EXPERIMENTAL STUDY ON NON-LINEAR WAVE BOUNDARY LAYERS

Abstract

A mechanical generation method of an asymmetric oscillatory flow has been proposed by the authors ( Tanaka et al., 1997, 1998 ), though, its applicability to an actual experiments has not been thoroughly examined yet. In the present study, laboratory experiments are carried out for an asymmetric oscillatory flow in a U-shaped oscillating tunnel to make comprehensive investigation on the validity of the generation method under both laminar and turbulent condition using air and water respectively as working fluid.