Journal article

Simulations of compressibility effects in centrifugal buoyancy-induced flow in a closed rotating cavity

D Saini, RD Sandberg

International Journal of Heat and Fluid Flow | Elsevier | Published : 2020

Abstract

In this study, we investigate centrifugal buoyancy-induced flow by conducting numerical experiments for Rayleigh numbers in the range of 105 to 108. The primary focus of the study is to understand the fluid flow and heat transfer induced by centrifugal buoyancy in a rapidly rotating system with direct relevance to the internal air system of a gas-turbine engine. We solve the compressible Navier–Stokes equations in an inertial frame of reference. Flow visualization shows the formation of counter-rotating convection cells in the domain analogous to Rayleigh–Bénard convection. The prediction of wall heat transfer shows good agreement with experimental data for low Rayleigh number but deviates f..

View full abstract

University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

This work was supported by resources provided by the Pawsey Supercomputing Centre with funding from the Australian Government and the Government of Western Australia. This research was also undertaken using the LIEF HPC-GPGPU Facility hosted at the University of Melbourne. This Facility was established with the assistance of LIEF Grant LE170100200.