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A Godunov type scheme and error estimates for scalar conservation laws with Panov-type discontinuous flux

机译:帕诺夫型不连续通量标量守恒律的Godunov型方案及误差估计

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摘要

This article concerns a scalar conservation law where the flux is of Panov type and may contain spatial discontinuities. We define a notion of entropy solution and discuss the existence via Godunov type finite volume approximation. We further show that our numerical scheme converges the entropy solution at an optimal rate of O (root Delta T). To the best of our knowledge, the error estimates of the numerical scheme are the first of its kind for conservation laws with discontinuous flux where spatial discontinuities can accumulate. We present numerical examples that illustrate the theory.
机译:本文涉及一种标量守恒定律,其中通量为Panov类型,可能包含空间不连续性。我们定义了一个熵解的概念,并通过戈杜诺夫型有限体积近似讨论了熵解的存在性。我们进一步表明,我们的数值方案以 O(根 Delta T)的最佳速率收敛熵解。据我们所知,数值方案的误差估计是首次针对具有不连续通量的守恒定律,其中空间不连续性可以累积。我们通过数值实例来说明该理论。

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