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Proceedings Paper

Measurement of the local density in rarefied flows by means of characteristic fluorescence
Author(s): Lev I. Kuznetsov; Viacheslav N. Yarygin
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Paper Abstract

The new method is based on the interaction of fast beam electrons with electrons in the outer shells of atoms, which generates the characteristic x-ray radiation. The intensity of x-rays is proportional to the concentration of the atoms in investigated gas. The gasdynamic structures of rarefied argon jets were studied in the range of stagnation temperatures up to 5200 K using the this x-ray method. The experimental studies of the present work were performed in a low-density gasdynamic chamber. The arc heater was used as a gasdynamic source. The changes in the structure of a jet of monatomic gas beyond a sonic nozzle with variation in the rarefaction and the temperature factor have been clarified as a result of the experiments and generalizations performed.

Paper Details

Date Published: 21 November 1997
PDF: 10 pages
Proc. SPIE 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III, (21 November 1997); doi: 10.1117/12.279765
Show Author Affiliations
Lev I. Kuznetsov, Institute of Thermophysics (Russia)
Viacheslav N. Yarygin, Institute of Thermophysics (Russia)


Published in SPIE Proceedings Vol. 3172:
Optical Technology in Fluid, Thermal, and Combustion Flow III
Soyoung Stephen Cha; James D. Trolinger; Masaaki Kawahashi, Editor(s)

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