Feedback Control of Flow Separation on NACA0024 Airfoil under Periodic Wall Oscillation by Means of DBD Plasma Actuator and FBG Sensor
Feedback Control of Flow Separation on NACA0024 Airfoil under Periodic Wall Oscillation by Means of DBD Plasma Actuator and FBG Sensor
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DBD等离子体驱动器和FBG传感器对周期性壁面振荡下NACA0024翼型流动分离的反馈控制
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Shinya Takekawa
中科院分区：
文献类型：
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作者：
T. Segawa;T. Jukes;Yasuchika Yuki;S. Maeda;T. Maeda;S. Ogata;Shinya Takekawa
通过使用介质阻挡放电 (DBD) 等离子体致动器和光纤布拉格光栅 (FBG) 传感器在测试段壁的振荡下研究了 NACA0024 翼型上周期性流动分离的反馈控制。切向射流由放置在翼型前缘的片状 DBD 等离子体致动器产生。 FBG 流量传感器安装在悬臂梁的根部，通过后缘周围的尾流检测悬臂尖端的振动。流动分离可以通过布拉格波长的标准偏差（B’）来检测。在 Re = 5.3×10 4 时，使用阈值水平 B’ = 0.006 的反馈算法成功地在周期性流动分离下进行了流动分离控制演示，结果表明流动分离可以减轻 20% 以上。此外，还开发了串型DBD等离子体致动器，将DBD等离子体致动器应用于金属和三维表面，并通过PIV研究了它们的诱导流动特性。
Feedback control of periodic flow separation on a NACA0024 airfoil has been investigated by using dielectric barrier discharge (DBD) plasma actuators and fiber Bragg grating (FBG) sensors under oscillation of the test section wall. A tangential jet is generated from sheet-type DBD plasma actuators placed at the leading edge of the airfoil. An FBG flow sensor is mounted at the root of a cantilever beam, which detects the vibrations of the cantilever tip by wake flow around the trailing edge. Flow separation can be detected by the standard deviation of Bragg wavelength (B’). A demonstration of flow separation control was conducted successfully under periodic flow separation by a feedback algorithm using a threshold level of B’ = 0.006 at Re = 5.3×10 4 and showed that the flow separation can be mitigated by more than 20%. In addition, string-type DBD plasma actuators were developed to apply DBD plasma actuators on metallic and three dimensional surfaces and their induced flow properties were investigated by PIV.
影响因子：
2.4
作者：
Jukes, Timothy N.;Choi, Kwing-So
通讯作者：
Choi, Kwing-So