A local mixing particle-in-cell method for fluid-particle multiphase flows

doi:10.6052/0459-1879-2005-3-2003-207

Article Contents

Article Navigation > Chinese Journal of Theoretical and Applied Mechanics > 2005 > 37(3): 356-362

A local mixing particle-in-cell method for fluid-particle multiphase flows[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 356-362. doi: 10.6052/0459-1879-2005-3-2003-207

Citation:

A local mixing particle-in-cell method for fluid-particle multiphase flows[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 356-362. doi: 10.6052/0459-1879-2005-3-2003-207

A local mixing particle-in-cell method for fluid-particle multiphase flows[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 356-362. doi: 10.6052/0459-1879-2005-3-2003-207

Citation:

A local mixing particle-in-cell method for fluid-particle multiphase flows[J]. Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(3): 356-362. doi: 10.6052/0459-1879-2005-3-2003-207

PDF( 1420 KB)

A local mixing particle-in-cell method for fluid-particle multiphase flows

doi: 10.6052/0459-1879-2005-3-2003-207

广州中山大学应用力学与工程系,510275

Publish Date: 2005-05-18

Abstract

Abstract

In this paper, a local mixing particle-in-cell method isproposed for multiphase flows. The method can be used for dense particleflows. Under the grid of particle parcel scale, which is called as Eulercell in this paper, the total particle volume in the cell is calculateddirectly based on the Lagrangian method. Therefore the particle volumefraction (concentration) on the Euler cell and the fluid control volume canbe obtained accurately. Meanwhile, at new time step, particles on the Eulercell are assumed to be mixing sufficiently and come into being a new parcel.Comparing with the previous methods, the proposed method is more efficientand accurate. For the sedimentation in vertical and inclined vessels, andthe bimodal suspension in a vertical vessel, the numerical results agreewith the experimental results.
- multiphase flows,local mixing,particle-in-cell method