Kinetic meshless method for compressible flows

Praveen, C. ; Deshpande, S. M. (2007) Kinetic meshless method for compressible flows International Journal for Numerical Methods in Fluids, 55 (11). pp. 1059-1089. ISSN 0271-2091

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We present a grid-free or meshless approximation called the kinetic meshless method (KMM), for the numerical solution of hyperbolic conservation laws that can be obtained by taking moments of a Boltzmann-type transport equation. The meshless formulation requires the domain discretization to have very little topological information; a distribution of points in the domain together with local connectivity information is sufficient. For each node, the connectivity consists of a set of nearby nodes which are used to evaluate the spatial derivatives appearing in the conservation law. The derivatives are obtained using a modified form of the least-squares approximation. The method is applied to the Euler equations for inviscid flow and results are presented for some 2-D problems. The ability of the new scheme to accurately compute inviscid flows is clearly demonstrated, including good shock capturing ability. Comparisons with other grid-free methods are made showing some advantages of the current approach.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons, Inc.
Keywords:Meshless Method; Kinetic Scheme; Least Squares; Euler Equations
ID Code:9468
Deposited On:02 Nov 2010 12:09
Last Modified:31 May 2011 09:30

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