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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2282/895
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| Title: | Velocity and turbulence measurements of oil-water flow in horizontal and slightly inclined pipes using PIV |
| Authors: | Kumara, W.A.S.
Halvorsen, Britt
Melaaen, Morten Christian |
| Issue Date: | 2009 |
| Abstract: | Oil-water flows in horizontal and slightly inclined pipes are investigated using
Particle Image Velocimetry (PIV). PIV offers a powerful non-invasive tool to
study such flow fields. The experiments are conducted in a 15 m long, 56 mm
diameter, inclinable steel pipe using Exxsol D60 oil (viscosity 1.64 mPa s,
density 790 kg/m3) and water (viscosity 1.0 mPa s, density 996 kg/m3) as test
fluids. The test pipe inclination is changed in the range from 5° upward to 5°
downward. The experiments are performed at mixture velocity 0.25 m/s and inlet
water volume fraction 0.25. The instantaneous local velocities are measured
using PIV, and based on the instantaneous local velocities mean velocities and
turbulence profiles (U-rms, V-rms and Reynolds stresses) are calculated. The
time averaged cross sectional distributions of oil and water phases are measured
with a traversable gamma densitometer. The flow regimes are determined based
on visual observations. The measured flow regimes, water hold-up, slip ratio and
velocity and turbulence profiles show a strong dependency with pipe inclination. |
| Keywords: | Fluid mechanics
Particle image velocimetry
Horizontal flow
Turbulence measurements |
| Publisher: | WIT Press |
| Document type: | Book chapter |
| URI: | http://hdl.handle.net/2282/895 |
| Appears in Collections: | Institutt for prosess-, energi- og miljøteknologi
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