基于子波分析的气液两相流中气含率的测量  

Measurement of Gas Hold-up in Gas-liquid Flow Based on Wavelet Analysis

作　　者：陈文义[1] 姜楠[1] 王振东[1] 

机构地区：[1]天津大学力学系

出　　处：《计量学报》2008年第1期51-53,共3页Acta Metrologica Sinica

基　　金：国家自然科学基金(10472081,10232020);黑龙江省科技攻关项目(GC04A516)

摘　　要：用热膜风速仪以高于对应最小湍流时间尺度的分辨率精细测量环流反应器内不同空间位置的气液两相流瞬时速度信号,用子波分析的能量最大准则辨识气液两相流中的相。利用子波分析方法自动识别气液两相流中的相,从而获得测量气液两相流中气含率的切实可行的方法。The instantaneous velocity time sequence of gas-liquid two-phase turbulent flow at different spatial locations in a reflux reactor is finely measured by a constant-temperature hot-film anemometer, and the energy maxima criterion of wavelet analysis will be used to discriminate the phase from gas-liquid two-phase turbulent flow. The phase in gas-liquid two-phase flow by means of the method of wavelet analysis automatic identification can obtain a feasible method to measure the gas hold-up in gas-liquid two- phase turbulent flow.

关 键 词：计量学 气液两相流 含气率 子波分析 

分 类 号：TB937[一般工业技术—计量学]