
XIA Chen-chao, ZHAO Wen-wen, CHEN Li-hua, CHEN Wei-fang. Convergence analysis of hypersonic turbulent flow calculation at compression corner[J]. Journal of Aerospace Power, 2016, 31(2): 443-450. doi: 10.13224/j.cnki.jasp.2016.02.024
Citation: XIA Chen-chao, ZHAO Wen-wen, CHEN Li-hua, CHEN Wei-fang. Convergence analysis of hypersonic turbulent flow calculation at compression corner[J]. Journal of Aerospace Power, 2016, 31(2): 443-450. doi: 10.13224/j.cnki.jasp.2016.02.024

高超声速压缩拐角湍流计算的收敛性分析

doi: 10.13224/j.cnki.jasp.2016.02.024
基金项目: 

国家重点基础研究发展计划(2014CB340201)

详细信息
    作者简介:

    夏陈超(1989-),男,福建宁德人,博士生,主要从事湍流与转捩研究.

  • 中图分类号: V211.3

Convergence analysis of hypersonic turbulent flow calculation at compression corner

  • 摘要: 应用基于shear stress transport(SST)湍流模型的隐式紧耦合方法对高超声速压缩拐角流动进行了数值计算.考察了差分格式、限制器以及湍流时间步长等7个因素对湍流计算过程稳定性和收敛性的影响.结果表明:差分格式和限制器对收敛性有很大影响,总体而言耗散性越大的差分格式和限制器收敛性越好;增加湍流时间步长对收敛性影响很小;适当降低湍流变量最低限制值有利于湍流方程的收敛;增大Courant-Friedrichs-Lewy(CFL)数和隐式内迭代次数可显著加速收敛,但均存在最优值,超过最优值则加速效果不明显.

     

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出版历程
  • 收稿日期:  2014-06-04
  • 刊出日期:  2016-02-28

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