Measurement and CFD Prediction of the Flow within an H P Compressor Drive Cone

Long, Christopher A, Turner, Alan B, Kais, Guven, Tham, Kok M and Verdicchio, John A (2003) Measurement and CFD Prediction of the Flow within an H P Compressor Drive Cone. Journal of Turbomachinery, 125 (1). pp. 165-172. ISSN 0889-504X

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Abstract

In some gas turbine aeroengines, the HP compressor is driven by the H.P. turbine through a conical shaft or drive cone. This drive cone is enclosed by a stationary surface that forms the supporting material for the combustion chambers. Air used to cool the turbine blades is directed into the space around the drive cone, and a major concern to an engine designer is the temperature rise in this air due to frictional dissipation and heat transfer. This paper presents results from a combined experimental and CFD investigation into the flow within an engine representative HP compressor drive cone cavity. The experimental results show similarities in flow structure to that found in classic rotor-stator systems. Both 2-D and 3-D CFD simulations were carried out using the FLUENT/UNS code. The 3-D model which included the actual compressor blade tip clearance gave the best agreement with the experimental data. However, the computational resource required to run the 3-D model limits its practical use. The 2-D CFD model, however, was found to give good agreement with experiment, providing care was exercised in selecting an appropriate value of initial tangential velocity.

Item Type: Article
Additional Information: This is a combined experimental and CFD investigation into the flow within an aero-engine high pressure compressor drive cone cavity. The experiments are made under engine-representative conditions in a full size test rig using engine components. Both 2D and 3D simulations were carried out using FLUENT. This work was funded by the EU and a number of gas turbine manufacturers. It is of significant commercial importance since CFD codes are becoming more common in engine design and require good quality data for validation. (Contact: Jeff Dixon, Chief of Thermal Systems Group, Rolls Royce plc, Derby DE24 8BJ; email: jeffrey.dixon@rolls-royce.com). G.Kais, J. Verdicchio and K.M. Tham were all registered postgraduates in E&D.
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Christopher Long
Date Deposited: 06 Feb 2012 20:14
Last Modified: 07 Jun 2012 10:01
URI: http://sro.sussex.ac.uk/id/eprint/24931
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