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A computational study of turbulent flow separation for a circular cylinder using skin friction boundary conditions

  • Johan Hoffman
  • Niclas Jansson
Part of the ERCOFTAC Series book series (ERCO, volume 16)

Abstract

In this paper we present a computational study of turbulent flow separation for a circular cylinder at high Reynolds numbers. We use a stabilized finite element method together with skin friction boundary conditions, where we study flow separation with respect to the decrease of a friction parameter. In particular, we consider the case of zero friction corresponding to pure slip boundary conditions, for which we observe an inviscid separation mechanism of large scale streamwise vortices, identified in our earlier work. We compare our computational results to experiments for very high Reynolds numbers. In particular, we connect the pattern of streamwise vorticity in our computations to experimental findings of spanwise 3d cell structures reported in the literature.

Keywords

Turbulent boundary layer flow separation General Galerkin method a posteriori error estimation adaptive finite element method skin friction boundary conditions 

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Computational Technology LaboratoryComputer Science and Communication, KTHStockholmSweden

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