Analysis of Thermal Effects on Body Temperature Distribution of Sonic Nozzles

被引：0

作者：

Cao, Peijuan ^{[1
]}

Wang, Chao ^{[1
]}

Ding, Hongbing ^{[1
]}

Wang, Xiaotong ^{[1
]}

机构：

[1] Tianjin Univ, Sch Elect & Informat Engn, Tianjin Key Lab Proc Measurement & Control, Tianjin 300072, Peoples R China

来源：

2018 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC): DISCOVERING NEW HORIZONS IN INSTRUMENTATION AND MEASUREMENT | 2018年

基金：

中国国家自然科学基金;

关键词：

sonic nozzles; thermal effects; temperature distribution; thermocouple; SGM; KIM;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To improve the measurement accuracy of sonic nozzle, the complex thermal effect in sonic nozzles were investigated. As the essential characteristic of thermal effect, the steady and transient temperature distributions of nozzle sensors were measured by 12 thermocouple probes. Then, the original signals of thermocouples were filtered smoothly by Savitzky-Golay Method (SGM) and normalized and the dynamic response characteristics, namely the time constant of temperature were obtained. Moreover, the isotherms of whole solid region were analyzed by the Kriging interpolation method (KIM). Finally, the heat flow in solid region were obtained according to the temperature isotherm, which is consistence with heat transfer theory and verify the accuracy of the KIM further.

引用

页码：73 / 78

页数：6

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