湍流二相流大涡模拟颗粒相亚格子模型

来源 :2016年全国环境力学学术研讨会 | 被引量 : 0次 | 上传用户:alex851123
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  携带颗粒的湍流二相流广泛存在于环境流动中,如大气层暖云中雨滴的形成,沙尘暴中的风沙二相流等。湍流二相流的复杂性在于其多尺度特性:除了湍流自身的多尺度时空结构外,颗粒可引入新的尺度并与湍流最小涡尺度分离,例如颗粒直径尺度小于柯尔莫格洛夫长度尺度。湍流二相流的数值模拟对分析流动机理,预测环境流动具有重要意义。
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