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Third Symposium on Turbulence and Shear Flow Phenomena
June, 25-27, 2003, International Center, Sendai, Japan

DOI: 10.1615/TSFP3

THE MODIFICATIONS OF NEAR-WALL TURBULENCE STRUCTURE AND HEAT TRANSFER BY IMMISCIBLE DROPLETS IN TURBULENT LIQUID-LIQUID TWO-PHASE FLOW

pages 221-226
DOI: 10.1615/TSFP3.380
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摘要

Direct numerical simulation has been carried out for non-isothermal turbulent upward channel flow with four immiscible droplets whose density is higher than that of continuous-phase flow. The interface was tracked by the modified volume-of-fluid method. The computational results show that both the outward flow in the wake and the wallward flow around the cap of a droplet enhance heat transfer. These flows are attenuated by the adjacent droplet in the axial direction. The droplets prevent the evolution of hairpin vortices and attenuate the developed vortices.

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