Prediction of turbulent source flow between stationary and rotating discs

摘要: Abstract Results are presented from a numerical investigation of turbulent source flow between two discs, both which stationary or corotating. Parabolic was assumed and the Box Method used to obtain marching solutions governing equations. Turbulence modelling based on extensions classical eddy-viscosity/mixing-length concepts reflect influences divergence mean-flow streamlines non-isotropic Reynolds stresses due disc rotation. The predictions for rotating case first local results available. For case, earlier work has been extended by use empirical formulae reverse transition inclusion influence streamline divergence. Comparisons with limited data corotating discs show reasonable agreement. Although turbulence models probably not optimum, they provide an adequate basis engineering studies until more extensive reliable information is