A New Fifth-Order Finite Volume Central WENO Scheme for Hyperbolic Conservation Laws on Staggered Meshes
A New Fifth-Order Finite Volume Central WENO Scheme for Hyperbolic Conservation Laws on Staggered Meshes
复制标题
交错网格双曲守恒定律的新五阶有限体积中心WENO方案
DOI:
10.4208/aamm.oa-2021-0095
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发表时间:
2022-06
影响因子:
1.4
通讯作者:
Jun Zhu
中科院分区:
文献类型:
--
作者:
Shengzhu Cui;Zhanjing Tao null;Jun Zhu
In this paper, a new fifth-order finite volume central weighted essentially non-oscillatory (CWENO) scheme is proposed for solving hyperbolic conservation laws on staggered meshes. The high-order spatial reconstruction procedure using a convex combination of a fourth degree polynomial with two linear polynomials (in one dimension) or four linear polynomials (in two dimensions) in a traditional WENO fashion and a time discretization method using the natural continuous extension (NCE) of the Runge-Kutta method are applied to design this new fifth-order CWENO scheme. This new finite volume CWENO scheme uses the information defined on the same largest spatial stencil as that of the same order classical CWENO schemes [37, 46] with the application of smaller number of unequal-sized spatial stencils. Since the new nonlinear weights are adopted, the new finite volume CWENO scheme could obtain the same order of accuracy and get smaller truncation errors in L1 and L∞ norms in smooth regions, and control the spurious oscillations near strong shocks or contact discontinuities. The new CWENO scheme has advantages over the classical CWENO schemes [37, 46] on staggered meshes in its simplicity and easy extension to multi-dimensions. Some one-dimensional and two-dimensional benchmark numerical examples are provided to illustrate the good performance of this new fifthorder finite volume CWENO scheme. AMS subject classifications: 65M60, 35L65
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DOI:
10.1088/0031-9112/11/6/008
发表时间:
1960-06
期刊:
Physics Bulletin
影响因子:
--
作者:
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通讯作者:
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影响因子:
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期刊:
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影响因子:
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期刊:
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影响因子:
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通讯作者:
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影响因子:
4.1
作者:
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通讯作者:
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