Abstract
This paper deals with an experimental study on flow-induced waves generated on a thin film under shear loading subjected to a fluid flow in a narrow passage. The experiment is carried out to investigate the deformed shape of the thin film with various values of shear loading, and the vibration characteristics of the flow-induced wave generated on the thin film. As a result, it is clarified that the flow-induced wave occurs to the thin film caused by the propagation of corrugation due to the fluid flow in the narrow passage. The critical flow velocity of the flow-induced wave drastically decreases caused by the generation of corrugation on the thin film due to the shear loading. Moreover, it is clarified that the traveling direction of the flow-induced wave is determined by the deformed shape of corrugation and fluid flow direction. The flow-induced wave propagates diagonally, almost across the fluid flow direction.
