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Enhancement of thrust reverser cascade performance using aerodynamic and structural integration

Butterfield, Joseph and Yao, H. and Price, Mark and Armstrong, C. and Raghunathan, Srinivasan and Benard, Emmanuel and Cooper, Richard K. and Monaghan, D. Enhancement of thrust reverser cascade performance using aerodynamic and structural integration. (2004) Aeronautical Journal, vol. 108 (n° 1090). pp. 621-628. ISSN 0001-9240

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Official URL: http://www.raes.org.uk/cmspage.asp?cmsitemid=Publications_Journal

Abstract

This paper focuses on the design of a cascade within a cold stream thrust reverser during the early, conceptual stage of the product development process. A reliable procedure is developed for the exchange of geometric and load data between a two dimensional aerodynamic model and a three dimensional structural model. Aerodynamic and structural simulations are carried out using realistic operating conditions, for three different design configurations with a view to minimising weight for equivalent or improved aerodynamic and structural performance. For normal operational conditions the simulations show that total reverse thrust is unaffected when the performance of the deformed vanes is compared to the un-deformed case. This shows that for the conditions tested, the minimal deformation of the cascade vanes has no significant affect on aerodynamic efficiency and that there is scope for reducing the weight of the cascade. The pressure distribution through a two dimensional thrust reverser section is determined for two additional cascade vane configurations and it is shown that with a small decrease in total reverse thrust, it is possible to reduce weight and eliminate supersonic flow regimes through the nacelle section. By increasing vane sections in high pressure areas and decreasing sections in low pressure areas the structural performance of the cascade vanes in the weight reduced designs, is improved with significantly reduced levels of vane displacement and stress.

Item Type:Article
Additional Information:Thanks to The Royal Aeronautical Society editor. The definitive version is available at http://www.raes.org.uk/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Queen's University Belfast (UNITED KINGDOM)
Laboratory name:
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Deposited By:Emmanuel Benard

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