Rate of Atomization Experiment for Gas-Liquid Annular Flow with High Viscosity Liquid

摘要提案标题： 高粘度液体气液环形流的雾化速率实验提案编号：CTS-9979242主要研究员：Martin洛佩斯·德贝尔托达诺机构：普渡大学本项目的目标是获得高粘度液体环形两相流中雾沫夹带率的数据。 这项工作将有助于了解在这些流动中的液滴形成机制，获得新的数据，可用于测试理论模型。 PI将通过线性稳定性分析对数据进行分析。 液膜卷吸速率的机理在气液两相环状流的预测中起着核心作用。 目前，经验相关性用于这些目的。 现有的数据主要限于空气-水实验。 本课题将对液体粘度对雾沫夹带率的影响进行系统的实验研究。 这些数据将被用来扩展现有的半经验相关性，也将进行理论研究，以提高目前的理解夹带率。 液相将是甘油-水混合物，使得可以获得范围从1cp至100cp的粘度值。 将采用萃取和示踪技术进行夹带测量。 将使用线性稳定性模型来开发夹带速率表达式，用于关联数据。这项工作具有重要的实际意义，在两相流，特别是在石油化工行业的运输。

AbstractProposal Title: Rate of Atomization Experiment for Gas-liquid Annular Flow with High Viscosity LiquidProposal Number: CTS-9979242Principal Investigator: Martin Lopez de BertodanoInstitution: Purdue UniversityThe objective of this project is to obtain data on entrainment rates in annular two-phase flow with high viscosity liquids. This work will contribute to an understanding of the drop formation mechanism in these flows by obtaining new data that can be used to test theoretical models. The PI will perform an analysis of the data through a linear stability analysis. The mechanism of the rate of entrainment from the liquid film plays a central role in the prediction of gas-liquid annular flow. Currently, empirical correlations are used for these purposes. Available data are limited primarily to air-water experiments. In this project the PI will make a systematic experimental study of the effects of liquid viscosity on entrainment rate. The data will be used to extend existing semi-empirical correlations; a theoretical study will also be carried out to improve the current understanding of entrainment rate. The liquid phase will be a glycerin-water mixture so that viscosity values ranging from 1 cp to 100 cp can be obtained. Entrainment measurements will be made with extraction and tracer techniques. A linear stability model will be used to develop an entrainment rate expression, useful for correlating the data. This work has important practical implications for transport in two-phase flow, especially in the petrochemical industry.