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Performance simulation of a high-bypass turbofan with a 2D representation of the intake and fan components

Published online by Cambridge University Press:  03 February 2016

F. C. Mund  and
P. Pilidis
F. C. Mund
Affiliation:
Department of Power, Propulsion and Aerospace Engineering, School of Engineering, Cranfield University, Cranfield, UK
P. Pilidis
Affiliation:
Department of Power, Propulsion and Aerospace Engineering, School of Engineering, Cranfield University, Cranfield, UK
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Abstract

In conventional gas turbine performance simulation, engine components are represented by characteristics where the 3D properties of the flow fields are averaged providing key flow properties at the component interfaces. Even though a very efficient method, the simplification of 3D flows to an averaged value is not always desirable. In particular for high-bypass turbofan aero-engines, the fan generates significant pressure variations from hub to tip. These profiles are affected by the flow profile resulting from the intake where boundary layers introduce radial distortion patterns.

This study investigates a performance simulation method where the intake and fan component of a two-shaft high-bypass turbofan are represented in an axi-symmetric 2D fashion. The intake was modelled using a commercial computational fluid dynamics tool. The remaining engine components were modelled using an in-house conventional gas turbine simulation tool with a radial representation of the fan. The coordinated application of both tools required an iterative data exchange, which is described in detail.

The inclusion of the radial representation of fan and intake showed twice the effect on thrust per inlet loss at cruise conditions. It was therefore worth considering despite the significant numerical effort.

Type
Research Article
Information
The Aeronautical Journal , Volume 112 , Issue 1137 , November 2008 , pp. 673 - 682
Copyright
Copyright © Royal Aeronautical Society 2008

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References

1. Veres, J.P., Overview of high-fidelity modelling activities in the numerical propulsion system simulation (NPSS) project, 2002 Technical Memorandum TM-2002-211351, NASA, USA.Google Scholar
2. Lytle, J.K., The numerical propulsion system simulation: a multi disciplinary design system for aerospace vehicles, 1999, Technical Memorandum TM-1999-209194, NASA, USA.Google Scholar
3. Turner, M.G., Reed, J.A., Ryder, R. and Veres, J.P., Multi-fidelity simulation of a turbofan engine with results zoomed into mini-maps for a zero-d cycle simulation, 2004, Paper GT2004-53956, ASME TurboExpo, 14-17 June 2004, Vienna, Austria.CrossRefGoogle Scholar
4. Barber, T.J., Choi, D., McNulty, G.S., Hall, E.J. and Delaney, R.A., Preliminary findings in certification of ADPAC, 1994, Paper AIAA 94-2240, AIAA Fluid Dynamics Conference, 20-23 June 1994, Colorado Springs, Colorado, USA.Google Scholar
5. Hall, E.J., Delaney, R.A., Lynn, S.R. and Veres, J.P., Energy efficient engine low pressure subsystem aerodynamic analysis, 1998, Technical Memorandum TM-1998-208402, NASA, USA.CrossRefGoogle Scholar
6. Reed, J.A. and Afjeh, A.A., Development of a prototype simulation executive with zooming, 1995, Numerical Propulsion System Simulation. Grant Report NCC3-207, University of Toledo, Ohio, USA.Google Scholar
7. Turner, M., Norris, A. and Veres, J.P., High-fidelity three-dimensional simulation of the GE90, 2004, Technical Memorandum TM-2004-212981,NASA, USA.Google Scholar
8. Uenishi, K., Pearson, M.S., Lehnig, T.R. and Leon, R.M., Computational fluid dynamics based three dimensional turbofan inlet/fan cowl analysis system, J Propulsion and Power, January 1992, 8, (1), p 175–173.CrossRefGoogle Scholar
9. Hale, A., Davis, M. and Sirbaugh, J., A numerical simulation capability for analysis of aircraft inlet – engine compatibility, 2004, Paper GT2004-534 73, ASME Turbo Expo, 14-17 June 2004, Vienna, Austria.CrossRefGoogle Scholar
10. Pachidis, V., Pilidis, P., Talhouam, F., Kalfas, A. and Templalexis, I., A fully integrated approach to component zooming using computational fluid dynamics, 2005, Paper GT2005-68458, ASME TurboExpo, 6–9 June 2005, Reno-Tahoe, Nevada, USA.CrossRefGoogle Scholar
11. Cumpsty, N., Jet Propulsion, 2000, Cambridge University Press, Cambridge, UK.Google Scholar
12. Curnock, B., Yin, J., Hales, R. and Pilidis, P., High-bypass turbofan model using a fan radial-profile performance map, Aircraft Design, June-September 2001, 4, (2-3), p 115–126.CrossRefGoogle Scholar
13. Doulgeris, G.C., Modelling & Integration of Advanced Propulsion Systems, 2008, PhD thesis, Cranfield University.Google Scholar
14. Reid, C. The response of axial compressors to intake flow distortion, 1969, ASME International Gas Turbine and Aeroengine Congress and Exhibition, March 1969, New York, NY, USA.Google Scholar
15. Fluent 6.0 User’s Guide, 2001, Fluent, Lebanon, USA.Google Scholar
16. Walsh, P.P. and Fletcher, P., Gas Turbine Performance, 1999, Blackwell Science, Oxford, UK.Google Scholar
17. Mund, F.C., Doulgeris, G. and Pilidis, P., Enhanced gas turbine performance simulation using CFD modules in a 2D representation of the low-pressure system for a high bypass turbofan, 2006, Paper GT2006-90440, ASME Turbo Expo, 8-11 May 2006, Barcelona, Spain.Google Scholar
18. Shahpar, S., Giacche, D. and Lapworth, L., Multi-objective design and optimisation of bypass outlet-guide vanes, 2003, Paper GT2003-38700, ASME Turbo Expo, 16-19 June 2003, Atlanta, GA, USA.CrossRefGoogle Scholar
19. Reed, J.A. and Afjeh, A.A., A comparative study of high and low fidelity fan models for turbofan engine system simulation, 1997, IASTED International Conference on Applied Modelling & Simulation, July 1997, Banff, Canada.Google Scholar