Journal article

Numerical modelling of flow and heat transfer in the rotating disc cavities of a turboprop engine

J Faragher, A Ooi, RJ Goldstein (ed.)

HEAT TRANSFER IN GAS TURBINE SYSTEMS | NEW YORK ACAD SCIENCES | Published : 2001

Abstract

A numerical analysis of the flow and heat transfer in the cavity between two co-rotating discs with axial inlet and radial outflow of fluid, a configuration common in gas turbine engines, is described. The results are compared with the experimental data of Northrop and Owen. The effectiveness of the k-epsilon turbulence model with the two-layer zonal model for near-wall treatment of Chen and Patel is tested for this type of flow. Using three-dimensional models it is shown that modelling discrete holes at the outlet as opposed to a continuous slot, which is the approximation inherent in the two-dimensional axisymmetric model, has little effect on the predicted Nusselt number distribution alon..

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University of Melbourne Researchers