Abstract This paper deals with the numerical simulation of gas－solid two-phase flows in an Eulerian－Lagrangian scheme. The particle tracks are calculated using a recently developed exponential Lagrangian scheme, and the approach presently used for the computation of fluid phase is based on a modified Lattice-BGK model. Different from earlier publications, the present study employs a two-way coupling mechanism to handle the interactions between carrier phase and dispersed phase in the model. This new model is applicable to simulating gas－solid two-phase flows. For example, based on the scheme, we have recaptured some phenomena of planar laminar particle-laden flow over a backward-facing step in this research, and found a new interesting phenomenon.
Received: 08 October 2003
Revised: 14 December 2003
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60073044), and the State Key Development Programme for Basic Research of China (Grant No G1999022207).
Cite this article:
Chen Sheng (陈胜), Shi Bao-Chang (施保昌), Liu Zhao-Hui (柳朝晖), He Zhu (贺铸), Guo Zhao-Li (郭照立), Zheng Chu-Guang (郑楚光) Lattice-Boltzmann simulation of particle-laden flow over a backward-facing step 2004 Chinese Physics 13 1657
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