Intermediate wake characteristics behind a circular cylinder

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Contributors

Abstract

The intermediate wake of a circular cylinder at Reynolds number 3300 is studied by means of highly resolved large eddy simulations. The domain spans 100 cylinder diameters D downstream of the cylinder. The intermediate wake is taken here as the region between 6D and 50D downstream of the cylinder. Initially, the velocity deficit shows a marked decrease. This rate of decrease diminishes in the region 10D to 20D downstream of the cylinder centre. Thereafter, it starts to evolve following the far-wake behaviour. The wake half-width exhibits a marked increase in the region 20D to 40D. It is in this region where the von Kárman vortex street looses its coherence.

Details

Original languageEnglish
Title of host publication14th International ERCOFTAC Symposium on Engineering, Turbulence, Modelling and Measurements
Publication statusPublished - 2023
Peer-reviewedYes

Conference

Title14th International ERCOFTAC Symposium on Engineering, Turbulence, Modelling and Measurements
Conference number
Duration6 - 8 September 2023
Location
CityBarcelona
CountrySpain