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arXiv 1503.05246math.APphysics.flu-dyn
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一类可压缩流体模型测度值解的弱-强唯一性

Weak-strong uniqueness for measure-valued solutions of some compressible fluid models

Piotr Gwiazda, Agnieszka Świerczewska-Gwiazda, Emil Wiedemann

摘要:

我们证明了弱-强唯一性类的容许测度值的解决方案的等熵欧拉方程在任何空间维和Savage-Hutter模型的颗粒流在一个和两个空间维。对于后一个系统,我们还显示了在有限时间内的动量完全耗散,从而严格证明了一个假设,已在工程和数值文献。

英文摘要:

We prove weak-strong uniqueness in the class of admissible measure-valued solutions for the isentropic Euler equations in any space dimension and for the Savage-Hutter model of granular flows in one and two space dimensions. For the latter system, we also show the complete dissipation of momentum in finite time, thus rigorously justifying an assumption that has been made in the engineering and numerical literature.

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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