空气动力学学报
空氣動力學學報
공기동역학학보
ACTA AERODYNAMICA SINICA
2014年
3期
383-387
,共5页
主动流动控制%非零侧滑%大迎角%细长体%侧向力%控制规律
主動流動控製%非零側滑%大迎角%細長體%側嚮力%控製規律
주동류동공제%비령측활%대영각%세장체%측향력%공제규률
active flow control%non-zero sideslip%high angle of attack%slender body%side force%control law
通过风洞实验方法研究了非零侧滑角状态下,大迎角细长体模型的侧向力和偏航力矩变化规律。并且应用主动流动控制技术,对非零侧滑角模型的侧向力和偏航力矩加以控制,研究其有效控制的侧滑角范围和控制规律。研究结果表明:在迎角α=55°、侧滑角β=-24°~+24°范围内,改变细长体模型头部微扰动摆振片的平衡周向角位置(有效周向角位置在±16°之间变化),模型侧向力和偏航力矩呈线性变化规律。此项力和力矩线性控制技术为飞行器在大迎角高机动飞行发生侧滑时,实现恢复及保持安全姿态飞行,提供一种有效飞行控制新方法。
通過風洞實驗方法研究瞭非零側滑角狀態下,大迎角細長體模型的側嚮力和偏航力矩變化規律。併且應用主動流動控製技術,對非零側滑角模型的側嚮力和偏航力矩加以控製,研究其有效控製的側滑角範圍和控製規律。研究結果錶明:在迎角α=55°、側滑角β=-24°~+24°範圍內,改變細長體模型頭部微擾動襬振片的平衡週嚮角位置(有效週嚮角位置在±16°之間變化),模型側嚮力和偏航力矩呈線性變化規律。此項力和力矩線性控製技術為飛行器在大迎角高機動飛行髮生側滑時,實現恢複及保持安全姿態飛行,提供一種有效飛行控製新方法。
통과풍동실험방법연구료비령측활각상태하,대영각세장체모형적측향력화편항력구변화규률。병차응용주동류동공제기술,대비령측활각모형적측향력화편항력구가이공제,연구기유효공제적측활각범위화공제규률。연구결과표명:재영각α=55°、측활각β=-24°~+24°범위내,개변세장체모형두부미우동파진편적평형주향각위치(유효주향각위치재±16°지간변화),모형측향력화편항력구정선성변화규률。차항력화력구선성공제기술위비행기재대영각고궤동비행발생측활시,실현회복급보지안전자태비행,제공일충유효비행공제신방법。
With non-zero sideslip angle condition,the changing laws of side force and yawing moment of a slender body at high angles of attack were investigated through wind tunnel testing.An active flow control technique was used to control the slender body's side forces and yawing moments at non-zero sideslip angle, so as to study the controlling law and the range of effective controlling sideslip angles as well.The results showed that at the condition ofα=55°and the range of sideslip angleβ=-24°~+24°,the side forces and ya-wing moments showed linear changing laws at the effective azimuthally angle ranges (±16°)through changing the equilibrium position of a fast swing micro tip-strake installed on the slender model.When the phantom yaw movement of high agility combat aircraft occurs,this active linear flow control technique could be a new possible flight controlling method for aircraft recovering and safety.