Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.physleta.2006.01.060
Title: A momentum exchange-based immersed boundary-lattice Boltzmann method for simulating incompressible viscous flows
Authors: Niu, X.D.
Shu, C. 
Chew, Y.T. 
Peng, Y.
Keywords: Immersed boundary method
Lattice Boltzmann method
Momentum exchange
Moving boundaries
Issue Date: 29-May-2006
Source: Niu, X.D., Shu, C., Chew, Y.T., Peng, Y. (2006-05-29). A momentum exchange-based immersed boundary-lattice Boltzmann method for simulating incompressible viscous flows. Physics Letters, Section A: General, Atomic and Solid State Physics 354 (3) : 173-182. ScholarBank@NUS Repository. https://doi.org/10.1016/j.physleta.2006.01.060
Abstract: A momentum exchange-based immersed boundary-lattice Boltzmann method is presented in this Letter for simulating incompressible viscous flows. This method combines the good features of the lattice Boltzmann method (LBM) and the immersed boundary method (IBM) by using two unrelated computational meshes, an Eulerian mesh for the flow domain and a Lagrangian mesh for the solid boundaries in the flow. In this method, the non-slip boundary condition is enforced by introducing a forcing term into the lattice Boltzmann equation (LBE). Unlike the conventional IBM using the penalty method with a user-defined parameter or the direct forcing scheme based on the Navier-Stokes (NS) equations, the forcing term is simply calculated by the momentum exchange of the boundary particle density distribution functions, which are interpolated by the Lagrangian polynomials from the underlying Eulerian mesh. Numerical examples show that the present method can provide very accurate numerical results. © 2006 Elsevier B.V. All rights reserved.
Source Title: Physics Letters, Section A: General, Atomic and Solid State Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/54439
ISSN: 03759601
DOI: 10.1016/j.physleta.2006.01.060
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