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. 13 × 10 nodes.ForallsimulationscomparisonswiththeexperimentaldataandwiththeresultsoftheotherLESintheletteratureareprovided. . 9 × 10 nodesandafineronewithapproximately1 Abstract TheaimofthepresentworkistovalidateandinvestigatethebehaviourofaVariationalMu

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Academic year: 2021

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Abstract

The aim of the present work is to validate and investigate the behaviour of a Variational Multiscale formulation (VMS) in the Large Eddy Simulation (LES) of the flow around a circular cylinder at Reynolds number, based on the free-stream velocity and on the diameter, equal to 3900.

Simulations are carried out with three different eddy-viscosity closure models. Furthermore, the effect of grid resolution investigated, by using two different grid: a coarser grid of about 2.9 × 105 nodes and a finer one with

approximately 1.13 × 106 nodes.

For all simulations comparisons with the experimental data and with the results of the other LES in the letterature are provided.

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