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Proceedings of CHT-08 ICHMT International Symposium on Advances in Computational Heat Transfer
May, 11-16, 2008, Marrakesh, Morocco

DOI: 10.1615/ICHMT.2008.CHT


ISBN Print: 978-1-56700-253-9

ISSN: 2578-5486

NUMERICAL PREDICTION OF MASS TRANSFER IN TURBULENT FLOW THROUGH A 90° BEND

page 9
DOI: 10.1615/ICHMT.2008.CHT.370
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RESUMO

This paper presents a computational fluid dynamics (CFD)-based study for prediction of local mass transfer coefficient specifically in 90° elbows. Flow in the elbow is assumed to be turbulent and the RNG version of k-ε model was used for turbulence modeling. The ratio of the Maximum mass transfer coefficient for an elbow to the mass transfer coefficient for fully developed pipe flow (Sh/Shp) decreases as the Reynolds number (Re), Schmidt number (Sc) and curvature ratio (r/D) increases. Maximum mass transfer rate was observed at a distance one diameter downstream of the elbow. Numerical analysis results were in good agreement with experimental results obtained from literature.

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