等离子体合成射流的能效特性实验研究

Experimental Research on Energy Efficiency of a Plasma Synthetic Jet

针对两电极火花放电等离子体合成射流发生器,提出以发生器出口射流动能与所耗电能之比的无量纲参数——能效因子η,用以表征合成射流发生器的能效特性;分别采用皮托管测量射流出口流速,采用功率计测量合成射流发生器耗用的电能。经过实验考察加载电参数、电极间距对射流发生器功率与射流速度的影响,从而得出能效因子η的变化规律。研究成果可为火花放电等离子体合成射流的应用提供参考。

A non-dimensional parameter η was presented,which is ratio of kinetic energy of actuator jet flow and electric energy,to characterize energy efficiency of synthetic jet actuator for dual-pole spark plasma synthetic jet actuator. Velocity of jet flow is measured by Pitot tube and electric energy is measured by dynamometer during the experiment. The variation rule of energy efficiency factor η can be summarized through observation and study on the impact of electric parameter and electrode spacing on jet velocity and power. This research finding is reviewed as a reference for further study on applies of spark discharge plasma synthetic jet.