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Initial value problem solution of nonlinear shallow water-wave equations
Date
2006-10-06
Author
Kanoğlu, Utku
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The initial value problem solution of the nonlinear shallow water-wave equations is developed under initial waveforms with and without velocity. We present a solution method based on a hodograph-type transformation to reduce the nonlinear shallow water-wave equations into a second-order linear partial differential equation and we solve its initial value problem. The proposed solution method overcomes earlier limitation of small waveheights when the initial velocity is nonzero, and the definition of the initial conditions in the physical and transform spaces is consistent. Our solution not only allows for evaluation of differences in predictions when specifying an exact initial velocity based on nonlinear theory and its linear approximation, which has been controversial in geophysical practice, but also helps clarify the differences in runup observed during the 2004 and 2005 Sumatran tsunamigenic earthquakes.
Subject Keywords
Sloping beach
,
Run-up
,
Tsunami
,
Amplitude
,
Evolutİon
,
Model
URI
https://hdl.handle.net/11511/48421
Journal
PHYSICAL REVIEW LETTERS
DOI
https://doi.org/10.1103/physrevlett.97.148501
Collections
Department of Engineering Sciences, Article
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U. Kanoğlu, “Initial value problem solution of nonlinear shallow water-wave equations,”
PHYSICAL REVIEW LETTERS
, pp. 0–0, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48421.