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Numerical approaches for motion of dispersed particles, droplets and bubbles

机译：分散颗粒，液滴和气泡运动的数值方法

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Recent advances in computational approaches for two-phase flow motion of solid particles, liquid particles, and gas bubbles are reviewed in the context of engineering calculations. The surrounding fluid is assumed to behave in a continuum and the dispersed-fluid is assumed to be dilute such that particle--particle interactions and two-way coupling effects can be ignored. The key process considered herein is momentum transfer to the particles with emphasis on turbulent diffusion. Computational approaches are classified by their particular treatment of the continuous-phase (surrounding liquid or gas) and of the dispersed- phase (solid particles, droplets, or bubbles). The most appropriate point-volume descriptions for interphase transfer of momen- tum are described based on current research and experimental data. Modern Lagrangian and Eulerian treatments of the dispersed-phase motion are then considered for predicting a variety of particle--fluid physical phenomenon. Finally, the “tools” (computational techniques) are summarized based on the “job” (prediction of a particular set of dispersed-phase properties) and the “cost” (required computational resources).
机译：在工程计算的背景下，对固体颗粒，液体颗粒和气泡两相流动的计算方法的最新进展进行了综述。假定周围的流体表现为连续的，而分散的流体则被认为是稀薄的，因此可以忽略颗粒间的相互作用和双向耦合效应。本文考虑的关键过程是动量转移到粒子上，重点是湍流扩散。通过对连续相（周围的液体或气体）和分散相（固体颗粒，液滴或气泡）的特殊处理，对计算方法进行分类。基于当前的研究和实验数据，描述了最适合相间转移的点-体积描述。然后考虑对分散相运动进行现代拉格朗日和欧拉法处理，以预测各种颗粒-流体物理现象。最后，基于“作业”（对一组特定的分散相特性的预测）和“成本”（所需的计算资源）总结了“工具”（计算技术）。

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