Tue March 1st 2016
16:30 – 17:00
ZH286
Seminar Bubbly drag reduction
Dennis Bakhuis

Details:

Due to their turbulent nature, many flows in industrial processes and naval transport are subject to enormous frictional losses. Reducing these losses by even a small fraction would already result in huge economical and environmental savings. For that reason, bubbly drag reduction has already been studied for many years, However, clear physical understanding is still very limited. The deformability and size of the bubbles seem to be crucial for the mechanism. Using the Twente Turbulent Taylor-Couette (T3C) facility we study the effect of these parameters individually. By using rigid spheres of different diameters we study if size affects the drag, disabling the deformability effect of the bubble. After our first measurements, we found that the diameter has an overal effect on the resulting drag.
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The 10th Complex Motion in Fluids 2020
Max Planck Gesellschaft
MCEC
Twente
Centre for Scientific Computing
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