Wave propagation problem in three-dimensional inhomogeneous isotropic layer

2020 ◽  
Author(s):  
A. I. Bolgova
Keyword(s):  
Wave Propagation ◽  
Three Dimensional ◽  
Propagation Problem ◽  
Isotropic Layer ◽  
Wave Propagation Problem

Wave Diffraction Around Three-Dimensional Bodies in a Current

1996 ◽  
Vol 118 (4) ◽  
pp. 247-252 ◽  
Author(s):  
K. F. Cheung ◽  
M. Isaacson ◽  
J. W. Lee
Keyword(s):  
Wave Propagation ◽  
Three Dimensional ◽  
Integral Equation Method ◽  
Rigid Wall ◽  
Propagation Problem ◽  
Wave Forces ◽  
Linear Wave ◽  
Wave Propagation Problem ◽  
Linear Wave Propagation ◽  
A Current

The effects of a collinear current on the diffraction of regular waves around three-dimensional surface-piercing bodies are examined. With the current speed assumed to be small, the boundary-value problem is separated into a steady current problem with a rigid wall condition applied at the still water level and a linear wave propagation problem in the resulting current field. The boundary conditions of the wave propagation problem are satisfied by a time-stepping procedure and the field solution is obtained by an integral equation method. Free surface profiles, runup, and wave forces are described for a vertical circular cylinder in combined waves and a current. The current is shown to affect significantly the steady drift force and runup predictions. Comparisons of the computed wave forces are made with a previous numerical solution involving a semi-immersed sphere in deep water, and indicate good agreement.

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