激励参数对等离子体EHD加速效应影响的试验研究

在静止空气中,进行了激励参数对等离子体EHD加速效应影响的试验研究。在激励频率固定的情况下,诱导气流速度随激励电压的增加而近似线性地增加;在激励电压固定的情况下,诱导气流速度并非随频率的增加而线性增大,而是存在一个最优频率,在这个频率下测得的诱导气流速度最大。试验获得的激励电压、频率对诱导气流速度影响的定量关系有助于进一步揭示辉光放电等离子体EHD的机理,也为等离子体在流动控制方面的应用奠定了基础。

Experimental Studies of Excitation Parameters' Influences on Plasma EHD Acceleration Effect

Experimental studies on excitation parameters' influences on plasma EHD acceleration effect are carried out in quiescent air.Under fixed excitation frequency,the induced airflow velocity increases almost linearly when the excitation voltage increases;While under fixed excitation voltage,the induced airflow velocity doen't increases linearly when the excitation frequency increases.In fact,it gets its maximum value under an optimal frequency.The results of the experiments can help to discover the mechanism of glow discharge plasma EHD,and to establish the foundation for the application of plasma flowing control.