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Fluid Flow & Heat Transfer within the Roating Cavities of Internal Cooling Air Systems of Gas Turbines

Objective


The project has successfully delivered:
- An extensive data base of pressure, temperature and flow measurements for each of the five rotating flow systems;
- Numerical models, in the form of Computational Fluid Dynamics (CFD) and Finite Element (FE) models which have been validated against selected experimental test cases, and which are believed to capture the important physical mechanisms which govern flow and heat transfer in each rotating flow system;
- Through analysis and interpretation of the experimental and numerical results, an improved understanding of the important physical phenomena, and guides to the optimum modelling method for a given situation;
- Correlations of experimental and numerical analysis results for three of the five rotating flow systems.
Objectives and content
This project is concerned with the problems of heat
transfer and fluid flow within gas turbine internal
cooling air systems, with the aim of improving the design
of the latter for both advanced aircraft and electrical
power generation gas turbines. Participants in the
proposal are ten major European engine manufacturers and
four Universities specialising in this type of work.
The approaches will include; (a) advanced experimental
work to obtain much improved data under representative
operating conditions, (b) evaluation of flow and heat
transfer models and CFD codes, (c) development of
improved 3D models and correlation's for design purposes
and (d) establishing a more standardised European
approach to these problems.
The five separate, but related, topics which will be
studied are:
Turbine annulus hot gas ingestion control.
Airflow and heat transfer in rotating cavities with
axial and axial/radial through flow.
Compressor stator well heating.
Turbine cooling air pre-swirl systems.
Airflow and heat transfer in a high-pressure compressor
drives cone cavity.
These aspects cover the most critical problems which
remain to be solved in the field of internal air systems
design, and the improved understanding resulting from
this project will significantly improve detailed
predictive engine design and reduce the overall engine
production cycle time. In addition, the project will
result in reduced fuel consumption (up to 1%) and longer
component life due to lower cooling air temperatures
within the engine. The project will enable European
turbine engine manufacturers to remain fully competitive
in worldwide markets as well as improving their growing
transnational co-operation.
The proposal is compliant with topics 3A.3.9. And
3A.3.5. Of the IMT program, and could usefully form part
of the proposed targeted research action on 'Efficient
and Environmentally Friendly Aircraft Propulsion'
(EEFAP). The project is also one of the high priority
topics identified by the Engine Industry Management Group
(EIMG).

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Rolls Royce PLC
Address

DE24 8BJ Derby
United Kingdom

Participants (13)

AACHEN UNIVERSITY OF TECHNOLOGY
Germany
Address
Templergraben 55
52056 Aachen
ABB Kraftwerke Ltd
Switzerland
Address

5401 Baden
ALSTOM POWER UK LTD.
United Kingdom
Address
Lindum House, 11 Sewell Road
Lincoln
BMW Rolls-Royce GmbH - Aeroengines
Germany
Address
11,Eschenwegtrasse
15827 Dahlewitz
FIAT AVIO SPA
Italy
Address
Via Nizza, 312
10127 Torino (Turin)
INDUSTRIA DE TURBO PROPULSORES SA
Spain
Address
Ctra Torrejon-ajalvir Km 3,5 Torrejon De Ardoz
28830 San Fernando De Henares
MTU Motoren- und Turbinen-Union München GmbH
Germany
Address
665,Dachauer Strasse
80995 München
Société Nationale d'Etudes et de Construction de Moteurs d'Aviation
France
Address

77550 Moissy-cramayel
TURBOMECA SA
France
Address
Avenue Du Président Szydlowski
64511 Bordes
University of Bath
United Kingdom
Address
Claverton Down
BA2 7AY Bath - Avon
University of Sussex
United Kingdom
Address
Falmer
BN1 9QT Brighton - East Sussex
Universität Karlsruhe (Technische Hochschule)
Germany
Address
12,Kaiserstrasse
76128 Karlsruhe
VOLVO AERO CORPORATION AB
Sweden
Address

461 81 Trollhaettan