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Title: | Analysis of the characteristic lengths in the bubble and slug flow regimes generated in a capillary T-junction |
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Author: | Arias Calderón, Santiago; González Cinca, Ricardo |
Other authors: | Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. BIOCOM-SC - Grup de Biologia Computacional i Sistemes Complexos |
Abstract: | We present an analysis of the geometry of the continuous and disperse phases in the bubble and slug flow regimes in air–water mixtures generated in a capillary T-junction of 1 mm internal diameter. Bubble size dispersion is very low in the considered flow patterns. The concept of unit cell is used to identify two characteristic lengths of the two-phase flow, namely, the unit cell length and the bubble length. The relationship between these lengths and the gas and liquid superficial velocities, gas mean velocity, bubble generation frequency and volume average void fraction is analysed. We conclude that in the considered configuration the unit cell and bubble lengths can be predicted either by the ratio of the gas–liquid superficial velocities or the volume average void fraction. |
Abstract: | Peer Reviewed |
Subject(s): | -Àrees temàtiques de la UPC::Física -Two-phase flow -Bubbles--Dynamics -Two-phase -Flow regimes -Bubble generation -T-Junction -Unit cell -Bubble length -Bombolles |
Rights: | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type: | Article - Draft Article |
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