Computation of flow and heat transfer in rotating cavities with peripheral flow of cooling air

Abstract

Numerical solutions of the Navier-Stokes equations have been used to model the flow and the beat transfer that occurs in the internal cooling-air systems of gas turbines. Computations are performed to study the effect of gap ratio, Reynolds number and the mass flow rate on the flow and the heat transfer structure inside isothermal and heated rotating cavities with peripheral flow of cooling air. Computations are compared with some of the recent experimental work on flow and heat transfer in rotating-cavities. The agreement between the computed and the available experimental data is reasonably good.