摘要
研究气液两相流动中压力波的传播规律是工业应用中的重要课题之一。对泡状流中压力波的传播特性进行了系统研究 ,得到如下主要结论 ,即含气率是影响气液两相流中压力波传播规律的一个重要因素 ,液相流速对压力波的传播规律基本没什么影响 ,色散性是压力波传播的重要特性 ,但是当扰动角频率大于 4 0 0Hz后 ,压力波色散现象消失。
The investigation on pressure wave propagation in gas-water two-phase flow is one of the key subjects emerged from wide industrial application. The propagation characteristics in bubble flow are investigated in detail by experimental test and numerical simulation. The results show that the vapor fraction has a great affection on the propagation whereas the liquid velocity hardly does, the dispersion is an important character of pressure wave but it can be omitted if the disturbed frequency becomes larger than (400Hz). The pressure wave propagation in gas-liquid bubble flow can be predicted well with the presented mathematic model, which is basing on the two-fluid model and small perturbation theory.
出处
《石油化工设备》
CAS
2004年第6期1-6,共6页
Petro-Chemical Equipment
基金
国家自然科学基金 (5 0 0 0 6 0 10 )
国防科技重点实验室基金 (5 14 82 0 80 10 3JW0 80 3)
教育部博士点基金(2 0 0 30 6 980 36 )
关键词
两相流动
压力波
色散
传播速度
衰减
two-phase flow
pressure wave
dispersion
propagation speed
attenuation
