The relaxation schemes for systems of conservation laws in arbitrary space dimensions
Shi Jin, Zhouping Xin
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Published: Jan 1, 1995
DOI: 10.1002/cpa.3160480303
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Abstract We present a class of numerical schemes (called the relaxation schemes) for systems of conservation laws in several space dimensions. The idea is to use a local relaxation approximation. We construct a linear hyperbolic system with a stiff lower order term that approximates the original system with a small dissipative correction. The new system can be solved by underresolved stable numerical discretizations without using either Riemann solvers spatially or a nonlinear system of algebraic equations solvers temporally. Numerical results for 1‐D and 2‐D problems are presented. The second‐order schemes are shown to be total variation diminishing (TVD) in the zero relaxation limit for scalar equations. ©1995 John Wiley & Sons, Inc.
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