平板混合层流动中两相脉动关联矩的大涡模拟

工程热物理学报 , 2004, 25(4): 609-612.

1.清华大学工程力学系,北京,100084

2.清华大学工程力学系,北京,100084

3.清华大学工程力学系,北京,100084

基金项目: 国家自然科学基金(10002009)

LARGE EDDY SIMULATION OF TURBULENCE MODULATION TERM IN MIXING LAYER TWO-PHASE FLOW

在气粒两相平板混合层流动中,对气相流动采用大涡模拟,对颗粒相流动采用轨道模拟,研究了两相脉动关联矩.由两相各自瞬时速度出发可以直接获得两相脉动关联矩的统计结果.模拟获得的颗粒相一阶矩、二阶矩以及两相脉动关联矩与实验结果定量符合,表明基于细观模拟是不通过模型获得和研究两相脉动关联矩的可行途径.

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