Experimental Investigation of Supersonic Low Pressure Air Plasma Flows Obtained with Different Arc-Jet Operating Conditions

被引：0

作者：

Lago, Viviano ^{[1
]}

Ndiaye, Abdoul-Aziz ^{[1
]}

机构：

[1] CNRS, Lab ICARE, F-45071 Orleans 2, France

来源：

28TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS 2012, VOLS. 1 AND 2 | 2012年 / 1501卷

关键词：

Air plasma; low pressure; supersonic flow; plasma diagnostics; SPECTROSCOPY; ENTHALPY;

D O I：

10.1063/1.4769706

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A stationary arc-jet plasma flow at low pressure is used to simulate some properties of the gas flow surrounding a vehicle during its entry into celestial body's atmospheres. This paper presents an experimental study concerning plasmas simulating a re-entry into our planet Optical measurements have been carried out for several operating plasma conditions in the free stream, and in the shock layer formed in front of a flat cylindrical plate, placed in the plasma jet. The analysis of the spectral radiation enabled the identification of the emitting species, the determination of the rotational and vibrational temperatures in the free-stream and in the shock layer and the determination of the distance of the shock to the flat plate face. Some plasma fluid parameters like, stagnation pressure, specific enthalpy and heat flux have been determined experimentally along the plasma-jet axis.

引用

页码：1423 / 1430

页数：8

共 16 条

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[2]

[Anonymous], 2007, 20074264 AIAA

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