Plasma generating device with dual functions of flow control and ice prevention and removal and generating method

Abstract

The invention provides a plasma generating device with dual functions of flow control and ice prevention and removal. The plasma generating device comprises a first high-voltage electrode (101), a second high-voltage electrode (201), a grounding electrode (301), a semiconductor coating (401) and an insulating medium (501), the device is utilized to form a plasma generation system with double functions of flow control and ice prevention and removal, and a plasma generation method with double functions of flow control and ice prevention and removal is generated. A bare electrode-insulating medium grounding electrode structure of a traditional surface dielectric barrier discharge plasma exciter is optimized, a semiconductor coating is prepared on a selected insulating medium surface area by adopting a spraying process, a new electrode is prepared on the surface or the edge of the coating, and the new electrode is connected with a high-voltage end of a power supply through a connecting diode. And adjusting the voltage waveform on the electrode surface. According to the invention, by adjusting the excitation voltage, the device can realize free switching between flow control and anti-icing and de-icing functions; on the premise that one power supply is still kept, the heating area of the dielectric surface of the exciter is greatly enlarged, and the anti-icing and de-icing effects of the original exciter are improved.

Description

technical field [0001] The invention relates to the field of plasma technology, in particular to a flow control / anti-icing dual-mode switching plasma generating device and a generating method. Background technique [0002] When the aircraft is flying at a high angle of attack, the incoming flow and the surface of the wing are prone to flow separation, which significantly reduces the lift of the aircraft and increases the flight resistance. It provides a new idea for suppressing flow separation and active flow control methods. Surface dielectric barrier discharge plasma , due to rapid response, low power consumption, and easy arrangement of generating devices, the application in the field of flow control is becoming more and more mature. At the same time, when the aircraft is flying under icing weather conditions, the surface ice may lead to a decrease in lift-to-drag ratio, deterioration of maneuverability, and a sharp increase in flight weight, which seriously threatens fli...

AI Technical Summary

Problems solved by technology

Existing surface dielectric barrier discharge plasma generating devices can only achieve a single function of flow control or anti-icing, and cannot take care of both

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