Effect of Random Inhomogeneities on Nonlinear Propagation of Water Waves

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概要

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• The effect of random bottom inhomogeneities on the propagation of weakly nonlinear surface water waves is investigated by making use of the derivative expansion method combined with the smoothing procedure. In the first-order smoothing approximation, the coherent component of the wave field is shown to be governed either by a generalized nonlinear Schrodinger equation for nonlinear modulated waves or by a generalized Korteweg-de Vries equation for nonlinear long waves. Change in the propagation velocity and damping of amplitude take place due to random inhomogeneities. The damping appears as pseudo-viscosity in the equation for the coherent component of weakly nonlinear waves.

• 社団法人日本物理学会の論文
• 1976-10-15

著者

• Kawahara Takuji

  Department Of Aeronautics And Astronautics Graduate School Of Engineering Kyoto University

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• Effect of Random Inhomogeneities on Nonlinear Propagation of Water Waves

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