Prediction of turbulent source flow between stationary and rotating discs

• Published in: The International journal of heat and fluid flow 1985, Vol.6 (2), p.69-78
• Main Authors: Truman, C.R., Jankowski, D.F.
• Format: Article
• Language: English
• Subjects: corotating discs; disks; Exact sciences and technology; Fluid dynamics; fluid mechanics; Fundamental areas of phenomenology (including applications); modeling; modelling; Physics; rotating bodies; source flow; stationary discs; turbulence; turbulent flow; Turbulent flows, convection, and heat transfer
• ISSN: 0142-727X; 1879-2278
• DOI: 10.1016/0142-727X(85)90038-4

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