Hamilton-Jacobi equations;
central schemes;
semi-discrete schemes;
high order;
WENO;
weighted power ENO;
mapped ENO;
D O I:
10.1016/j.apnum.2006.03.005
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We incorporate new high-order WENO-type reconstructions into Godunov-type central schemes for Hamilton-Jacobi equations. We study schemes that are obtained by combining the Kurganov-Noelle-Petrova flux with the weighted power ENO and the mapped WENO reconstructions. We also derive new variants of these reconstructions by composing the weighted power ENO and the mapped WENO reconstructions with each other. While all schemes are, formally, fifth-order accurate, we show that the quality of the approximation does depend on the particular reconstruction that is being used. In certain cases, it is shown that the approximate solution may not converge to the viscosity solution at all. (c) 2006 IMACS. Published by Elsevier B.V. All rights reserved.