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dc.contributorVirginia Techen_US
dc.contributor.authorSalem-Said, Abdel-Halimen_US
dc.contributor.authorFayed, Hassanen_US
dc.contributor.authorRagab, Saad A.en_US
dc.identifier.citationSalem-Said, Abdel-Halim; Fayed, Hassan; Ragab, Saad. 2013. "Numerical Simulations of Two-Phase Flow in a Dorr-Oliver Flotation Cell Model." Minerals 2013, 3(3), 284-303; doi:10.3390/min3030284.
dc.description.abstractTwo-phase (water and air) flow in the forced-air mechanically-stirred Dorr-Oliver machine has been investigated using computational fluid dynamics (CFD). A 6 m3 model is considered. The flow is modeled by the Euler-Euler approach, and transport equations are solved using software ANSYS-CFX5. Unsteady simulations are conducted in a 180-degree sector with periodic boundary conditions. Air is injected into the rotor at the rate of 2.63 m3/min, and a uniform bubble diameter is specified. The effects of bubble diameter on velocity field and air volume fraction are determined by conducting simulations for three diameters of 0.5, 1.0, and 2.0 mm. Air volume fraction contours, velocity profiles, and turbulent kinetic energy profiles in different parts of the machine are presented and discussed. Results have been compared to experimental data, and good agreement is obtained for the mean velocity and turbulent kinetic energy profiles in the rotor-stator gap and in the jet region outside stator blades.
dc.rightsCreative Commons Attribution 4.0 International
dc.subjectMinerals flotation machinesen_US
dc.subjectVoid fractionen_US
dc.subjectTwo phase flowsen_US
dc.subjectNumerical simulationen_US
dc.titleNumerical Simulations of Two-Phase Flow in a Dorr-Oliver Flotation Cell Modelen_US
dc.typeArticle - Refereeden_US

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Creative Commons Attribution 4.0 International
License: Creative Commons Attribution 4.0 International