| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7155765 | Computers & Fluids | 2018 | 59 Pages |
Abstract
A simulation of a downflow configuration of a turbulent channel loaded with a total of 10000 bubbles illustrates the computational capabilities. First and second order statistics of the velocity field were computed as well as the profiles of the average gas volume fraction field in the statistically steady state. In the case considered, a 47% increase of the wall shear stress was observed, brought about by turbulence modification arising from the embedded bubbles. The interaction between turbulence and bubbles at high volume fraction resulted in a strong attenuation of the rms of the velocity fluctuations in a wide region of the core of the channel.
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Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
P. Cifani, J.G.M. Kuerten, B.J. Geurts,