S弯进气道旋流的有效控制  

Effective Control of Swirl in an S-Shaped Diffuser

作　　者：翁培奋[1] 郭荣伟[1] 

机构地区：[1]南京航空航天大学

出　　处：《上海交通大学学报》1994年第4期143-147,共5页Journal of Shanghai Jiaotong University

基　　金：航空部科学基金

摘　　要：本文提出一种新方法─—唇口转动与管道栅栏组合法，旨在进一步改善大攻角下Ｓ弯进气道内的畸变流场．实验研究表明，本法和无涡控６０°攻角下旋流比较，可降低旋流约７０％，并能综合提高进气道内的气流流动品质．This paper presents a new method to control the bulk swirl produced in an Sshaped air intake at high angle of attack,which is called the combination of variable lip and duct fence.The experimental results show that the flow characteristics including static and total pressures are improved and the distortions in velocity and pressure field are reduced sharply.

关 键 词：进气道 航空发动机 旋流控制 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]