Thermal Characterization of a DBD Plasma Actuator: Dielectric Temperature Measurements using Infrared Thermography
Thermal Characterization of a DBD Plasma Actuator: Dielectric Temperature Measurements using Infrared Thermography
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DOI：
10.2514/6.2010-5102
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发表时间：
2010-06
期刊：
影响因子：
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通讯作者：
R. Joussot;V. Boucinha;Regine Weber-Rozenbaum;H. Rabat;A. Leroy-Chesneau;D. Hong
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文献类型：
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作者：
R. Joussot;V. Boucinha;Regine Weber-Rozenbaum;H. Rabat;A. Leroy-Chesneau;D. Hong
利用等离子体作动器进行主动流动控制以改善飞行器的气动性能是当前研究的热点。这些致动器之一在于通过在电介质表面处产生非热等离子体来使用表面电介质阻挡放电（DBD）。等离子体放电诱导低速气流，即所谓的“离子风”，可用于改变外部流动。在这项研究中，我们专注于DBD致动器的热效应的描述，以有助于更好地理解与流的相互作用的机制。电介质表面的温度首先在等离子体开启的情况下确定，其次在切断放电之后确定。对所施加电压的几个振幅和频率进行测量。该研究包括两个部分：第一种方法是在静止的空气中进行测量，第二种方法是研究在放电上的外边界层对介电温度的影响。
Active flow control by plasma actuators is currentl y under investigation in order to improve the aerodynamic performance of vehicles. One of these actuators consists in using a surface dielectric barrier discharge (DBD) by creat ing a non-thermal plasma at the dielectric surface. The plasma discharge induces a low-velocity airflow, the so-called “ionic wind”, which can be used to modify external flows. In this study, we focus on the description of the thermal effect of a DBD actuator in order to contribute to a better understanding of the mechanisms of interaction with the flow. The te mperature of the dielectric surface was first determined with the plasma on and secondly af ter switching off the discharge. The measurements were conducted for several amplitudes and frequencies of the applied voltage. The study comprised two parts: in the first, measur ements were performed in quiescent air, and in the second, the influence of an external bou ndary layer over the discharge on the dielectric temperature was investigated.