Title
Positivity-preserving high order finite difference WENO schemes for compressible Euler equations
Abstract
In Zhang and Shu (2010) [20], Zhang and Shu (2011) [21] and Zhang et al. (in press) [23], we constructed uniformly high order accurate discontinuous Galerkin (DG) and finite volume schemes which preserve positivity of density and pressure for the Euler equations of compressible gas dynamics. In this paper, we present an extension of this framework to construct positivity-preserving high order essentially non-oscillatory (ENO) and weighted essentially non-oscillatory (WENO) finite difference schemes for compressible Euler equations. General equations of state and source terms are also discussed. Numerical tests of the fifth order finite difference WENO scheme are reported to demonstrate the good behavior of such schemes.
Year
DOI
Venue
2012
10.1016/j.jcp.2011.11.020
J. Comput. Physics
Keywords
Field
DocType
compressible gas dynamic,euler equation,finite difference scheme,finite difference weno scheme,good behavior,compressible euler equation,general equation,order finite difference weno,high order,accurate discontinuous galerkin,finite volume scheme,gas dynamics,compressible flow,numerical analysis,euler equations
Compressibility,Discontinuous Galerkin method,Mathematical analysis,Finite difference,Finite difference coefficient,Numerical analysis,Compressible flow,Finite volume method,Euler equations,Mathematics
Journal
Volume
Issue
ISSN
231
5
0021-9991
Citations 
PageRank 
References 
34
1.74
9
Authors
2
Name
Order
Citations
PageRank
Xiangxiong Zhang146232.93
Chi-Wang Shu24053540.35