Theoretical and numerical analyses of interphase forces in dilute particle-laden channel turbulence

doi:10.7523/j.issn.2095-6134.2017.02.004

Abstract

Abstract: We investigated the relative importance of interphase forces using theoretical method and direct numerical simulation, respectively. The particle motion was described by Basset-Boussinesq-Oseen equation, and the lift force and Magnus force were also considered. It was found that the frequency analysis and dimensional analysis appropriately predicted the importance of the interphase forces relative to the drag force. In these analyses, the parameters of particle-laden flow were within the scope of the calculation formula for different forces. In the streamwise and spanwise directions, Basset force, drag force, and gravity were important. However, drag force, lift force, and Basset force were significant in the wall-normal direction.

Key words: turbulence, particle-laden flow, interphase force, theoretical analysis, numerical simulation

CLC Number:

O359

LI Zhenzhong, WEI Jinjia, YU Bo. Theoretical and numerical analyses of interphase forces in dilute particle-laden channel turbulence[J]. , 2017, 34(2): 146-152.

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