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The Three-Dimensional Velocity Distribution of Wide Gap Taylor-Couette Flow Modelled by CFD


Affiliations
1 Department of Engineering, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
 

A numerical investigation is conducted for the flow between two concentric cylinders with a wide gap, relevant to bearing chamber applications. This wide gap configuration has received comparatively less attention than narrowgap journal bearing type geometries. The flow in the gap between an inner rotating cylinder and an outer stationary cylinder has been modelled as an incompressible flow using an implicit finite volume RANS scheme with the realisable κ-ε model. The model flow is above the critical Taylor number at which axisymmetric counterrotating Taylor vortices are formed. The tangential velocity profiles at all axial locations are different from typical journal bearing applications, where the velocity profiles are quasilinear. The predicted results led to two significant findings of impact in rotating machinery operations. Firstly, the axial variation of the tangential velocity gradient induces an axially vary
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  • The Three-Dimensional Velocity Distribution of Wide Gap Taylor-Couette Flow Modelled by CFD

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Authors

David Shina Adebayo
Department of Engineering, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
Aldo Rona
Department of Engineering, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom

Abstract


A numerical investigation is conducted for the flow between two concentric cylinders with a wide gap, relevant to bearing chamber applications. This wide gap configuration has received comparatively less attention than narrowgap journal bearing type geometries. The flow in the gap between an inner rotating cylinder and an outer stationary cylinder has been modelled as an incompressible flow using an implicit finite volume RANS scheme with the realisable κ-ε model. The model flow is above the critical Taylor number at which axisymmetric counterrotating Taylor vortices are formed. The tangential velocity profiles at all axial locations are different from typical journal bearing applications, where the velocity profiles are quasilinear. The predicted results led to two significant findings of impact in rotating machinery operations. Firstly, the axial variation of the tangential velocity gradient induces an axially vary