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- W2109136986 abstract "Under certain conditions of liquid flow through rotating channels, the Coriolis force can induce a free surface to be formed. This problem is of practical importance in a Coriolis wear tester, which is used for determining the sliding wear coefficient of wear materials in slurry handling equipment. A deforming Galerkin finite element method is presented for predicting two-dimensional turbulent free surface mean flow in rotating channels. Reynolds-averaged Navier–Stokes (RANS) equations are cast into weak(algebraic) form using primitive variables (velocity and pressure). Eddy viscosity is determined via a mixing length model. Velocity is interpolated biquadratically, while pressure is interpolated bilinearly. The kinematic condition is used to form the Galerkin residual for the free surface. The free surface is represented by Hermite polynomials of zeroeth order for continuity of position and slope. Combined Newton's iteration is used to simultaneously solve for the free surface and the field variables. Results of velocity and pressure fields, as well as the free surface are shown to converge with mesh-size refinement. There is excellent respect for mass conservation. Results are presented for various values of Rossby number (Ro) and height-based Reynolds number (ReH). Parameter continuation in Ro and ReH space is used to compute solutions at higher values of flow rate and angular velocity. Copyright © 2002 John Wiley & Sons, Ltd." @default.
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- W2109136986 date "2002-01-01" @default.
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- W2109136986 title "Finite element study of free surface turbulent flow in rotating channels" @default.
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- W2109136986 doi "https://doi.org/10.1002/fld.220" @default.
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