Development of a Method for Enhanced Fan Representation in Gas Turbine Modeling. (17th July 2011)

• Record Type: Journal Article
• Authors: Doulgeris, Georgios; Khaleghi, Hossein; Kalfas, Anestis; Pilidis, Pericles
• Other Names: Nalim M. Razi Academic Editor.
• Is Part Of: International journal of rotating machinery. Volume 2011(2011)
• Publication Date: 2011-07-17
• Subjects: Machinery -- Periodicals; Rotary combustion engines -- Periodicals; Turbines -- Periodicals; Hydraulic machinery -- Periodicals; 621.82
• DOI: 10.1155/2011/182906
• Languages: English
• ISSNs: 1023-621X

Abstract

Abstract : A 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, semiembedded on the upper surface of a broad wing airframe.