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

Author

Chao Wang ; Hongbing Ding ; Yakun Zhao ; Yong Yan ; Yonghui Hu

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China

fYear

2014

fDate

12-15 May 2014

Firstpage

772

Lastpage

775

Abstract

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.

Keywords

compressible flow; condensation; confined flow; flow instability; flow sensors; fluid oscillations; nozzles; pressure sensors; H₂O; dimensional analysis; flow rate; periodic compressible flow; pressure oscillation monitoring; pressure sensor system; sonic nozzle; unsteady compressible flow; unsteady flow frequency; water vapor condensation; Equations; Heating; Humidity; Mathematical model; Oscillators; Pressure measurement; Temperature measurement; fast pressure sensor; frequency characteristics; sonic nozzle; unsteady flow rate; vapor condensation;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2014 IEEE International

Conference_Location

Montevideo

Type

conf

DOI

10.1109/I2MTC.2014.6860847

Filename

6860847