共 37 条
High-order weighted compact nonlinear scheme for one- and two-dimensional Hamilton-Jacobi equations
被引:5
作者:
Jiang, Yan-Qun
[1
]
Zhou, Shu-Guang
[2
]
Zhang, Xu
[1
]
Hu, Ying-Gang
[1
]
机构:
[1] Southwest Univ Sci & Technol, Dept Math, Mianyang, Sichuan, Peoples R China
[2] China Aerodynam Res & Dev Ctr, Mianyang, Sichuan, Peoples R China
基金:
中国国家自然科学基金;
关键词:
High-order schemes;
WCNS;
Hamilton-Jacobi equations;
WENO-Z;
High resolution;
ESSENTIALLY NONOSCILLATORY SCHEMES;
SEMIDISCRETE CENTRAL SCHEMES;
FINITE-ELEMENT-METHOD;
HERMITE WENO SCHEMES;
TIME DISCRETIZATIONS;
VISCOSITY SOLUTIONS;
D O I:
10.1016/j.apnum.2021.09.012
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
This paper designs a fifth-order weighted compact nonlinear scheme (WCNS) on a five-point stencil to solve one-and two-dimensional Hamilton-Jacobi equations. The five-point WCNS is used to compute the left and right limits of first-order spatial derivatives of the HJ equations in the Lax-Friedrichs monotone numerical Hamiltonian. The WENO-Z type interpolation for cell-edge values of the solutions is used to suppress numerical oscillations which may appear near discontinuities. Five-and seven-point WENO-Z schemes for Hamilton-Jacobi equations are also designed for comparisons. The performance of the WCNS and the two WENO-Z schemes is demonstrated by several numerical examples in one-dimensional and two-dimensional cases. (C) 2021 IMACS. Published by Elsevier B.V. All rights reserved.
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页码:353 / 368
页数:16
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