
Accession Number : AD0661621
Title : DIFFRACTION OF WATER WAVES OVER BOTTOM DISCONTINUITIES.
Descriptive Note : Technical rept.,
Corporate Author : CALIFORNIA UNIV BERKELEY HYDRAULIC ENGINEERING LAB
Personal Author(s) : Hilaly,Nabil A.
Report Date : SEP 1967
Pagination or Media Count : 146
Abstract : The study is concerned with the problems of propagation of water waves over abrupt bottom discontinuities, where the depth changes from one uniform depth (nonzero) to another uniform depth (finite or infinite). The change of depth extends over an infinite line in space. In the first part, theoretical values of the reflection and transmission coefficients and the corresponding phase shifts have been obtained for waves moving over a stepshaped bottom parallel to the wave fronts. The problem is considered as a boundaryvalue problem in potentialflow theory. The second part is devoted to the problem of the determination of characteristics of waves propagating over a rectangular submarine channel with vertical sides. A mathematical formulation of the problem as a threedimensional boundaryvalue problem is given. (Author)
Descriptors : (*WATER WAVES, *PROPAGATION), (*DIFFRACTION, WATER WAVES), MATHEMATICAL MODELS, THEORY, BOUNDARY LAYER, WAVE PROPAGATION, MATHEMATICAL ANALYSIS, REFLECTION, PHASE SHIFT CIRCUITS, DIGITAL COMPUTERS, FLUID FLOW, SHALLOW WATER, OCEAN BOTTOM
Subject Categories : Physical and Dynamic Oceanography
Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE