Journal
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
Volume 87, Issue -, Pages 102-113Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmultiphaseflow.2016.09.003
Keywords
Stratified wavy pipe flow; Gravity waves; Gravity-capillary waves
Categories
Funding
- Shell Projects Technology
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An experimental study was performed in stratified wavy flow of air and water through a horizontal pipe. The velocity fields in both phases were measured simultaneously using PIV and the interfacial shape was resolved using a profile capturing technique. The objective of the study was to investigate the interfacial characteristics and the velocities of the liquid and gas phases in two wave patterns: '3D small amplitude' and '2D large amplitude' waves. The wave patterns were shown to consist of gravity and gravity-capillary waves, respectively, with substantial differences in the wave characteristics and liquid velocities. Contrary to this, the effect of the waves on the gas velocities was rather similar in both wave regimes, with both wave regimes causing an increase in the velocity fluctuations close to the interface. The current measurements also produced a valuable dataset that can be used to further improve the numerical modeling of the stratified flow pattern. (C) 2016 Elsevier Ltd. All rights reserved.
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