Heat Characteristics of Glow Discharge at Low Pressure with Supersonic Gas Flow

7th Conference on Low temperature Plasma in the Processes of Functional Coating Preparation

Timerkaev, B.A.^1 ; Amirzyanov, D.R.^1 ; Israfilov, D.I.^1

Kazan National Research Technical University Named by A.N.Tupolev, K.Marx str., 10, Kazan

420111, Russia^1

关键词: Confined areas;    Experimental investigations;    Gas temperature;    Glow discharge plasmas;    Heat characteristics;    Neutral gas temperatures;    Neutral particles;    Supersonic gas flows;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/669/1/012063/pdf
DOI  :  10.1088/1742-6596/669/1/012063

来源: IOP

【 摘 要 】

Here, the results of experimental investigations on neutral gas temperature distribution over glow discharge plasma under transverse supersonic gas flow through a confined area of the discharge space. It is found that in the flow area the gas temperature decreases sharply. In addition, this leads to further increase of neutral particles concentration in flow area and, as a result, sustain existence of discharge at extremely low pressures.