Simulation of unsteady two-phase flows using a parallel Eulerian-Lagrangian approach

被引：15
|
作者：
Pankajakshan, Ramesh [1 ]
Mitchell, Brent J.
Taylor, Lafayette K. [1 ]
机构：
[1] SimCtr Natl Ctr Computat Engn, Chattanooga, TN 37403 USA
来源：
COMPUTERS & FLUIDS | 2011年 / 41卷 / 01期
关键词：
CFD; Lagrangian; Particle; Two-phase;
D O I：
10.1016/j.compfluid.2010.09.020
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The present study details the implementation of a time accurate method for the tracking of particles being acted upon by a continuous gas phase and gravity. The Lagrangian particle tracking approach was implemented within the framework of a parallel, incompressible, unstructured, node-centered finite-volume flow solver. The paper gives a method for selecting time steps for individual particles such that interactions with the continuum phase are updated at particle locations nearest the continuum-phase nodes while constraining the particle from passing beyond boundaries of the relevant adjacent cell. An implementation of this technique for three-dimensional nonuniform multi-element unstructured grids is given in the context of domain decomposition for implementation on distributed-memory parallel computers. Results of simulations with and without particle-particle collisions compare favorably with experimental validation results. (C) 2010 Elsevier Ltd. All rights reserved.
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页码：20 / 26
页数：7
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