Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
472173 | Computers & Mathematics with Applications | 2009 | 8 Pages |
Abstract
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.
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Physical Sciences and Engineering
Computer Science
Computer Science (General)
Authors
Michael Junk, Zhaoxia Yang,