The Aerodynamic Design and Aeroacoustics Estimation of High-lift for Civil Transportation
In nowadays,a good high-lift device means not only excellent aerodynamic properties and low structure weight but also exposure lower noise level to accord with the standard of FAA. Hence, the aeroacoustics estimation is necessary during the aerodynamic design of the high-lift system. In this Paper, the high-lift system with both leading edge device and trailing edge device are designed in 2-D based on a supercritical airfoil. The gap and overlap of slat and flap for landing condition is optimized by Panel method firstly, and then be verified by CFD method. Compared with the aerodynamic characteristic of clean supercritical airfoil, the design objective is achieved according to the maximum of lift coefficient and the stall angle. The multi-airfoils with slat and main are calculated to get the aeroacoustics level. The noise source location, frequency spectrum and the directivity pattern at eight degree angle of attack are obtained by unsteady RANS analysis and FFT (Fast Fourier Transform ). The information about the noise source is obtained to carry on the noise control in the future.
high-lift civil transportation airframe noise optimization CFD
Hao Xuan Zhang Weimin
China Academy of Aerospace Aerodynamics,17 Yungang West Road,Beijing,100074,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
249-252
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）