In fluid dynamics, an interface splash singularity occurs when a locally smooth interface self-intersects in finite time. We prove that for d-dimensional flows, or 3, the free-surface of a viscous water wave, modeled by the incompressible Navier–Stokes equations with moving free-boundary, has a finite-time splash singularity for a large class of specially prepared initial data. In particular, we prove that given a sufficiently smooth initial boundary (which is close to self-intersection) and a divergence-free velocity field designed to push the boundary towards self-intersection, the interface will indeed self-intersect in finite time.
@article{AIHPC_2019__36_2_475_0, author = {Coutand, Daniel and Shkoller, Steve}, title = {On the splash singularity for the free-surface of a {Navier{\textendash}Stokes} fluid}, journal = {Annales de l'I.H.P. Analyse non lin\'eaire}, pages = {475--503}, publisher = {Elsevier}, volume = {36}, number = {2}, year = {2019}, doi = {10.1016/j.anihpc.2018.06.004}, mrnumber = {3913195}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.anihpc.2018.06.004/} }
TY - JOUR AU - Coutand, Daniel AU - Shkoller, Steve TI - On the splash singularity for the free-surface of a Navier–Stokes fluid JO - Annales de l'I.H.P. Analyse non linéaire PY - 2019 SP - 475 EP - 503 VL - 36 IS - 2 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.anihpc.2018.06.004/ DO - 10.1016/j.anihpc.2018.06.004 LA - en ID - AIHPC_2019__36_2_475_0 ER -
%0 Journal Article %A Coutand, Daniel %A Shkoller, Steve %T On the splash singularity for the free-surface of a Navier–Stokes fluid %J Annales de l'I.H.P. Analyse non linéaire %D 2019 %P 475-503 %V 36 %N 2 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.anihpc.2018.06.004/ %R 10.1016/j.anihpc.2018.06.004 %G en %F AIHPC_2019__36_2_475_0
Coutand, Daniel; Shkoller, Steve. On the splash singularity for the free-surface of a Navier–Stokes fluid. Annales de l'I.H.P. Analyse non linéaire, Tome 36 (2019) no. 2, pp. 475-503. doi : 10.1016/j.anihpc.2018.06.004. http://www.numdam.org/articles/10.1016/j.anihpc.2018.06.004/
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