WENO schemes with adaptive order for Hamilton–Jacobi equations

Rooholah Abedian ()
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Rooholah Abedian: School of Engineering Science, College of Engineering, University of Tehran, Iran

International Journal of Modern Physics C (IJMPC), 2023, vol. 34, issue 06, 1-22

Abstract: In this work, a fifth-order weighted essentially nonoscillatory scheme based on Legendre polynomials is constructed for simulating Hamilton–Jacobi (HJ) equations in a finite difference framework. The new reconstruction is a convex combination of a fourth-degree polynomial and two quadratic polynomials in WENO-Z fashion. This reconstruction uses the same six-point information as the original fifth-order WENO scheme [G.-S. Jiang and D. Peng, SIAM J. Sci. Comput. 21, 2126 (2000)] and could obtain smaller absolute truncation errors and the same accuracy order in the smooth region, while it has less computational time. A detailed analysis of the approximation order of the designed WENO scheme is prepared. Some benchmark tests in one-dimensional and multi-dimensional space are considered to display the capability of the new proposed scheme.

Keywords: Weighted essentially nonoscillatory scheme; finite difference framework; Hamilton–Jacobi equations; smoothness indicator (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S012918312350081X

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