摘要
设计了一种可用于小通道气液两相流参数检测的电容传感器,并建立了相应的检测系统。对4.0 mm、3.1 mm、1.8mm三种小通道内气液两相流参数检测和流动特性分析问题进行了研究。实验结果表明研制的电容传感器和建立的检测系统是有效的,所获电容信号的傅立叶与小波变换结果能够用于流动特性刻画,有效地反映了多种管内流型的流动特性。
A capacitance sensor was designed for minichannel gas-liquid two-phase flow parameter measurement and a relevant detection system was developed. The flow characteristics in 3 minichan- nels with diameter of 4.0 mm, 3.1 mm and 1.8 mm were studied. Experimental results show that the capacitance sensor and the detection system are effective. Both Fourier transform and wavelet transform results of capacitance signals can be used to describe flow behaviors and to analyze its flow characteristics.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第10期1685-1688,共4页
Journal of Engineering Thermophysics
关键词
小通道
气液两相流
测量系统
电容
检测
minichannel
gas-liquid two-phase flow
detection system
capacitance
measurement
