微液膜厚度及气液界面波动特性测量技术分析  

The Analysis of Diagnostic Techniques on Liquid Film Thickness and Interfacial Dynamics

作　　者：张友佳[1] 李华[1] 兰治科[1] 谢士杰[1] 昝元峰[1] Zhang Youjia;Li Hua;Lan Zhike;Xie Shijie;Zan Yuanfeng(China Nuclear Power Research and Design Institute,Sichuan,610213)

机构地区：[1]中国核动力研究设计院,四川610213

出　　处：《当代化工研究》2022年第12期177-179,共3页Modern Chemical Research

基　　金：四川省科技厅应用基础研究项目“微观尺度下窄流道内流动传热机理及强化实验研究”(项目编号:2019YJ0299)。

摘　　要：气液两相流设备的性能受限于临界热流密度,开展流动微液膜厚动力学特性相关研究及气液分层流界面波动稳定性的精准表征是深入理解流动沸腾机理及其强化的关键。本文针对气液两相流设备中加热表面微液膜厚度及其波动特性为研究对象,对现有的液膜厚度与气液界面波动特性诊断技术进行测量原理说明,并对光学法测量范围、精度、可操作性等性能指标进行对比分析。The performance of two-phase flow equipment is limited by the critical heat flux.A fundamental understanding of the micro-liquid film dynamics and accurate characterization of the stability of interfacial wave in stratified flow are needed for further understanding the flow boiling mechanisms and its enhancement.The topics of this study focus on the thickness of micro liquid film and interfacial wave properties on the heating surfaces of air-liquid two-phase flow equipment.A description of measure principles of the dominating diagnostic techniques for the thickness of liquid film in micro scale and interfacial wave dynamics are revealed in this study.In addition,the comparing analysis of performance parameters in optical diagnostic techniques,including measuring range,accuracy and operability are presented in this paper.

关 键 词：液膜厚度 界面动力学 测量技术 临界热流密度 沸腾传热 

分 类 号：TL33[核科学技术—核技术及应用]