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气液两相流中界面波的存在对传热、传质、阻力特性及稳定性都有很大影响。前人有关界面波的研究大多偏重于两相流中界面波的类型及其转变,而对其特征参数变化规律(如振幅、波长、频率和速度等)的研究则很少。但界面波对气液两相流流动阻力和流动结构影响机理的深入研究必须以了解界面波的各特性参数为前提,同时界面波有关特性参数的深入研究也可为气液两相流的数学理论化提供实验基础。 本文以气、水为工质,系统研究了水平矩形管内气液两相流的界面波特性。根据界面波在时域、幅域内的不同特征区别出了各种类型的波并给出了相应的波形和流型图。着重研究了界面波各特征量随气液两相流量变化的变化规律。
The existence of interface wave in gas-liquid two-phase flow has a great influence on heat transfer, mass transfer, resistance characteristics and stability. The previous studies on interface waves mostly focus on the type and the transition of interface waves in two-phase flow, and few studies on the variation law of their characteristic parameters (such as amplitude, wavelength, frequency and velocity). However, the in-depth study of the influence of interface wave on the flow resistance and flow structure of gas-liquid two-phase flow must be based on the understanding of the characteristic parameters of the interface wave, and the in-depth study on the relevant parameters of the interface wave can also be the mathematical Theorization provides the experimental basis. In this paper, the gas-liquid two-phase flow in a rectangular tube with a working fluid is studied systematically. According to the different characteristics of the interface wave in the time domain and the amplitude domain, various types of waves are distinguished and the corresponding waveforms and flow patterns are given. Emphatically studied the characteristics of interface wave with the variation of gas-liquid two-phase flow.