Temperature measurement of reflected shock wave by using chemical indicator

被引：0

作者：

Cui, JP ^{[1
]}

He, YZ ^{[1
]}

Wang, S ^{[1
]}

Wang, J ^{[1
]}

Fan, BC ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Mech, Lab High Temp Gas Dynam, Beijing 100080, Peoples R China

来源：

ACTA MECHANICA SINICA | 2000年 / 16卷 / 01期

关键词：

temperature measurement; shock tube; chemical reaction; temperature indicator; tetrafluoromethane;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This report describes a new method for measuring the temperature of the gas behind the reflected shock wave in shock tube, corresponding to the reservoir temperature of a shock tunnel, based on the chemical reaction of small amount of CF4 premixed in the test gas. The final product C2F4 is used as the temperature indicator, which is sampled and detected by a gas chromatography in the experiment. The detected concentration of C2F4 is correlated to the temperature of the reflected shock wave with the initial pressure P-1 and test time tau as parameters in the temperature range 3 300 K < T < 5 600 K, pressure range 5 kPa < P1 <12 kPa and tau similar or equal to 0.4 ms.

引用

页码：63 / 69

页数：7

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