High-order central Hermite WENO schemes: Dimension-by-dimension moment-based reconstructions

In this paper, a class of high-order central finite volume schemes is proposed for solving one- and two-dimensional hyperbolic conservation laws. Formulated on staggered meshes, the methods involve Hermite WENO (HWENO) spatial reconstructions, and Lax–Wendroff type discretizations or the natural con...

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Bibliographic Details
Published in:Journal of computational physics 2016-08, Vol.318, p.222-251
Main Authors: Tao, Zhanjing, Li, Fengyan, Qiu, Jianxian
Format: Article
Language:English
Subjects:
Central scheme
Discretization
Finite volume method
Hermite WENO
Lax–Wendroff
Mathematical analysis
Mathematical models
Natural continuous extension (NCE) of Runge–Kutta
Reconstruction
Robustness
Runge-Kutta method
Strategy
Two dimensional
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Summary:In this paper, a class of high-order central finite volume schemes is proposed for solving one- and two-dimensional hyperbolic conservation laws. Formulated on staggered meshes, the methods involve Hermite WENO (HWENO) spatial reconstructions, and Lax–Wendroff type discretizations or the natural continuous extension of Runge–Kutta methods in time. Differently from the central Hermite WENO methods we developed previously in Tao et al. (2015) [34], the spatial reconstructions, a core ingredient of the methods, are based on the zeroth-order and the first-order moments of the solution, and are implemented through a dimension-by-dimension strategy when the spatial dimension is higher than one. This leads to much simpler implementation of the methods in higher dimension and better cost efficiency. Meanwhile, the proposed methods have the attractive features of the general central Hermite WENO methods such as being compact in reconstruction and requiring neither flux splitting nor numerical fluxes, while being accurate and essentially non-oscillatory. A collection of one- and two-dimensional numerical examples is presented to demonstrate high resolution and robustness of the methods in capturing smooth and non-smooth solutions.
ISSN:0021-9991
1090-2716
DOI:10.1016/j.jcp.2016.05.005