Characteristic boundary conditions in the lattice Boltzmann method for fluid and gas dynamics

  title={Characteristic boundary conditions in the lattice Boltzmann method for fluid and gas dynamics},
  author={Daniel Heubes and Andreas Bartel and Matthias Ehrhardt},
  journal={J. Computational Applied Mathematics},
For numerically solving fluid dynamics problems efficiently one is often facing the problem that one has to confine the computational domain to a small domain of interest introducing so-called non-reflecting boundary conditions (NRBCs). In this work we address the problem of supplying NRBCs in fluid simulations in two space dimensions using the lattice Boltzmann method (LBM): socalled characteristic boundary conditions are revisited and transferred to the framework of lattice Boltzmann… CONTINUE READING


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