18 February 2008 Measurement of sinusoidal flow oscillations in a glass capillary tube using phase-resolved DOCT
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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.
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Catherine Blake, Catherine Blake, James Edmunds, James Edmunds, Leigh Shelford, Leigh Shelford, Julian Moger, Julian Moger, Stephen J. Matcher, 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); doi: 10.1117/12.763436; https://doi.org/10.1117/12.763436
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