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反映强流动曲率效应的非线性湍流模型

徐晶磊 马晖扬 黄于宁

徐晶磊, 马晖扬, 黄于宁. 反映强流动曲率效应的非线性湍流模型[J]. 应用数学和力学, 2008, 29(1): 27-37.
引用本文: 徐晶磊, 马晖扬, 黄于宁. 反映强流动曲率效应的非线性湍流模型[J]. 应用数学和力学, 2008, 29(1): 27-37.
XU Jing-lei, MA Hui-yang, HUANG Yu-ning. Nonlinear Turbulence Models That Predict Strong Curvature Effects[J]. Applied Mathematics and Mechanics, 2008, 29(1): 27-37.
Citation: XU Jing-lei, MA Hui-yang, HUANG Yu-ning. Nonlinear Turbulence Models That Predict Strong Curvature Effects[J]. Applied Mathematics and Mechanics, 2008, 29(1): 27-37.

反映强流动曲率效应的非线性湍流模型

详细信息
    作者简介:

    徐晶磊(1982- ),男,湖北钟祥人,博士(Tel:+86-10-88256133);马晖扬(1942- )(联系人.Tel:+86-10-88256133).

  • 中图分类号: O35

Nonlinear Turbulence Models That Predict Strong Curvature Effects

  • 摘要: 首先定性地分析了流线曲率效应对流场湍流结构的影响,然后以U型槽道流为典型算例,对多种湍流模型进行了评估.评估的模型包括:线性涡粘性模型,二阶和三阶非线性涡粘性模型,二阶显式代数应力模型和Reynolds应力模型.评估结果表明,性能良好的三阶非线性涡粘性模型,如黄于宁等人发展的HM模型以及CLS模型,可以较好地描述流线的曲率效应对湍流结构的影响,如凸曲率作用下内壁附近湍流强度的衰减和凹曲率作用下外壁附近湍流的增强,并且较好地确定了管道下游的分离点位置和分离泡长度,其预测的结果和实验符合较好,与Reynolds力模型的结果十分接近,因此可以较好地应用于具有曲率效应的工程湍流的计算.
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出版历程
  • 收稿日期:  2007-10-28
  • 修回日期:  2007-12-13
  • 刊出日期:  2008-01-15

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