Outflow boundary conditions for the lattice Boltzmann method. (1st May 2008)

• Record Type: Journal Article
• Authors: Junk, Michael; Yang, Zhaoxia
• Is Part Of: Progress in computational fluid dynamics. Volume 8:Number 1-4(2008)
• Page Start: 38
• Page End: 48
• Publication Date: 2008-05-01
• Subjects: lattice Boltzmann method -- asymptotic analysis -- Navier-Stokes -- outflow boundary conditions; Fluid dynamics -- Data processing -- Periodicals; Fluid dynamics -- Mathematics -- Periodicals; 620.10640285
• Languages: English
• ISSNs: 1468-4349

Abstract

In this paper, we propose lattice Boltzmann implementations of several Navier-Stokes outflow boundary conditions like the zero normal-stress, the Neumann, and the do-nothing rule. A consistency analysis using asymptotic methods is given and the algorithms are numerically tested in two space dimensions with respect to accuracy and interaction with the inner flow field.