Ma4-level supersonic speed axisymmetric air inlet channel and method based on adjustable drainage seams
An air inlet, supersonic technology, which is applied to the air inlet of the turbine/propulsion unit, jet propulsion unit, gas turbine unit, etc., can solve the problems of low Mach number non-starting and mismatch of air inlet/engine flow, etc. Achieve the effect of reducing Mach number, simplifying structure and improving starting performance
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[0028] The present invention will be further explained in conjunction with the accompanying drawings.
[0029] The present invention is mainly directed to the start and flow matching of the geometric ultrasonic speed shaft symmetrical intake channel, which proposes a MA0-4 supersonic axis symmetric intake and flow regulation method based on a discharge slit controllable switch. .
[0030] A turbine engine flow demand Figure 5 According to the medium dashed line, the lower triangular dashed line is the upper limit of the turbine engine, the upper triangular dashed line is the lower limit of the turbine engine, that is, the traffic demand is a section. The numerical simulation is a geometric (non-discharged sewing) intake trail capture flow is greater than the engine traffic demand, and the minimum starting horse number mA = 3, there is a start and airway / engine flow matching problem. In order to turn the supersonic speed axis symmetrical intake channel work range to 0-4 Mach (onl...
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