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International Symposium on Multiphase Flow and Transport Phenomena
November, 5-10, 2000, Antalya, Turkey

DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhen


ISBN Print: 1-56700-162-9

AN EXPERIMENTAL STUDY ON THE INTERACTION BETWEEN AN IMMISCIBLE DROPLET AND A LIQUID TAYLOR-VORTEX FLOW

page 7
DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhen.130
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RESUMO

We have conducted measurement of the velocity field around an immiscible silicon-oil droplet of 6 mm in diameter carried by water Taylor-vortex flow in an annulus between a stationary cylinder of 80 mm in inner diameter and a rotating cylinder of 60 mm in outer diameter in order to understand the interaction between a droplet and a vortex. The time-varying velocity field has been visualised by tracer particles smaller than 0.3 mm in diameter. The velocity vectors of the particles have been obtained from visualised images by using a particle-tracking-velocimetry method. Experimental results show that the kinetic energy is attenuated due to the diminution of vortical flow. Attenuation of vorticity is found around the droplet except for a small region where the vortical flow impinges.

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