空间发展平板混和层流动的大涡模拟-3D与2D模拟的比较

工程热物理学报 , 2004, 25(6): 1046-1048.

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

4.清华大学工程力学系,北京,100084

5.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 PLANT SPATIALLY EVOLVING MIXING LAYER

本文利用大涡模拟方法研究了空间发展平板混合层流动,分别在三维模型和二维模型下,比较了大尺度结构涡的演化过程,以及流向速度、流向脉动速度、横向脉动速度和Reynolds应力的统计时均结果,并与实验结果对照,指出3D模拟无论在物理真实性还是预报结果准确性方面都要明显优于2D模拟.

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