Numerical investigation of closures for interface forces acting on single air-bubbles in water using volume and fluid and front tracking models

Dijkhuizen, W. and Hengel van den, E.I.V. and Deen, N.G. and Sint Annaland van, M. and Kuipers, J.A.M. (2005) Numerical investigation of closures for interface forces acting on single air-bubbles in water using volume and fluid and front tracking models. Chemical Engineering Science, 60 (22). pp. 6169-6175. ISSN 0009-2509

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Abstract:	Closures for the drag and virtual mass forces acting on a single air bubble rising in initially quiescent pure water have been numerically investigated using direct numerical simulation techniques. A 3D Front Tracking model was used and the results were compared with simulation results obtained with a 2D Volume of Fluid model to assess the influence of the third dimension. In the simulations realistic values were taken for the physical properties, i.e., a density ratio of 800. The computed time-averaged terminal rise velocity and mean aspect ratio for individual air bubbles ranging in equivalent diameter from 1 to 10 mm rising in pure water compare well with available experimental data. © 2005 Elsevier Ltd. All rights reserved.
Item Type:	Article
Copyright:	© 2005 Elsevier Ltd
Research Group:	Fundamentals of Chemical Reaction Engineering (FAP)
Link to this item:	http://purl.utwente.nl/publications/54585
Official URL:	http://dx.doi.org/10.1016/j.ces.2005.03.048
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