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pro vyhledávání: '"Churilov, Semyon"'
Autor:
Churilov, Semyon
Long-distance transmission of energy by waves is a key mechanism for many natural processes. It becomes possible when the inhomogeneous medium is arranged in such a manner that it enables a specific type of waves to propagate with virtually no reflec
Externí odkaz:
http://arxiv.org/abs/2411.10112
We show that in the linear approximation there are three classes of reflectionless wave propagation on a surface of shallow water in the channel with spatially varying depth, width, and current speed. Two of these classes have been described in our p
Externí odkaz:
http://arxiv.org/abs/2201.00307
Autor:
Churilov, Semyon, Stepanyants, Yury
In the linear approximation, we study a one-dimensional problem of the reflectionless wave propagation on a surface of a shallow duct with the spatially varying water depth, duct width, and current. We show that both global and bounded exact solution
Externí odkaz:
http://arxiv.org/abs/2108.12549
Autor:
Churilov, Semyon, Stepanyants, Yury
We study hydrodynamic models of astrophysical wormholes when water waves can be amplified in the course of propagation between two critical points where wave and current speeds coincide. Such models can be realised in shallow laboratory ducts with va
Externí odkaz:
http://arxiv.org/abs/2105.06163
Autor:
Churilov, Semyon, Stepanyants, Yury
Publikováno v:
Phys. Rev. Fluids 4, 034704 (2019)
In the linear approximation we study long wave scattering on an axially symmetric flow in a shallow water basin with a drain in the center. This classical problem can be considered as a model of wave scattering on a rotating black hole. For the low f
Externí odkaz:
http://arxiv.org/abs/1810.09796
The analytical study of long wave scattering in a canal with a rapidly varying cross-section is presented. It is assumed that waves propagate on a stationary current with a given flow rate. Due to the fixed flow rate, the current speed is different i
Externí odkaz:
http://arxiv.org/abs/1708.05203
Publikováno v:
Phys. Rev. D 96, 064016 (2017)
We analytically study a scattering of long linear surface waves on stationary currents in a duct (canal) of constant depth and variable width. It is assumed that the background velocity linearly increases or decreases with the longitudinal coordinate
Externí odkaz:
http://arxiv.org/abs/1706.02507
Autor:
Churilov, Semyon1 churilov@iszf.irk.ru
Publikováno v:
Ocean Dynamics. Jul2018, Vol. 68 Issue 7, p867-884. 18p.
Publikováno v:
Journal of Fluid Mechanics; 5/25/2022, Vol. 939, pA15-1-A15-12, 12p
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