Directly solving the Hamilton-Jacobi equations by Hermite WENO Schemes

详细信息    查看全文

• 作者：Feng Zheng ^{fzbz200808-31@163.com" class="auth_mail" title="E-mail the corresponding author} ; Jianxian Qiu ; ^{jxqiu@xmu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：HWENO method ; Hamilton&ndash ; Jacobi equation ; Finite volume method ; Monotone modification
• 刊名：Journal of Computational Physics
• 出版年：2016
• 出版时间：15 February 2016
• 年：2016
• 卷：307
• 期：Complete
• 页码：423-445
• 全文大小：2465 K

文摘

In this paper, we present a class of new Hermite weighted essentially non-oscillatory (HWENO) schemes based on finite volume framework to directly solve the Hamilton–Jacobi (HJ) equations. For HWENO reconstruction, both the cell average and the first moment of the solution are evolved, and for two dimensional case, HWENO reconstruction is based on a dimension-by-dimension strategy which is the first used in HWENO reconstruction. For spatial discretization, one of key points for directly solving HJ equation is the reconstruction of numerical fluxes. We follow the idea put forward by Cheng and Wang (2014) [3] to reconstruct the values of solution at Gauss–Lobatto quadrature points and numerical fluxes at the interfaces of cells, and for neither the convex nor concave Hamiltonian case, the monotone modification of numerical fluxes is added, which can guarantee the precision in the smooth region and converge to the entropy solution when derivative discontinuities come up. The third order TVD Runge–Kutta method is used for the time discretization. Extensive numerical experiments in one dimensional and two dimensional cases are performed to verify the efficiency of the methods.