Doulgeris, Georgios C.Khaleghi, H.Kalfas, Anestis I.Pilidis, Pericles2012-06-212012-06-212011-07-17Doulgeris G, Khalleghi H, Kalfas A, Pilidis P. (2011) Development of a method for enhanced fan representation in gas turbine modeling. International Journal of Rotating Machinery, Volume 2011, Article number 182906https://doi.org/10.1155/2011/182906http://dspace.lib.cranfield.ac.uk/handle/1826/7259A challenge in civil aviation future propulsion systems is expected to be the integration with the airframe, coming as a result of increasing bypass ratio or above wing installations for noise mitigation. The resulting highly distorted inlet flows to the engine, make a clear demand for advanced gas turbine performance prediction models. Since the dawn of jet engine several models have been proposed and the present work comes to add a model that combines two well established compressor performance methods in order to create a quasi three dimensional representation of the fan of a modern turbofan. A streamline curvature model is coupled to a parallel compressor method, covering radial and circumferential directions respectively. Model testing has shown a close agreement to experimental data, making it a good candidate for assessing the loss of surge margin on a high bypass ratio turbofan, semi-embedded on the upper surface of a broad wing airframe.enInlet distortionParallel compressorArticle1829062011