Characterization of Surface Plasma-Induced Wall Flows Through Velocity and Temperature Measurements
Characterization of Surface Plasma-Induced Wall Flows Through Velocity and Temperature Measurements
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DOI：
10.2514/1.17321
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发表时间：
2006-04
期刊：
影响因子：
2.5
通讯作者：
T. Jukes;K. Choi;G. Johnson;S. Scott
中科院分区：
文献类型：
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作者：
T. Jukes;K. Choi;G. Johnson;S. Scott
为了研究用于边界层控制的射频等离子体激励器，在初始静止的空气中对弱电离表面辉光放电等离子体周围的诱导气流进行了研究。热线和冷线风速仪已被用来研究周围的对称和非对称电极配置的速度和温度分布。等离子体似乎将动量耦合到环境空气中，使得其驱动层流壁射流远离电极中心线。温度测量结果表明，在距离等离子体1 mm处，空气温度上升2°C，并且流动似乎不是浮力驱动的。观察到的最大速度为2.5 m/s，表明诱导流将足够强，可用于低速试验设施中的流控应用。
An investigation into the induced airflow around weakly ionized surface glow discharge plasma has been performed in initially static air to study radio-frequency plasma actuators designed for the use of boundary-layer control. Hot-wire and cold-wire anemometry have been used to study the velocity and temperature distribution around a symmetric and an asymmetric electrode configuration. The plasma appears to couple momentum into the ambient air such that it drives a laminar wall jet away from the electrode centerline. Temperature measurements indicate an air temperature rise of 2°C at 1 mm from the plasma, and the flow does not appear to be buoyancy driven. A maximum velocity of 2.5 m/s was observed, indicating the induced flow will be strong enough for flow control applications in low-speed test facilities.