%0 Journal Article
%T Improved Weighted Essentially Non-Oscillatory Schemes by Mixed Stencils
%A Shaogang Guo
%A Wang Li
%J Open Journal of Fluid Dynamics
%P 153-165
%@ 2165-3860
%D 2021
%I Scientific Research Publishing
%R 10.4236/ojfd.2021.113009
%X Improved Weighted Essentially Non-oscillatory Scheme is a high order finite volume method. The mixed stencils can be obtained by a combination of r + 1 order and r order stencils. We improve the weights by the mapping method. The restriction that conventional ENO or WENO schemes only use r order stencils, is removed. Higher resolution can be achieved by introducing the r + 1 order stencils. This method is verified by three cases, i.e. the interaction of a moving shock with a density wave problem, the interacting blast wave problem and the double mach reflection problem. The numerical results show that the Improved Weighted Essential Non-oscillatory method is a stable, accurate high-resolution finite volume scheme.
%K Finite Volume Method
%K WENO Schemes
%K Weights
%K Shock
%K Stencils
%K High-Resolution
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=111803