Zhang, Kangping, Sandham, Neil and Hu, Zhiwei (2018) Instability of supersonic ramp flow with intermittent transition to turbulence. In, Grigoriadis, D., Geurts, B., Kuerten, H., Frohlich, J. and Armenio, V. (eds.) Direct and Large-Eddy Simulation X. (ERCOFTAC, , (doi:10.1007/978-3-319-63212-4_47), 24) Cham. Springer, pp. 373-378. (doi:10.1007/978-3-319-63212-4_47).
Abstract
This paper investigates the global instability of supersonic ramp flow at Mach number 4.8 at different Reynolds numbers through direct numerical simulations. It is found that a critical Reynolds number exists for the flow to become globally unstable. Transition to turbulence happens downstream of the ramp with strong intermittency and is due to the breakdown of streaky structures fed by instability from the ramp separation region.
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- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg)
- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Aeronautics, Astronautics & Comp. Eng (pre 2018 reorg) > Aerodynamics & Flight Mechanics Group (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Engineering > Aeronautical and Astronautical Engineering > Aeronautics, Astronautics & Comp. Eng (pre 2018 reorg) > Aerodynamics & Flight Mechanics Group (pre 2018 reorg)
Aeronautical and Astronautical Engineering > Aeronautics, Astronautics & Comp. Eng (pre 2018 reorg) > Aerodynamics & Flight Mechanics Group (pre 2018 reorg)
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