S弯进气道旋流的有效控制

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．

Effective Control of Swirl in an S-Shaped Diffuser

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.