The flow field characteristics of novel synthetic jet actuator with double outlet

Designed a novel synthetic jet actuator with double outlets,and tested the flow field characteristics of the actuator exits,including both phase-locked instantaneous and ensemble-averaging flow field structure,applying non-contact particle image velocimetry(PIV).The results show that there is an obvious suction effect in one of the actuator outlets,and a centralized jet is formed downstream the other outlet,with the characteristics of synthetic jet flow field.The suction effect of novel synthetic jet actuator formed a new micro-pump working mechanism on the basis of conventional actuator,not only amplifying the energy of synthetic jet,but also realizing the directional fluid transportation in different regions.These characteristics of external flow-field will be more conducive to the flow control such as jet vector control or boundary layer separation control.