Extended hybrid pressure and velocity boundary conditions for D3Q27 lattice Boltzmann model
نویسندگان
چکیده
منابع مشابه
On pressure and velocity flow boundary conditions and bounceback for the lattice Boltzmann BGK model
Pressure (density) and velocity boundary conditions inside a flow domain are studied for 2-D and 3-D lattice Boltzmann BGK models (LBGK) and a new method to specify these conditions are proposed. These conditions are constructed in consistency of the wall boundary condition based on an idea of bounceback of non-equilibrium distribution. When these conditions are used together with the improved ...
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Pressure (density) and velocity boundary conditions inside a flow domain are studied for 2D and 3-D lattice Boltzmann BGKmodels (LBGK) and new method to specify these conditions are proposed. These conditions are consistent with the boundary condition we proposed in [1] using an idea of bounce-back of non-equilibrium distribution. These conditions give excellent results for the regular LBGKmode...
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Pressure ~density! and velocity boundary conditions are studied for 2-D and 3-D lattice Boltzmann BGK models ~LBGK! and a new method to specify these conditions is proposed. These conditions are constructed in consistency with the wall boundary condition, based on the idea of bounceback of the non-equilibrium distribution. When these conditions are used together with the incompressible LBGK mod...
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Based on the no-slip boundary condition for walls at rest for the lattice Boltzmann Bathnagar-Gross-Krook method by J.C.G. Verschaeve [10], a no-slip boundary condition for walls with a tangential movement is derived. Numerical tests verify that the present boundary condition is second order accurate and stable for relaxation frequencies close to two.
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ژورنال
عنوان ژورنال: Applied Mathematical Modelling
سال: 2012
ISSN: 0307-904X
DOI: 10.1016/j.apm.2011.08.015