A non-monotone conservation law for dune morphodynamics.
A non-monotone conservation law for dune morphodynamics.
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发表时间:
2007-09
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通讯作者:
Nathael Alibaud;P. Azérad;D. Isebe
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作者:
Nathael Alibaud;P. Azérad;D. Isebe
We investigate a non-local non linear conservation law, fir st introduced by A.C. Fowler to describe morphodynamics of dunes, see (5, 6). A remarkable feature is the violation of the maximum principle, which allows for erosion phenomenon. We prove well-posedness for initial data in L 2 and give explicit counterexample for the maximum principle. We also provide numerical simulations corroborating our theoretical results.