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【多选题】
Main methods of suppress the airflow separation are: ____.
A.
Using vortex generator.
B.
Using air blowing control at separation position
C.
Launch a high-speed jet at the leading edge of the wing.
D.
Control the angle of attack of the wing.
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】The vortex lift generated by the leading-edge vortex can reach ____ of the total lift.
A.
More than 10%
B.
More than 20%
C.
More than 30%
D.
More than 40%
【多选题】The influences of wingtip trailing vortex are: ____.
A.
The efficiency of the airport
B.
The efficiency of aircraft’s take-off and landing
C.
The lift of the plane
D.
Increase the induced drag