Simulation of Turbulent Flows Using a Finite-Volume Based Lattice Boltzmann Flow Solver. (28th November 2014)

• Record Type: Journal Article
• Authors: Guzel, Goktan; Koc, Ilteris
• Is Part Of: Communications in computational physics. Volume 17:Number 1(2015:Jan.)
• Page Start: 213
• Page End: 232
• Publication Date: 2014-11-28
• Subjects: 76M12, -- 76M28, -- 76D99, -- 76F99; Lattice Boltzmann Method, -- finite-volume approach, -- turbulent flows; Mathematical physics -- Data processing -- Periodicals; Physics -- Data processing -- Periodicals; 530.150285
• DOI: 10.4208/cicp.040314.010814a
• Languages: English
• ISSNs: 1815-2406

Abstract

Abstract: In this study, the Lattice Boltzmann Method (LBM) is implemented through a finite-volume approach to perform 2-D, incompressible, and turbulent fluid flow analyses on structured grids. Even though the approach followed in this study necessitates more computational effort compared to the standard LBM (the so called stream and collide scheme), using the finite-volume method, the known limitations of the stream and collide scheme on lattice to be uniform and Courant-Friedrichs-Lewy (CFL) number to be one are removed. Moreover, the curved boundaries in the computational domain are handled more accurately with less effort. These improvements pave the way for the possibility of solving fluid flow problems with the LBM using coarser grids that are refined only where it is necessary and the boundary layers might be resolved better.