Spectroscopic determination of rotational temperature in rarefied hypersonic flow by glow-discharge excitation of luminescence
The use of the relative intensity method for measurement of the rotational temperature of nitrogen in a rarefied air flow by means of glow-discharge excitation of luminescence is described. Special features of measurement of the rotational temperature at low static pressure of the gas in the flow are noted. Profiles of the rotational temperature along the stagnation line in the case of transverse flow over a cylinder are obtained. The dependence of the measurement error on the temperature is discussed.
KeywordsNitrogen Mathematical Modeling Mechanical Engineer Measurement Error Relative Intensity
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