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力学学报  2015 

明渠湍流边界层中颗粒的运动与分布

DOI: 10.6052/0459-1879-14-164, PP. 231-241

Keywords: 颗粒运动,湍流边界层,点球浸入边界法,颗粒离散元,Voronoi,分析

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Abstract:

利用直接数值模拟、点球浸入边界法和颗粒离散元法相结合的方法,模拟了颗粒在明渠湍流边界层中的运动,并对颗粒的瞬时位置进行了Voronoi分析,定量研究了颗粒在湍流边界层中的运动和分布规律.研究发现颗粒的输运对湍流的统计特征有影响,其运动与近壁区湍流拟序结构密切相关,在

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