Existence, Nonexistence, and Asymptotics of Deep Water Solitary Waves with Localized Vorticity
Existence, Nonexistence, and Asymptotics of Deep Water Solitary Waves with Localized Vorticity
复制标题
具有局域涡度的深水孤立波的存在、不存在和渐近
DOI:
10.1007/s00205-019-01399-0
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发表时间:
2019
影响因子:
2.5
通讯作者:
Wheeler, Miles H.
中科院分区:
文献类型:
--
作者:
Chen, Robin Ming;Walsh, Samuel;Wheeler, Miles H.
In this paper, we study solitary waves propagating along the surface of an infinitely deep body of water in two or three dimensions. The waves are acted upon by gravity and capillary effects are allowed—but not required—on the interface. We assume that the vorticity is localized in the sense that it satisfies certain moment conditions, and we permit there to be finitely many point vortices in the bulk of the fluid in two dimensions. We also consider a two-fluid model with a vortex sheet. Under mild decay assumptions, we obtain precise asymptotics for the velocity field and free surface, and relate this to global properties of the wave. For instance, we rule out the existence of waves whose free surface elevations have a single sign and of vortex sheets with finite angular momentum. Building on the work ofShatahet al. (Nonlinearity 26:1529–1564, 2013), we also prove the existence of families of two-dimensional capillary-gravity waves with compactly supported vorticity satisfying the above assumptions. For these waves, we further show that the free surface is positive in a neighborhood of infinity, and that the asymptotics at infinity are linked to the net vorticity.
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DOI:
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发表时间:
1997
期刊:
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
S. Sun
通讯作者:
S. Sun
影响因子:
3.7
作者:
E. Wahlén
通讯作者:
E. Wahlén
DOI:
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1961
期刊:
影响因子:
--
作者:
I. Filippov
通讯作者:
I. Filippov
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
S. Sun
通讯作者:
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DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
C. Amick
通讯作者:
C. Amick