Investigation of shock reflection on a wedged-surface with low temperature Plasmas

• Main Authors: Cheng-FuHsieh, 謝承甫
• Other Authors: Fan-Ming Yu
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/35617659076757555190

碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 98 === The study on a thirty-five degree wedged model and fifty degree wedged model with and without low temperature plasma induced ionic wind under the interaction of a planar shock wave have been done by the color Schlieren flow visualization technique and the dynamic pressure measurement method. It has been shown that with the incident shock Mach number of the range 1.35 to 1.64 there are Mach reflection and regular reflection for wedged models of 35° and 50° respectively. The color Schlieren photographs show that that the angle between incident shock and reflected shock become larger as Mach number increased. These angles do not change much under the influence of the ionic wind. The measured dynamic pressure of reflection shock wave also indicates that its strength is unchanged for models with lower incident Mach number under the influence of ionic wind. Compare with the experimental results with influence of low temperature corona，it has been shown that the reflection shock wave becomes weaker as the incident shock wave pass through the corona. Hence, it is concluded that the corona effect is more efficient than the ionic wind.