Pressure boundary condition for the lattice Boltzmann method


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JUNK, Michael, Zhaoxia YANG, 2009. Pressure boundary condition for the lattice Boltzmann method. In: Computers & Mathematics with Applications. 58(5), pp. 922-929

@article{Junk2009Press-817, title={Pressure boundary condition for the lattice Boltzmann method}, year={2009}, doi={10.1016/j.camwa.2009.02.006}, number={5}, volume={58}, journal={Computers & Mathematics with Applications}, pages={922--929}, author={Junk, Michael and Yang, Zhaoxia} }

2011-03-22T17:48:59Z 2011-03-22T17:48:59Z Junk, Michael 2009 Publ. in: Computers & Mathematics with Applications 58 (2009), 5, pp. 922-929 eng deposit-license Pressure boundary condition for the lattice Boltzmann method Yang, Zhaoxia We propose a lattice Boltzmann realization for the hydrodynamic pressure drop condition introduced in [J. Heywood, R. Rannacher, S. Turek, Artificial boundaries and flux and pressure conditions for the incompressible Navier Stokes equations, Int. J. Numer. Methods Fluids 22 (1996) 325 352]. This condition has the advantage that only the average pressure needs to be prescribed at the boundary. In general, a second order accurate velocity and a first order accurate pressure are recovered with the proposed lattice Boltzmann implementation. The analytical investigation is supported by numerical simulations of a Poiseuille flow and a less symmetric flow with nontrivial pressure field. Yang, Zhaoxia Junk, Michael

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