Application of a 'radiation type' boundary condition to the wave-porous bed problem.

tion of particular terms in the equations of motion allow analytic solution of the coupled problem and clarified the influence of the boundary condition. (A) (Microfiche) Many coastal states, and in particular North Carolina, have had to address the problem of the effects of coastal sediments having been transported, usually under severe oceanic and atmospheric storm conditions. This is a study to understand the physics governing the transport of coastal sediments and of the interactive effects between the oceanic fluid and sediment media. The porous bed effects and their relative importance upon an Airy wave in 'intermediate' and 'shallow' water depths was investigated. Particular attention is directed towards the bottom boundary condition to be used, becuase it will have significant effects on the wave and bed flow properties, especially in the boundary layer. A large number of assumptions are made which limit practical application to a certain extent, but judicious dele