Turbulent Bubbly Flow


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Mazzitelli, I. (2003) Turbulent Bubbly Flow. thesis.

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Abstract:Turbulent bubbly flow is investigated by calculating and quantifying the motion and the action of microbubbles in homogeneous, isotropic and stationary turbulence. Direct numerical simulation is employed for the flow Navier-Stokes equations and Lagrangian tracking is used for computing the bubble trajectories. The forces acting on bubbles are fluid acceleration plus added mass effects, drag, lift and buoyancy. They are taken into account by a point-force model, which is reasonable for bubble Reynolds numbers of order 1, that correspond to microbubbles of diameter ~ 200µm in water (¿ ~ 10¿2cm2/s and g = 981cm/s2).
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Link to this item:http://purl.utwente.nl/publications/38656
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