Measurements of gravity and gravity-capillary waves in horizontal gas-liquid pipe flow using PIV in both phases

Journal article (2016)

Authors

M. Birvalski Fluid Mechanics - Mechanical, Maritime and Materials Engineering
M.J. Tummers Fluid Mechanics - Mechanical, Maritime and Materials Engineering
R.A.W.M. Henkes Fluid Mechanics - Mechanical, Maritime and Materials Engineering , Shell Global Solutions International B.V.
Research Group
Fluid Mechanics (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2016 M. Birvalski, M.J. Tummers, R.A.W.M. Henkes
DOI: https://doi.org/10.1016/j.ijmultiphaseflow.2016.09.003
Gravity waves Gravity-capillary waves Stratified wavy pipe flow
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Published Date

2016

Language

English

Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Fluid Mechanics

Abstract

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.