抄録
Forced vertical vibration of an immiscible liquid-liquid interface, enclosed by a stationary cylindrical wall, can induce a non-zero time-averaged flow, or streaming, leading to a large-scale re-circulating flow when the fluids are driven nearly at the natural frequency of the axisymmetric inter face wave. In this study we extracted time-averaged component in the flow by obtaining phase-averaged velocities. The mechanisms responsible for the streaming phenomenon are investigated by measuring the response of the interface wave and streaming to excitation at variable amplitude and frequency, and by measuring the streaming velocities using the particle image velocimetry (PIV) method.