TY - GEN
T1 - Aeroelastic study on a flexible delta wing
AU - Quan, J. G.
AU - Ye, Z. Y.
AU - Zhang, W. W.
PY - 2014
Y1 - 2014
N2 - Numerical simulation of aeroelastic analyses for a flexible delta wing at high angle of attack is a hard research. In this work, the aeroelastic analysis of a 70-degree cropped delta wing is studied using a computational aeroelastic solver. The aeroelastic solver couples a Navier-Stokes code with structural motion equations. It's shown that, with the angle of attack increasing, the leading-edge vortices breakdown, and the location moves forward. When vortex breakdown is present over the wing, the unsteady fluctuation characteristics of flow become highly obvious. The external excitation loads exerted on the wing will induce a buffet phenomenon, and has a significant effect on the aeroelastic characteristics of the wing. Before the vortex breakdown, the aeroelastic instability presents itself as just a simple flutter. However, after the vortex breakdown, the aeroelastic phenomenon presents neither a simple flutter, nor a simple buffet, but a complex problem including both flutter and buffet.
AB - Numerical simulation of aeroelastic analyses for a flexible delta wing at high angle of attack is a hard research. In this work, the aeroelastic analysis of a 70-degree cropped delta wing is studied using a computational aeroelastic solver. The aeroelastic solver couples a Navier-Stokes code with structural motion equations. It's shown that, with the angle of attack increasing, the leading-edge vortices breakdown, and the location moves forward. When vortex breakdown is present over the wing, the unsteady fluctuation characteristics of flow become highly obvious. The external excitation loads exerted on the wing will induce a buffet phenomenon, and has a significant effect on the aeroelastic characteristics of the wing. Before the vortex breakdown, the aeroelastic instability presents itself as just a simple flutter. However, after the vortex breakdown, the aeroelastic phenomenon presents neither a simple flutter, nor a simple buffet, but a complex problem including both flutter and buffet.
UR - http://www.scopus.com/inward/record.url?scp=84896638367&partnerID=8YFLogxK
U2 - 10.1201/b16699-60
DO - 10.1201/b16699-60
M3 - 会议稿件
AN - SCOPUS:84896638367
SN - 9781138026360
T3 - Advanced Engineering and Technology - Proceedings of the 2014 Annual Congress on Advanced Engineering and Technology, CAET 2014
SP - 365
EP - 372
BT - Advanced Engineering and Technology - Proceedings of the 2014 Annual Congress on Advanced Engineering and Technology, CAET 2014
PB - Taylor and Francis - Balkema
T2 - 2014 Annual Congress on Advanced Engineering and Technology, CAET 2014
Y2 - 19 April 2014 through 20 April 2014
ER -