Flow control device of supersonic flow field

The invention provides a flow control device of a supersonic flow field. The flow control device comprises a gas suction hole, a gas suction passageway, a gas blowing passageway, a gas blowing hole and a flow jetting structure, wherein the gas suction hole is used for sucking in gas flow in the supersonic flow field, the gas suction passageway is communicated with the gas suction hole and used for reducing the speed at which the gas suction hole sucks in the gas flow, the gas blowing passageway is communicated with the gas suction passageway and used for increasing the speed of the gas flow, the gas blowing hole is communicated with the gas blowing passageway and used for blowing out the gas flow in the gas blowing passageway to the supersonic flow field, and the flow jetting structure is used for jetting the gas flow towards the gas blowing passageway. In the flowing process of the supersonic flow field, a part of the gas flow enters the gas suction passageway through the gas suction hole so that suction control over the supersonic flow field can be achieved; the gas flow is then injected into the supersonic flow field through the gas blowing passageway and the gas blowing hole so that the blowing removal control over the supersonic flow field can be achieved; the flow jetting structure jets the gas flow towards the gas blowing passageway so that under the condition that the position and the strength of the incident shock waves are changed, the continuous suction and blowing removal conducted on the supersonic flow field can be achieved, stable flowing of the supersonic flow field can be ensured, and the working range of the flow control device can be widened.