Characterization of Two-Phase Flow Patterns in Small Round Tubes

Abstract:

To investigate flow characteristics by high speed video systems, experimental study was conducted to gas-liquid two-phase flow in horizontal round small tube with diameter of 5.5 and 2.6 mm, the typical flow pattern images were obtained, but stratified flow of the conventional size horizontal channel had not been discovered. Gas and liquid superficial velocities range from 0.1 to 100 ms^-1, and 0.01to 10.0 ms^-1 respectively. Flow patterns for co-current flow of air-water mixtures in horizontal round tubes are determined by high-speed video analysis to develop flow regime maps and the transitions between these flow regimes. Comparisons with the relevant literatures show that diameter and surface tension effects play an important role in determining the flow patterns and transitions between them.

• Periodical: Applied Mechanics and Materials (Volume 525)
• Pages: 256-259
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.525.256
• Online since: February 2014
• Authors: Wen Peng Hong, Guo Qing Niu, Ming Liang Jin
• Keywords: Flow Regime Map, Gas-Liquid Two Phase Flow, Small Diameter Round Tube

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