The improvement of performance simulation for gas turbines has been approached in very different ways. In particular for high-bypass turbofans, efforts have been made to investigate radial flow distributions. The aim of the presented study was to combine a conventional characteristics-based performance code using a 2D representation of the fan with 2D representations of the adjoining intake and bypass system. Computational fluid dynamics (CFD) was the chosen tool to generate modules for the intake, bypass duct, and bypass nozzle. This approach required geometry data. A design procedure to generate these components in an axisymmetric meridional fashion and the numerical requirements for the CFD modules were developed. Typical component performances were predicted and the combined use of CFD and the performance code showed that in terms of performance, the inclusion of intake and bypass losses and the radial inlet distribution was worth considering. In particular, however, the required numerical effort was significant.
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July 2007
Technical Papers
Enhanced Gas Turbine Performance Simulation Using CFD Modules in a 2D Representation of the Low-Pressure System for a High-Bypass Turbofan
Friederike C. Mund,
Friederike C. Mund
School of Engineering,
Cranfield University
, Cranfield MK 43 0AL, UK
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Georgios Doulgeris,
Georgios Doulgeris
School of Engineering,
Cranfield University
, Cranfield MK 43 0AL, UK
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Pericles Pilidis
Pericles Pilidis
School of Engineering,
Cranfield University
, Cranfield MK 43 0AL, UK
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Friederike C. Mund
School of Engineering,
Cranfield University
, Cranfield MK 43 0AL, UK
Georgios Doulgeris
School of Engineering,
Cranfield University
, Cranfield MK 43 0AL, UK
Pericles Pilidis
School of Engineering,
Cranfield University
, Cranfield MK 43 0AL, UKJ. Eng. Gas Turbines Power. Jul 2007, 129(3): 761-768 (8 pages)
Published Online: February 1, 2006
Article history
Received:
October 1, 2005
Revised:
February 1, 2006
Citation
Mund, F. C., Doulgeris, G., and Pilidis, P. (February 1, 2006). "Enhanced Gas Turbine Performance Simulation Using CFD Modules in a 2D Representation of the Low-Pressure System for a High-Bypass Turbofan." ASME. J. Eng. Gas Turbines Power. July 2007; 129(3): 761–768. https://doi.org/10.1115/1.2364197
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