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首页> 外文期刊>Engineering Applications of Computational Fluid Mechanics >A parallel fictitious domain method for the interface-resolved simulation of particle-laden flows and its application to the turbulent channel flow
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A parallel fictitious domain method for the interface-resolved simulation of particle-laden flows and its application to the turbulent channel flow

机译：含粒子流界面解析模拟的并行虚拟域方法及其在湍流通道中的应用

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摘要

A parallel direct-forcing (DF) fictitious domain (FD) method for the simulation of particulate flows is reported in this paper. The parallel computing strategies for the solution of flow fields and particularly the distributed Lagrange multiplier are presented, and the high efficiency of the parallel code is demonstrated. The new code is then applied to study the effects of particle density (or particle inertia) on the turbulent channel flow. The results show that the large-scale vortices are weakened more severely, and the flow friction drag increases first and then reduces, as particle inertia is increased.
机译：本文报道了一种并行的直接强迫（DF）虚拟域（FD）方法来模拟颗粒流。提出了求解流场，尤其是分布式拉格朗日乘数的并行计算策略，并证明了并行代码的高效率。然后，将新代码应用于研究颗粒密度（或颗粒惯性）对湍流通道流动的影响。结果表明，随着颗粒惯性的增加，大尺度涡旋减弱得更严重，流动摩擦阻力先增大然后减小。

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