Abstract
Recently there has been a resurgence of interest in achieving practical hypersonic flight especially since China and Russia has announced successful demonstration of their military technology. The key enabler for hypersonic is the scramjet engine as the air breathing propulsion device. Engineering design of a scramjet intake is crucial since unwanted shock-shock interactions inside the intake could impede safe combustion process. In this study, we demonstrate that minimal geometry modification of the intake could significantly increase its performance. A generic scramjet intake that performs sub optimally is shown to benefit greatly by having its cowl deflected inwards at small degree. Pressure-sensitive paint measurement showed that peak pressure due to adverse shock-shock interactions at cowl tip has been reduced significantly.
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Che Idris, A., Saad, M.R., Kontis, K. (2020). Investigation of Variable Geometry Intake to Mitigate Unwanted Shock-Shock Interactions in a Hypersonic Air-Breathing Propulsion Device. In: Rajendran, P., Mazlan, N., Rahman, A., Suhadis, N., Razak, N., Abidin, M. (eds) Proceedings of International Conference of Aerospace and Mechanical Engineering 2019 . Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4756-0_7
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DOI: https://doi.org/10.1007/978-981-15-4756-0_7
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