The Generalized Carrier–Greenspan Transform for the Shallow Water System with Arbitrary Initial and Boundary Conditions
The Generalized Carrier–Greenspan Transform for the Shallow Water System with Arbitrary Initial and Boundary Conditions
复制标题
具有任意初始和边界条件的浅水系统的广义载流子格林斯潘变换
DOI:
10.1007/s42286-020-00042-w
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Buckel, Maxwell
中科院分区:
文献类型:
--
作者:
Rybkin, Alexei;Nicolsky, Dmitry;Pelinovsky, Efim;Buckel, Maxwell
We put forward a solution to the initial boundary value (IBV) problem for the nonlinear shallow water system in inclined channels of arbitrary cross section by means of the generalized Carrier–Greenspan hodograph transform (Rybkin et al. in J Fluid Mech, 748:416–432, 2014). Since the Carrier–Greenspan transform, while linearizing the shallow water system, seriously entangles the IBV in the hodograph plane, all previous solutions required some restrictive assumptions on the IBV conditions, e.g., zero initial velocity, smallness of boundary conditions. For arbitrary non-breaking initial conditions in the physical space, we present an explicit formula for equivalent IBV conditions in the hodograph plane, which can readily be treated by conventional methods. Our procedure, which we call the method of data projection, is based on the Taylor formula and allows us to reduce the transformed IBV data given on curves in the hodograph plane to the equivalent data on lines. Our method works equally well for any inclined bathymetry (not only plane beaches) and, moreover, is fully analytical for U-shaped bays. Numerical simulations show that our method is very robust and can be used to give express forecasting of tsunami wave inundation in narrow bays and fjords.
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影响因子:
4.6
作者:
I. Didenkulova;E. Pelinovsky
通讯作者:
E. Pelinovsky
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Sergei Yu Dobrokhotov;Brunello Tirozzi
通讯作者:
Brunello Tirozzi
DOI:
10.1098/rspa.2004.1367
发表时间:
2005
期刊:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
W. Craig;P. Guyenne;D. Nicholls;C. Sulem
通讯作者:
C. Sulem
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
S. Dobrokhotov;V. Nazaikinskii;B. Tirozzi
通讯作者:
B. Tirozzi
影响因子:
--
作者:
Amir Raz;D. Nicolsky;A. Rybkin;E. Pelinovsky
通讯作者:
Amir Raz;D. Nicolsky;A. Rybkin;E. Pelinovsky