利用侧壁抽气进行二元风洞的侧壁干扰研究  

THE APPLICATION OF SIDEWALL SUCTION IN TWO DIMENSION WIND TUNNEL FOR STUDYING SIDEWALL INTERFERENCE

作　　者：陈志敏[1] 苏耀西[1] 

机构地区：[1]西北工业大学

出　　处：《气动实验与测量控制》1993年第2期33-39,共7页

摘　　要：通过抽吸模型周围的侧壁边界层,来研究二元风洞的侧壁干扰效应,试图用抽气理论和实验的方法,得到合理的侧壁抽气网板阻尼系数和抽气压力,以实现克服或减小侧壁边界层的干扰影响。在优化抽气状态下,理论和实验证明,抽气可使侧壁边界层扰动与抽气扰动近似相互抵消,明显改善了流场的二元性,使侧壁干扰显著减小,达到了基本上消除侧壁效应的目的。文中通过改变侧壁抽气量的方法,利用展向压力分布和油流谱的判断,对最佳抽气的可能性进行了探讨。In the present paper,the sidewall interference of two-dime-nsion wind tunnel is discussed by mean of sidewall boundary layer suctionaround model.In order to achieve overcoming and reduceing effect onsidewall boundary layer displacement,reasonably sidewall suction porousplate resistance coefficient and suction pressure are obtained by suctiontheory and experimental method.On the basis,optimum suction theoryis presented Under optimum suction,suction theory and experiment provcthat sidewall boundary layer disturbance and suction disturbance wasoffseting each other as sidewall boundary layer displacment was changed.Thereby a flow with no sidewall interference can be established in thetwo dimension wind tunnel with the changed suction experimental method,possibility of optimun suction is discussed.

关 键 词：二元风洞 翼型 试验 侧壁效应 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程]