A Plasma Synthetic Jet Exciter Used in Wide Air Pressure Conditions

Abstract

A plasma synthetic jet exciter (103) used under wide pressure conditions is provided, which is composed of two parts: the bottom of the exciter (101) and the head of the exciter (102) assembled by threads; the bottom of the exciter (101) and the exciter The head of the device (102) is in the shape of a cylindrical box cover as a whole; the bottom of the device (101) includes: a discharge anode (201), a discharge cathode (202), an insulator (203), and a device housing (204); The ground center of device head (102) gets through hole, is used as the jet hole of synthetic jet. The exciter of the present invention utilizes the characteristic that the breakdown voltage of semiconductor creeping discharge is not sensitive to gas pressure, can be used reliably and stably in a wide range, and can solve the poor environmental adaptability encountered in the use process of the current plasma synthetic jet exciter , The problem of narrow working pressure.

Description

technical field [0001] The invention relates to plasma technology, in particular to a plasma synthetic jet exciter which utilizes semiconductor ceramics to work under wide pressure conditions. Background technique [0002] Plasma synthetic jet actuator is a type of plasma actuator that uses gas discharge to rapidly heat gas, increase gas pressure, generate synthetic jet under the action of internal and external pressure difference, and then apply effective disturbance to the flow field to produce flow control effect. Compared with traditional dielectric barrier plasma flow control actuators, the induction velocity of plasma synthetic jet actuators is greatly improved, exceeding 100m / s, so it is expected to play a role in the field of supersonic flow control. [0003] Plasma synthetic jet actuator is an actuator based on gas discharge, and its energy comes from gas discharge. According to the gas discharge theory, the breakdown voltage of the discharge is directly related to...

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Problems solved by technology

[0005] In view of this, in view of the outstanding problems of narrow working pressure range and poor environmental adaptability of current plasma synthetic jet actuators, the present invention proposes a plasma synthetic jet actuator 103 used under wide pressure conditions, consisting of a bottom 101 of the actuator and the exciter head 102 are assembled through threads; where:

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