A novel boundary condition for the simulation of the submerged bodies using lattice boltzmann method

Authors

  • A. Shahirpour Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University
  • F. Sabetghadam Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University
  • H. R. Fathalizadeh Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University
  • Sh. Sharafatmandjoor Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University
Abstract:

In this study, we proposed a novel scheme for the implementation of the no-slip boundary condition in thelattice Boltzmann method (LBM) . In detail , we have substituted the classical bounce-back idea by the direct immersed boundary specification . In this way we construct the equilibrium density functions in such a way that it feels the no-slip boundaries . Therefore , in fact a kind of equilibrium boundary condition is made . Results show that the proposed method presents also a faster solution procedure in comparison to the bounce-back scheme .

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Journal title

volume 2  issue 2

pages  149- 152

publication date 2012-06-20

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