The Growth of Ocean Waves Under the Action of the Wind.

Abstract : This study provides some insight to the differences between the wave-induced flow quantities measured in a fixed and wave-following transformed coordinate system. The wave-induced quantities have different flow characteristics depending on the relative magnitude of the mean free stream speed with respect to the wave celerity. In order to detect the instantaneous critical layer mechanism associated with the modified Miles' theory, a wind speed just above the wave celerity should be used. (Author)