Particle-laden or droplet-laden turbulent flows occur in many industrial applications and in natural phenomena. Knowledge about the properties of these flows can help to improve the design of unit operations in industry and to predict for instance the occurrence of rain showers. This knowledge can be obtained from experimental research and from numerical simulations. In this paper a review is given of numerical simulation methods for particle-laden flows. There are various simulation methods possible. They range from methods in which all details, including the flow around each particle, are resolved, via point-particle methods, in which for each particle an equation of motion is solved, to Eulerian methods in which equations for particle concentration and velocity are solved. This review puts the emphasis on the intermediate class of methods, the Euler-Lagrange methods in which the continuous phase is described by an Eulerian approach and the dispersed phase in a Lagrangian way with equations of motion for each individual particle.

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载粒子湍流的点粒子 DNS 和 LES - 最新评论

载有粒子或载有液滴的湍流发生在许多工业应用和自然现象中。了解这些流的特性有助于改进工业单元操作的设计，并预测例如阵雨的发生。这些知识可以从实验研究和数值模拟中获得。本文综述了含颗粒流的数值模拟方法。有各种可能的模拟方法。它们的范围从解决所有细节（包括每个粒子周围的流动）的方法，通过点粒子方法（为每个粒子求解运动方程）到欧拉方法（求解粒子浓度和速度方程） . 这篇评论将重点放在中间类方法上，