The Gravity-Capillary Wave Interaction Applied to Wind-Generated,Short-Gravity Waves.

摘要

The gravity-capillary wave interaction has been simplified for the special case where one component of the interacting triad is a short-gravity wave. Wind-speed effects have been included in an ad hoc manner by forcing the dispersion relation to conform to that found in microwave scattering experiments. The results show that the interaction may be envisioned as occuring between the short-gravity wave and a capillary wave whose group speed equals the phase speed of the gravity wave. The interaction dies out as the wave number of the gravity wave decreases, having a k to the 5/2 power dependence in the no-wind case. Comparisons with more accurate numerical evaluations of the interaction are given. (Author)