Boussinesq 방정식을 이용한 크노이드파의 Bragg 반사 해석

Abstract

Numerical analysis for the Bragg reflection due to a sinusoidally and a doubly-sinusoidally varyingseabeds was performed by using a couple of ordinary diferential equations derived from the Boussinesqequations. Incident waves are a train of cnoidal waves. The effects of the dispersion and shape of seabed wereinvestigated. It is shown that the reflection of a sinusoidally varying seabed is enhanced by increasing thedispersion and the amplitude of a seabed. The reflection of waves over a doubly-sinusoidally varying seabed canalso be enhanced by increasing the amplitude of seabed decreasing the diference of wave numbers of seabedcomponents.