摘要
用电导探针测量了水平及微倾斜上升和下降管内气 -液分层流瞬态液膜厚度 ,得到了不同的波形图 .用统计分析的方法研究了界面波信号的频谱特性 ,得到了不同倾角时管内分层流界面波各特征参数 ,如界面波振幅、波长、波速 。
The time-dependent liquid film thickness in horizontal and slightly inclined tubes was measured by using parallel-wire conductance probes, and various wave patterns were obtained. The features of probability density function, probability distribution, auto-correlation, cross-correlation and power spectrum density function of waves were studied in amplitude domain, time domain and frequency domain respectively. The parameters of wave, such as wave amplitude, wavelength, wave velocity and wave period were obtained. The variation of wave parameters with gas, liquid superficial velocities and tube inclination angle were presented.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2001年第6期495-498,共4页
CIESC Journal
关键词
两相流
界面波
电导探针
液膜厚度
气液分层流
Frequency domain analysis
Heat transfer
Mass transfer
Statistical methods
Waves
