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- W3120456927 abstract "Abstract Modern commercial airliners use multi-element aerofoils to enhance take-off and landing performance. Further, multielement aerofoil configurations have been shown to improve the aerodynamic characteristics of wind turbines. In the present study, high resolution Large Eddy Simulation (LES) is used to explore the low Reynolds Number (Re = 0.832 × 104) aerodynamics of a 30P30N multi-element aerofoil at an angle of attack, α = 4°. In the present simulation, wake shed from a leading edge element or slat is found to interact with the separated shear layer developing over the suction surface of the main wing. High receptivity of shear layer via amplification of free-stream turbulence leads to rollup and breakdown, forming a large separation bubble. A transient growth of fluctuations is observed in the first half of the separation bubble, where levels of turbulence becomes maximum near the reattachment and then decay depicting saturation of turbulence. Results of the present LES are found to be in close agreement with the experiment depicting high vortical activity in the outer layer. Some features of the flow field here are similar to those occur due to interactions of passing wake and the separated boundary layer on the suction surface of high lift low pressure turbine blades." @default.
- W3120456927 created "2021-01-18" @default.
- W3120456927 creator A5006328071 @default.
- W3120456927 creator A5044020985 @default.
- W3120456927 date "2020-09-21" @default.
- W3120456927 modified "2023-09-26" @default.
- W3120456927 title "Large Eddy Simulation of Wake-Shear Layer Interactions Over a Multi-Element Aerofoil" @default.
- W3120456927 doi "https://doi.org/10.1115/gt2020-14115" @default.
- W3120456927 hasPublicationYear "2020" @default.
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