Measurement of sinusoidal flow oscillations in a glass capillary tube using phase-resolved DOCT

Catherine Blake; James Edmunds; Leigh Shelford; Julian Moger; Stephen J. Matcher

doi:10.1117/12.763436

18 February 2008 Measurement of sinusoidal flow oscillations in a glass capillary tube using phase-resolved DOCT

Catherine Blake, James Edmunds, Leigh Shelford, Julian Moger, Stephen J. Matcher

Proceedings Volume 6847, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII; 68472O (2008) https://doi.org/10.1117/12.763436
Event: SPIE BiOS, 2008, San Jose, California, United States

Abstract

We report on the use of phase-resolved DOCT to measure oscillatory flow in a rigid glass capillary. Experimental measurements are obtained in which a sinusoidal pressure gradient generates a sinusoidal varying flow of a scattering liquid (Intralipid-20%) in a 660 micron i.d. glass tube. Dynamic flow profiles are measured and compared with the analytical theory due to Womersley. Reasonable agreement is found for one half of the flow profile (-ve velocities) but the agreement is less good for the +ve velocities. Possible reasons for the discrepancy are discussed. The study indicates the usefulness of DOCT for studying fluid flow dynamics.

Citation Download Citation

Catherine Blake, James Edmunds, Leigh Shelford, Julian Moger, and Stephen J. Matcher "Measurement of sinusoidal flow oscillations in a glass capillary tube using phase-resolved DOCT", Proc. SPIE 6847, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII, 68472O (18 February 2008); https://doi.org/10.1117/12.763436

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KEYWORDS

Phase measurement

Velocity measurements

Blood

Fluid dynamics

Glasses

Scattering

Liquids

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