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arXiv 2103.13362math.AP
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具有空间间断流量的一维非局部交通模型熵弱解的存在性

Existence of entropy weak solutions for 1D non-local traffic models with space-discontinuous flux

Felisia Angela Chiarello, Harold Deivi Contreras, Luis Miguel Villada

摘要:

研究了一维标量守恒律,其非局部通量具有单一的空间间断。该模型旨在描述具有粗糙条件的道路上的交通流。我们近似的问题,通过一个迎风型的数值方案,并提供紧估计序列的近似解。然后,我们证明了熵弱解的存在唯一性。数值模拟证实了理论结果,并对核支撑趋于零时的极限模型进行了数值研究。

英文摘要:

We study a 1D scalar conservation law whose non-local flux has a single spatial discontinuity. This model is intended to describe traffic flow on a road with rough conditions. We approximate the problem through an upwind-type numerical scheme and provide compactness estimates for the sequence of approximate solutions. Then, we prove the existence and the uniqueness of entropy weak solutions. Numerical simulations corroborate the theoretical results and the limit model as the kernel support tends to zero is numerically investigated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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