題目：Characteristics of Plasma Synthetic Jet and Its Application in Active Flow Control

報(bào)告人：耿璽博士（航空學(xué)院航空航天交叉研究院）

時(shí)間：2019年4月10日(周三)上午10:30

地點(diǎn)：明故宮校區(qū)A18-209會(huì)議室

主辦單位：非定常空氣動(dòng)力學(xué)與流動(dòng)控制工信部重點(diǎn)實(shí)驗(yàn)室、科協(xié)、航空學(xué)院、航空航天交叉研究院

Abstract：

The plasma flow control technique is becoming one of the most promising methods because of its simple structure, fast response, no moving mechanical parts and so on. The present work discusses the plasma synthetic jet actuator (PSJA), one kind of plasma actuators. Detailed phase-lock schlieren measurement was conducted to study the physical evolution process of the structures inside a single plasma synthetic jet actuator driven by a high voltage nanosecond pulse. Besides the experimental measurement, the numerical simulation is also conducted to study the detailed characteristics of the PSJA. For the purpose of practical use, the three dimensional PSJA is designed and the interaction of the compressed waves and jets induced by each actuator is studied by schlieren measurement. Then, both the experimental measurement and simulation are used to study the PSJA flow control mechanisms over a supersonic wedge. It is found the compression wave is the main reason which affects the oblique wave and boundary layer of the supersonic wedge model.

報(bào)告人簡(jiǎn)介：

    耿璽，講師，2016年獲南京航空航天大學(xué)流體力學(xué)博士學(xué)位。長(zhǎng)期從事實(shí)驗(yàn)空氣動(dòng)力學(xué)研究，主要的研究方向?yàn)榱鲃?dòng)控制、大迎角非定常空氣動(dòng)力學(xué)和流動(dòng)測(cè)量技術(shù)。先后主持了國(guó)家自然基金（青年科學(xué)基金）、江蘇省自然科學(xué)基金（青年基金項(xiàng)目）、中國(guó)博士后科學(xué)基金和江蘇省博士后科研資助計(jì)劃。目前已在多個(gè)國(guó)內(nèi)外期刊上發(fā)表了學(xué)術(shù)論文。