Airplane forebody vortex flow control device
A flow control and precursor technology, which is applied in the direction of power plant, aircraft control, power plant layout/installation, etc., can solve the problems of reducing aircraft thrust, deterioration of intake/engine matching performance, and lower performance of air inlet, etc. Achieve the effect of reducing the flow field distortion index value, easy installation and maintenance, and remarkable effect
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[0011] Example 1
[0012] like figure 1 As shown in the figure, an aircraft front body vortex flow control device includes a front body vortex breaker 1 and three guide vanes 2. The front body vortex breaker 1 is installed along the flow direction above the ridgeline of the front body of the aircraft and in front of the inlet of the air inlet. ; 3 guide vanes 2 are installed in sequence behind the precursor vortex breaker 1, the original low-energy flow flows on the path, and the low-energy flow behind the precursor vortex breaker 1 is diverted so that it does not flow into the inlet of the intake port, Instead, it flows backwards along the groove between the intake shroud and the fuselage. The height of the precursor vortex breaker 1 is equivalent to that of the local vortex, and the length is 1.5 times the height. The height of the guide vane 2 is equal to the height of the local low-energy flow, the length is 1.8 times the height, and the included angle between the instal...
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