Steady CFD simulation of central vortex formation at the free surface in the vessel without baffles stirred by impeller with three curved blades

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F14%3A00217464" target="_blank" >RIV/68407700:21220/14:00217464 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Steady CFD simulation of central vortex formation at the free surface in the vessel without baffles stirred by impeller with three curved blades
Original language description
This work deals with the numerical simulation of fluid flow (for tested case water was applied) in the vessel without baffles focusing on the creation of the vortex and its shape on the free surface. The vessel is stirred by impeller with three curved blades with particular geometry. CFD program ANSYS FLUENT is used for the simulations. Steady flow regime is assumed. SST k-omega and Reynolds Stress turbulent models are used for the simulation of turbulence and MRF approach is used for simulation of impeller motion. VOF model is used to solve multiphase flow. The one geometry of stirred vessel without baffles is solved and the sensitivity analyses of mesh roughness were performed. Higher rotation speeds from 200 to 350 rpm are set to establish a large central vortex. Further experiments were carried out with the same geometry. The shapes of vortices and flow fields are compared for different meshes and turbulent models. Furthermore, the value of power numbers and depth of vortices are c
Czech name
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Czech description
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Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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