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Effective Segregation Coefficient for Segregation in Microgravity

Aleksandar G. Ostrogorsky 

Illinois Institute of Technology, 10 West 33rd Street, Chicago, Il 60616, United States


A new model for effective segregation coefficient in microgravity is proposed. Natural convection is quantified using Nusselt numbers, so that solute film thickness δ does not need to be known.   A “Combined-Convection” Nusselt number, NuCC is derived for the solid-liquid interface,  which accounts for buoyancy-driven flow, and the cross-flow velocity f,  entering the interface. NuCC  is used to calculate the effective segregation coefficient, keff at low levels of natural convection,  occurring in space laboratories.  


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Related papers

Presentation: Oral at 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17, Topical Session 8, by Aleksandar G. Ostrogorsky
See On-line Journal of 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17

Submitted: 2013-04-16 14:49
Revised:   2013-04-16 14:50