Transitional flow dynamics behind a micro-ramp

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Abstract

We computed the base, instantaneous and mean flow around a micro-ramp immersed in an incompressible boundary layer. Results of our Direct
Numerical Simulations (DNS) are compared with an independent stability analysis and experiments. We analyse flow structures and mechanisms that contribute to the micro-ramp functionality and find that transitional perturbations increase the near-wall momentum in the mean flow more efficiently than the primary vortices in the laminar base flow.
Original languageEnglish
Title of host publicationProceedings of the ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurement (ETMM12)
Subtitle of host publication26-28 September 2018, Montpellier, France
Number of pages6
Publication statusPublished - 2018
Event12th International ERCOFTAC Symposium on Engineering Turbulence Measurement and Modelling - Le Quetzal Hotel and Le Prose Hotel, Montpellier, France
Duration: 26 Sep 201828 Sep 2018
Conference number: 12
https://www.ercoftac.org/events/new_etmm12/

Conference

Conference12th International ERCOFTAC Symposium on Engineering Turbulence Measurement and Modelling
Abbreviated titleETMM12
CountryFrance
CityMontpellier
Period26/09/1828/09/18
OtherThe 12th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements aims to provide a bridge between researchers and practitioners in Flow, Turbulence and Combustion by reporting fundamental and application-oriented progress in all areas of turbulence research.
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