Flow control device of supersonic flow field

Abstract

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.

Description

technical field [0001] The invention relates to the field of aerodynamics, in particular to a flow control device for a supersonic flow field. Background technique [0002] Flow control technology in supersonic flow field is a very important research direction in the field of aerodynamics. Supersonic flow has high velocity and large momentum, and complex phenomena such as shock boundary layer interference and flow separation exist in the flow field. The flow control schemes for supersonic flow field are jet control, suction control or blowing control. [0003] Jet flow control is to change the structure of the flow field by injecting a gas jet into the supersonic flow field to achieve the purpose of control; however, this kind of control has limitations. When the required jet gas flow rate is large, it will be unfavorable for some occasions ( Such as aircraft) applications, the control range is narrow. Suction control is to set up suction holes on the boundary of the solid...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flow control device for a supersonic flow field to solve the technical problem of a narrow flow control range for a supersonic flow field in the prior art

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