抄録
A fluid transport device utilizing a diffuser is investigated based on an experiment. The fluid in a diffuser was excited by the reciprocating motion of a piston integrated in the side wall. The flow fields was visualized by a laser sheet and a high-speed camera. The velocity fields are calculated by the particle image velocimetry based on the captured movies. Since the waveform of the sum of the inlet and the outlet flow rate agrees well with that of flow rate calculated based on the temporal displacement of the piston, the present PIV results can be said to be valid. Moreover, the amplitude of flow rate fluctuation at the outlet was larger about 3.5 times than that at the inlet. It implies the present device can transport fluid from an inlet to an outlet.
