Investigation of buoyancy-driven heat transfer in H.P compressor disc cavities

Fazeli, Seyed Mostafa, Kanjirakkad, Vasudevan and Long, Christopher (2021) Investigation of buoyancy-driven heat transfer in H.P compressor disc cavities. AIAA Propulsion and Energy 2021 Forum, Virtual (Online), 9–11 August 2021. Published in: Proceedings of the AIAA Propulsion and Energy 2021 Forum. American Institute of Aeronautics and Astronautics ISBN 9781624106118

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Abstract

A detailed knowledge of the flow structure and heat transfer within the rotor disc cavities is required for designing safe and efficient aero-engine compressors with a useful operating range. This paper presents the results from temperature field measurements obtained from the Multiple Cavity test facility at the University of Sussex. This emulates the secondary-air disc-cavity system in an aircraft engine high-pressure compressor. It comprises four externally heated disc-cavities and is supplied by a cool bore flow. The heat transfer is studied with the help of finite-element method using measured temperatures as boundary conditions. A validated 2D steady state heat conduction analysis methodology is also presented alongside Monte Carlo simulations. Results are presented for a range of values of Rossby number, Rotational and Axial Reynolds number and the buoyancy parameter.

Item Type: Conference Proceedings
Keywords: Compressor Disc, Disc cavity, Heat Transfer, Conduction equation
Schools and Departments: School of Engineering and Informatics > Engineering and Design
SWORD Depositor: Mx Elements Account
Depositing User: Mx Elements Account
Date Deposited: 12 Aug 2021 07:28
Last Modified: 26 Aug 2021 10:21
URI: http://sro.sussex.ac.uk/id/eprint/101085
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