High-frequency response vector nozzle

Abstract

The invention discloses a high-frequency response vector nozzle. The high-frequency response vector nozzle comprises a double throat fluidic pushing power vector nozzle (1), a plasma synthesis fluidicgenerator (6), and direct current and high voltage pulsed power supply (11); the double throat fluidic pushing power vector nozzle (1) comprises an upstream throat (2), a downstream throat (5), and an in-throat hollow cavity (4) arranged between the upstream throat and the downstream throat, and a fluidic hole (3) is formed in the front of the upstream throat; and high-frequency jet flow is generated by the plasma synthesis fluidic generator (6) under the stimulation of the direct current and high voltage pulsed power supply (11), the high-frequency jet flow is ejected into the fluidic hole (3), separation is generated in the in-throat holllow cavity (4) in a flowing mode, and flow field unevenly distributed in the lateral direction is generated in the in-throat hollow cavity (4), so thatthe air inlet condition of the downstream throat (5) is no longer even, thus main ejection flow is subjected to be deflected, high-frequency pushing power vector is obtained, and the high-frequency is 10 Hz-500 Hz.

Description

technical field [0001] The invention belongs to the field of aerodynamic active flow control, in particular to a high-frequency response vector nozzle. Background technique [0002] After more than half a century of exploration and research, researchers in the field of aerodynamics have fully understood the aerodynamic and thermodynamic properties of simple axisymmetric structures / two-dimensional rectangular nozzles. But in recent decades, due to the improvement of aircraft maneuverability, stealth performance, propulsion system weight and other requirements, the simple configuration of the nozzle can no longer meet the needs of the development of modern military weapons. In order to meet the requirements of stealth and low propulsion system weight, it is urgent to design a high-frequency response vector nozzle. [0003] In the existing research, there are continuous gas source, strong synthetic jet generated by combustion, zero-mass synthetic jet generator, etc., which are...

AI Technical Summary

Problems solved by technology

The continuous air source is used as the air source to control the jet, which is easy to implement under laboratory conditions, but in real aircraft, whether it is the air source, the pressure pipeline, or the air source control system, it will increase the weight of the aircraft and increase the complexity of the system. degree; the method of combustion to produce strong synthetic jets, the fuel and gas supply are not easy to solve; the working fluid required for zero-mass jets is the mainstream of the outside world, and there is no need to consider issues such as gas sources and pressure pipelines, and the energy consumption is relatively small, but The maximum velocity that can be induced by the traditional zero-mass jet is on the order of 0-80m / s, which is not suitable for transonic conditions

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