Numerical Studies of 2D Free Surface Waves with Fixed Bottom

Numerical Studies of 2D Free Surface Waves with Fixed Bottom

Year:    2002

Author:    Ping-Wen Zhang, Xiao-Ming Zheng

Journal of Computational Mathematics, Vol. 20 (2002), Iss. 4 : pp. 391–412

Abstract

The motion of surface waves under the effect of bottom is a very interesting and challenging phenomenon in the nature, we use boundary integral method to compute and analyze this problem. In the linear analysis, the linearized equations have bounded error increase under some compatible conditions. This contributes to the cancellation of instable Kelvin-Helmholtz terms. Under the effect of bottom, the existence of equations is hard to determine, but given some limitations it proves true. These limitations are that the swing of interfaces should be small enough, and the distance between surface and bottom should be large enough. In order to maintain the stability of computation, some compatible relationship must be satisfied like that of [5]. In the numerical examples, the simulation of standing waves and breaking waves are calculated. And in the case of shallow bottom, we found that the behavior of waves is rather singular.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2002-JCM-8927

Journal of Computational Mathematics, Vol. 20 (2002), Iss. 4 : pp. 391–412

Published online:    2002-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    22

Keywords:    Fixed bottom 2D surface wave Boundary integral method Linear analysis Energy analysis.

Author Details

Ping-Wen Zhang

Xiao-Ming Zheng