Dynamic measurements in supercritical flow using instantaneous phase-shift in interferometry

E. Astrakharchik-Farrimond; B. Shekunov; P. York; N. Sawyer; S. Morgan; Michael Geoffrey Somekh; C. See

doi:10.1007/s00348-002-0434-7

Dynamic measurements in supercritical flow using instantaneous phase-shift in interferometry

E. Astrakharchik-Farrimond, B. Shekunov, P. York, N. Sawyer, S. Morgan, Michael Geoffrey Somekh, C. See

Research output: Journal article publication › Journal article › Academic research › peer-review

15 Citations (Scopus)

Abstract

A high-speed, high-resolution interferometer was constructed on the basis of four-channel phase-shift acquisition, real-time phase detection, unwrapping and profile-fitting image processing. This instrument was applied for visualisation of the mixing process between supercritical carbon dioxide and ethanol solvent above mixture critical pressure, at high Reynolds numbers. The instantaneous phase distribution and time-average concentration profiles in the jet have been obtained. The high sensitivity of this system also allowed measurements of the temperature profiles and determination of the excess enthalpy of ethanol-CO2mixing.

Original language	English
Pages (from-to)	307-314
Number of pages	8
Journal	Experiments in Fluids
Volume	33
Issue number	2
DOIs	https://doi.org/10.1007/s00348-002-0434-7
Publication status	Published - 1 Jan 2002
Externally published	Yes

ASJC Scopus subject areas

Computational Mechanics
Mechanics of Materials
General Physics and Astronomy
Fluid Flow and Transfer Processes

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10.1007/s00348-002-0434-7

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AU - Morgan, S.

AU - Somekh, Michael Geoffrey

AU - See, C.

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AB - A high-speed, high-resolution interferometer was constructed on the basis of four-channel phase-shift acquisition, real-time phase detection, unwrapping and profile-fitting image processing. This instrument was applied for visualisation of the mixing process between supercritical carbon dioxide and ethanol solvent above mixture critical pressure, at high Reynolds numbers. The instantaneous phase distribution and time-average concentration profiles in the jet have been obtained. The high sensitivity of this system also allowed measurements of the temperature profiles and determination of the excess enthalpy of ethanol-CO2mixing.

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Dynamic measurements in supercritical flow using instantaneous phase-shift in interferometry

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