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JEM 2019
5th Multiphase Flow Journeys
GAS-LIQUID FLOW PATTERN RECOGNITION USING DIMENSIONLESS NUMBERS
Submission Author:
Cáio Araújo , SP
Co-Authors:
Cáio Araújo, Tiago Ferreira Souza, Maurício Figueiredo, Valdir Estevam, Ana Maria Frattini Fileti
Presenter: Cáio Araújo
doi://10.26678/ABCM.JEM2019.JEM19-0012
Abstract
Gas-Liquid two-phase flow is very frequent in process industries. The necessity to determine the flow pattern is mainly related to the need for design and monitoring the flow. To present a way to monitor the two-phase liquid-gas flow pattern, the sensitivity of the dimensionless number as a flow pattern classifier was performed. The dimensionless numbers evaluated were the Reynolds, Weber, Froude, Slippage Number and the pressure ratio. The configurations of flow studied were dispersed bubble, slug and churn flow patterns. To reach this objective, an experimental apparatus was built in the Experimental Laboratory of Petroleum (LabPetro) at the Center for Petroleum Studies (Cepetro), located at the University of Campinas (Unicamp). Experimental data was collected, using water or oil as a continuous phase and air as a dispersed phase. A high-speed camera was used to verify the actual flow pattern and compare with Taitel et al. (1980) flow map. The results indicate that Froude of the mixture and Weber Liquid numbers better recognize distinct regions of the flow patterns.
Keywords
flow pattern, dimensionless numbers, Flow map, Two-phase Flow
