Experimental and Numerical Investigation on Delta-Wing Post-stall Flow Control
Experimental and Numerical Investigation on Delta-Wing Post-stall Flow Control
复制标题
三角翼失速后流动控制的实验和数值研究
DOI:
10.1007/978-3-319-64519-3_15
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Breitsamter
中科院分区:
文献类型:
--
作者:
Buzica;Breitsamter
The flow around delta wings is dominated by a leading-edge vortex system, which induces increased near wall velocities above the wing hence producing high suction peaks. These are responsible for the lift needed at high angle of attack aircraft maneuvering. In the flight regime beyond stall the flow separating from the leading-edge encounters a very steep adverse pressure gradient and consequently doesn’t roll up into a vortex-like structure. Rather, encloses a massive dead-water region over the entire wing. With unsteady jet blowing at the leading edge additional momentum is created leading to a reattachment of the flow at the wing surface thus increasing the lift significantly. The investigated flow control method can be applied for extending the flight envelope, enhancing maneuvering capability and flight stability. This flow manipulation technique is investigated on a generic half wing model at a very high angle of attack (α = 45°). The investigations comprise wind tunnel testing, using force measurements and stereoscopic particle image velocimetry, and complementary scale resolving numerical simulations, for a detailed analysis of the unsteady phenomena.
登录
查看更多内容
影响因子:
9.6
作者:
C. Breitsamter
通讯作者:
C. Breitsamter
影响因子:
5.6
作者:
A. Kölzsch;S. Blanchard;C. Breitsamter
通讯作者:
C. Breitsamter
影响因子:
2.5
作者:
D. Hummel
通讯作者:
D. Hummel
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
O. Rediniotis;H. Stapountzis;D. Telionis
通讯作者:
D. Telionis
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
I. Gursul
通讯作者:
I. Gursul