On weak solutions to the 2D Savage-Hutter model of the motion of a gravity driven avalanche flow
Analysis of PDEs
2017-06-14 v1
Abstract
We consider the Savage-Hutter system consisting of two-dimensional depth-integrated shallow water equations for the incompressible fluid with the Coulomb-type friction term. Using the method of convex integration we show that the associated initial-value problem possesses infinitely many weak solutions for any finite-energy initial data. On the other hand, the problem enjoys the weak-strong uniqueness property provided the system of equations is supplemented with the energy inequality.
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Cite
@article{arxiv.1502.06223,
title = {On weak solutions to the 2D Savage-Hutter model of the motion of a gravity driven avalanche flow},
author = {Eduard Feireisl and Piotr Gwiazda and Agnieszka Swierczewska-Gwiazda},
journal= {arXiv preprint arXiv:1502.06223},
year = {2017}
}
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17 pages