Wed June 8th 2016
16:00 – 16:30
ZH286
Seminar Experimental investigation of heat transport in bubbly flow
Biljana Gvozdić

Details:

Bubbly flows coupled with heat transport are relevant for many applications in industry. Previous studies have shown that injection of bubbles into a carrier fluid can enhance the convective heat transfer in forced and natural convection systems. The exact mechanism behind this phenomenon is still unclear since previous heat transport measurements in bubbly flows are limited to time-averaged global quantities and narrow parameter range. In this study we make a first step towards better understanding of the heat transport enhancement induced by bubbles. We perform measurements of the global fluxes in a homogeneous bubbly flow along with local liquid temperature fluctuations measurements. The experiments are conducted in a rectangular bubble column heated from one side. We present the results for gas volume fractions from 0.5% to 2.3% and bubble diameter ~ 3 mm.
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The 10th Complex Motion in Fluids 2021
Max Planck Gesellschaft
MCEC
Twente
Centre for Scientific Computing
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