TY - JOUR T1 - On the Central Relaxing Schemes I: Single Conservation Laws AU - Tang , Hua-Zhong JO - Journal of Computational Mathematics VL - 3 SP - 313 EP - 324 PY - 2000 DA - 2000/06 SN - 18 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jcm/9045.html KW - Hyperbolic conservation laws, the relaxing scheme, TVD, cell entropy inequality. AB -
In this first paper we present a central relaxing scheme for scalar conservation laws, based on using the local relaxation approximation. Our scheme is obtained without using linear or nonlinear Riemann solvers. A cell entropy inequality is studied for the semidiscrete central relaxing scheme, and a second order MUSCL scheme is shown to be TVD in the zero relaxation limit. The next paper will extend the central relaxing scheme to multi-dimensional systems of conservation laws in curvilinear coordinates, including numerical experiments for 1D and 2D problems.