Imperial College London

ProfessorChristosMarkides

Faculty of EngineeringDepartment of Chemical Engineering

Professor of Clean Energy Technologies
 
 
 
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Contact

 

+44 (0)20 7594 1601c.markides Website

 
 
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Location

 

404ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Ibarra:2017,
author = {Ibarra, R and Matar, OK and Markides, CN},
pages = {71--85},
publisher = {BHR Group},
title = {Flow structures in low-inclination stratified oil-water pipe-flows using laser-based diagnostic techniques},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - In this work, a novel two-line laser-based diagnostic measurement technique was developed and applied to obtain combined space- and time-resolved phase and velocity information in low-inclination upward (<+5°) stratified flows of oil (Exxsol D140) and water. The strength of this technique is in enabling direct measurements in the non-refractive-index-matched fluids of interest, as opposed to substitute (optically matched) fluids whose properties may be less representative of those in real field-applications. The experimental test-section consisted of a 32-mm internal diameter pipe with a total length of 8.5 m. Results reveal interesting interactions between the co-flowing liquid phases. The velocity gradients at the interface are enhanced at high pipe inclinations for upward flows as the oil and water velocities increase and decrease, respectively. This also has a direct effect on the velocity fluctuations (quantified through their rms) and on the interfacial instabilities, which in turn affect the local velocity distributions in both phases.
AU - Ibarra,R
AU - Matar,OK
AU - Markides,CN
EP - 85
PB - BHR Group
PY - 2017///
SP - 71
TI - Flow structures in low-inclination stratified oil-water pipe-flows using laser-based diagnostic techniques
ER -