Study on Bubble Pulsation and Jet Characteristics of Plasma Synthetic Jet Actuator for Ice Breaking

As a new type of low-energy unmanned aerial vehicle ice-breaking device, the working characteristics of plasma synthetic jet actuator (PSJA) in icing environment are still unclear. The working characteristics of plasma synthetic jet actuator (PSJA) with water in the cavity were experimentally studied, its external jet characteristics and internal bubble pulsation characteristics were mainly analyzed. The results show that the external jet characteristics are mainly related to the initial liquid level in the liquid phase discharge mode. When the initial liquid level is concave, the discharge will produce a needle-like jet, and when the initial liquid level is convex, the jet shape will be transformed into a barrel. The pulsation characteristics of bubbles in the cavity are mainly related to the geometric parameters of the exciter, the interaction between bubble and cavity and solid wall with outlet is different under different parameters.