Sensor system for unsteady flow characteristics in a sonic nozzle with vapor condensation

被引：0
作者：
Wang, Chao [1 ]
Ding, Hongbing [1 ]
Zhao, Yakun [1 ]
Yan, Yong [2 ,3 ]
Hu, Yonghui [3 ]
机构：
[1] Tianjin Univ, Sch Elect Engn & Automat, Tianjin Key Lab Proc Measurement & Control, Tianjin 300072, Peoples R China
[2] Univ Kent, Sch Engn & Digital Arts, Instrumentat Control & Embedded Syst Grp, Canterbury CT2 7NT, Kent, England
[3] N China Elect Power Univ, Sch Control & Comp Engn, Beijing 102206, Peoples R China
来源：
2014 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC) PROCEEDINGS | 2014年
基金：
中国国家自然科学基金;
关键词：
fast pressure sensor; frequency characteristics; unsteady flow rate; vapor condensation; sonic nozzle;
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Experiments on periodic, unsteady compressible flow in a sonic nozzle with heat addition were reported. This unsteady flow is caused by the condensation of water vapor in the sonic nozzle which will affect the flow rate of the sonic nozzle. A dimensional analysis for the essential effect factors of unsteady flow frequency was carried out. An experimental system including a sensor for pressure oscillation monitoring was built. The experimental results agree well with the simulation and semi-empirical formula. Both the sensor and experimental results can be used to further study the effect of unsteady flow due to the condensation of water vapor on the flow rate of the sonic nozzle.
引用
收藏
页码：772 / 775
页数：4
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