Experimental Study of Canard-Spanwise Pulsed Blowing on a Canard Configuration

Liu, Peiqing; Wen, Rui-Ying; Liu, Zhengang; Wu, Shu Qian

doi:10.2514/1.36854

Cited by 3 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, the studies on the aerodynamics of canard-wing-body configurations, has mainly been focused on vortical flow control over these bodies including flow control by spanwise pulsed blowing 10,11 and through developing active flow control actuator for delta wing in strake-delta wing configurations. 12 Having extended the existing knowledge on wing-canard interactions, the idea of using split canards was found to be an alternative way to enhance the aerodynamic performance of vehicles equipped with this type of control surface and operating at high angles of attack.…”

Section: Introductionmentioning

confidence: 99%

Canard flow improvement in a split canard configuration

Davari

Askari

Soltani

2014

Proceedings of the Institution of Mechanical Engineers, Part G:

View full text Add to dashboard Cite

Extensive low-speed wind-tunnel tests are performed to study the flow field structure over a dual-surface canard, known as split canard, in comparison to the conventional configurations. Surface pressure for both steady deflections and unsteady oscillations of the canard are measured and compared for both canard-alone and split-canard cases. The split canard shows a superior advantage at high angles of attack, where a delay in the vortex breakdown phenomena on the canard surface is observed. For the split-canard configuration, the downwash of the front canard reduces the effective angle of attack at the inboard section of the rear element which postpones formation of the leading-edge vortex. Furthermore, a region of considerably high suction was observed at front portion of the rear canard when compared with the isolated canard case. This can be thought of as the main mechanism of performance enhancement in split canards comparing to the conventional configurations.

show abstract

Section: Introductionmentioning

confidence: 99%