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A STUDY ON THE RAPID PRESSURE-STRAIN RATE IN THE SECOND-MOMENT CLOSURE FOR TURBULENT FLOWS UNDERGOING STRONG COMPRESSIONS
Author(s): 
Pages: 651-656
Year: Issue:  6
Journal: Acta Mechanica Sinica

Keyword:  压力应变快速项 雷诺应力 压缩性 平均速度散度 快速畸变理论;
Abstract: 对压力应变快速项的五个模型作了压缩性修正,即在模型中引入了由于平均流可压而导入的不为零的平均速度散度,并把五个模型计算所得的雷诺应力各向异性张量分量、平均湍能及压力应变快速项的值与快速畸变理论的计算结果作了比较.结果表明,包含湍流应变史效应的线性模型可达到四阶非线性模型的精度.
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