Validation of fluid-particle interaction force relationships in binary-solid suspensions

作     者：Marco Rotondi Renzo Di Felice Paolo Pagliai 

作者机构：Department of Civil Chemical and Environmental Engneering University of Genova Via Opera Pia 15 16145 Genova Italy 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2015年第13卷第6期

页      面：40-48页

核心收录：

学科分类：081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Solid fluid suspensionsSolid fluid interaction forcesDrag forceBuoyancy force 

摘      要：In this work several relationships governing solid-fluid dynamic interaction forces were validated against experimental data for a single particle settling in a suspension of other smaller particles. It was observed that force relationships based on Lattice-Boltzmann simulations did not perform as well as other inter- action types tested. Nonetheless, it is apparent that, in the case of a suspension of different particle types, it is important that the correct choice is made as to how the contribution to the overall fluid-particle interaction force is split between buoyancy and drag. Experimental evidence clearly suggests that the ＂generalized＂ Archimedes＇ principle （where the foreign particle is considered to displace the whole suspension and not just the fluid） provides the best result.