Secondary Instability Control of Compressible Flow by Suction for A Swept Wing
The crossflow instability of a three-dimensional boundary layer is a main factor affecting the transition around the swept-wing. The threedimensional boundary layer flow affected by the saturated crossflow vortex is very sensitive to the high frequency disturbances, which foreshadows that the swept wing flow transition will happen. The primary instability of the compressible flow over a swept wing is investigated with nonlinear parabolized stability equations (NPSE). The Floquet theory is applied to analyze the influence of localized steady suction on the secondary instability of crossflow vortex. From the results, suction can significantly suppress the growth of the crossflow mode and secondary instability mode near the wall.
secondary instability crossflow vortex compressible flow suction
Xu Guoliang Fu Song
School of Aerospace, Tsinghua University, Beijing, 100084, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
472-474
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）