Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
A Review of Frequency Correlations for the Intermittent Gas-Liquid Flow in Horizontal Pipes
Submission Author:
Luiz Eduardo Melo Lima , PR
Co-Authors:
Gislaine Leticia Carvalho, Luiz Eduardo Melo Lima
Presenter: Luiz Eduardo Melo Lima
doi://10.26678/ABCM.ENCIT2018.CIT18-0251
Abstract
Gas-liquid two-phase flows are found in several industrial processes and in nature, which in turn can be classified into three main patterns: dispersed, separated and intermittent. Intermittent flow is characterized as a combination of a dispersed flow region, an aerated liquid piston, and a separate flow region, elongate gas bubble in parallel with a liquid film, thereby constituting a unit cell, which flows along a pipe with a certain frequency. This frequency is considered one of the fundamental characteristic of this flow type. Thus, in the present work, it is proposed to carry out a study concerning the models (correlations) available in the literature to estimate the intermittent flow frequency. The frequency correlations analyzed in this study are calculated and compared against experimental data also available in the literature for horizontal pipes, in order to verify which are more accurate, as well as their limitations for any applications. The results obtained in this analysis showed that although some frequency correlations have satisfactory results, it is not yet possible to apply them comprehensively, taking into account the different experimental configurations that may occur, such as variations in pipe diameters and fluid properties.
Keywords
Two-phase Flow, modeling, Slug, Frequency, correlations
