General bounce-back scheme for concentration boundary condition in the lattice-Boltzmann method.

  title={General bounce-back scheme for concentration boundary condition in the lattice-Boltzmann method.},
  author={Ting Zhang and Baochang Shi and Zhaoli Guo and Zhenhua Chai and Jianhua Lu},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={85 1 Pt 2},
In this paper, a general bounce-back scheme is proposed to implement concentration or thermal boundary conditions of convection-diffusion equation with the lattice Boltzmann method (LBM). Using this scheme, the general concentration boundary conditions, i.e., b1(∂Cw/∂n) + b2Cw = b3, can be easily implemented at boundaries with complex geometry structure like that in porous media. The numerical results obtained using the present scheme are in excellent agreement with the analytical solutions of… CONTINUE READING

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