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Study on Force Schemes in Pseudopotential Lattice Boltzmann Model for Two-Phase Flows

Author

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  • Yong Peng
  • Bo Wang
  • Yunfei Mao

Abstract

Multiphase flows are very important in industrial application. In present study, the force schemes in the pseudopotential LBM for two-phase flows have been compared in detail and the force schemes include Shan-Chen, EDM, MED, and Guo’s schemes. Numerical simulations confirm that all four schemes are consistent with the Laplace law. For Shan-Chen scheme, the smaller is, the smaller the surface tension is. However, for other schemes, has no effect on surface tension. When , the achieved density ratio will reduce as reduces. During this range of , the maximum density ratio of EDM scheme will be greater than that of other schemes. For a constant , the curves of the maximum spurious currents has a minimum value which is corresponding to except for EDM schemes. In the region of , will reduce as decreases. On the other hand, in the area of , will increase as decreases. However, for EDM scheme, will increase as increases.

Suggested Citation

  • Yong Peng & Bo Wang & Yunfei Mao, 2018. "Study on Force Schemes in Pseudopotential Lattice Boltzmann Model for Two-Phase Flows," Mathematical Problems in Engineering, Hindawi, vol. 2018, pages 1-9, January.
    • Handle: RePEc:hin:jnlmpe:6496379
    DOI: 10.1155/2018/6496379
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