The scattering of an obliquely incident surface wave by a submerged fixed vertical plate

1984 ◽  
Vol 25 (6) ◽  
pp. 1780-1783 ◽  
Author(s):  
Birendranath Mandal ◽  
Sudip Kumar Goswami
1983 ◽  
Vol 132 ◽  
pp. 395-406 ◽  
Author(s):  
Allen T. Chwang

A porous-wavemaker theory is developed to analyse small-amplitude surface waves on water of finite depth, produced by horizontal oscillations of a porous vertical plate. Analytical solutions in closed forms are obtained for the surface-wave profile, the hydrodynamic-pressure distribution and the total force on the wavemaker. The influence of the wave-effect parameter C and the porous-effect parameter G, both being dimensionless, on the surface waves and on the hydrodynamic pressures is discussed in detail.


1992 ◽  
Vol 59 (2) ◽  
pp. 349-355 ◽  
Author(s):  
Z. L. Li ◽  
J. D. Achenbach ◽  
I. Komsky ◽  
Y. C. Lee

The reflection and transmission of a plane time-harmonic surface wave which is obliquely incident on the edge of a quarter space is investigated theoretically, numerically, and experimentally. The theoretical formulation of the problem, which takes advantage of the translational invariance along the edge of the quarter space, is reduced to a system of singular integral equations along axes normal to the edge, for the defracted displacement components on the faces of the quarter space axes normal to the edge. The truncation of these equations leads to the definition of reflection and transmission coefficients, R and T. The equations are solved for R, T, and the diffracted displacements by the use of the boundary element method. A self-calibrated experimental technique is proposed which deploys four surface wave transducers, and which removes the effects of variable coupling between the transducers and the faces of the quarter space as the positions of the transducers are varied. The technique is particularly suited for the measurement of |R/T| as a function of the angle of incidence. Excellent agreement is observed between numerically and experimentally obtained values.


2018 ◽  
Vol 7 (5) ◽  
pp. 18008-18008 ◽  
Author(s):  
Shuo Liu ◽  
Tie Jun Cui ◽  
Ahsan Noor ◽  
Zui Tao ◽  
Hao Chi Zhang ◽  
...  

Author(s):  
T. R. Faulkner

The effect of a vertical barrier, fixed in an infinitely deep sea, on normally incident surface waves of small amplitude was first considered by Ursell (1) and generalizations which retain the two-dimensional aspects of the problem have subsequently been considered by John (2) and Lewin (3). The fluid motion due to the flexural vibrations of a barrier of finite depth has been considered by Alblas (4), the motion in this case being three-dimensional.


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