密度流界面現象の三次元性に関する実験

Abstract

A series of experiments on the interfacial waves which emerge within the transitionalrange between laminar and turbulent flow was conducted. These waves have well describedtwo-dimensional chracteristics such as the steep configuration and cusped breaking.In this study, the interfacial visualization of lock exchange flow was achieved by thechemical reaction. The size of the interfacial waves tends to become smaller with the decreasein the inner scale of boundary layer. Common features between interfacial structure of thestratified flow and wall boundary layers are discussed.Besides the above features, another phenomenon is found in the curved channels, wheresecondary currents in the upper layer maintain the outer side mixing layer very thin.