10th joint ERCOFTAC-IAHR-QNET/CFD Workshop on Refined
Turbulence Modelling
October 10-11, 2002
Laboratoire d'études aérodynamiques
University of Poitiers, France
Local Organization: J.-P. Bonnet, R. Manceau
Contact: remi.manceau@lea.univ-poitiers.fr
Turbulence modelling, and, in particular, the Reynolds Averaged Navier-Stokes (RANS) approach, is today a widely used methodology in industrial design and optimization. While Computational Fluid Dynamics (CFD) commercial softwares used in industries mostly include well known simple, robust models whose deficiencies are widely recognized, a number of research teams, in particular in Europe, are currently working on the development of more complex models, based on the physical insight gained in the recent years. The aim of ERCOFTAC-IAHR Workshops on Refined Turbulence Modelling, as well as of the QNET-CFD network, is to bring together researchers, developers and users, in order to confront cutting edge turbulence models with well known models, in the frame of test cases of industrial relevance, for which detailed Experimental and/or Numerical Simulations (DNS, highly resolved LES) are available. An increase of the global knowledge of the comparative performances of the models and their range of applicability is then expected.
Following the previous workshops, the test cases chosen for the workshop to be held in Poitiers are all very challenging cases, involving complex underlying mechanisms of primary significance in industrial applications. Two of the test cases, i.e., the flow over a periodic 2D hill and the flow around the Ahmed body (simplified car body), were already selected for the preceding workshop held in Darmstadt, Germany: the complexity of the underlying mechanisms and the challenge they represent for turbulence models have incited the renewal of these test cases.
Test cases
The workshop focuses on three test cases involving complex features: boundary layer separation on a smooth wall, recirculation, reattachment, boundary layer recovery, wake/mixing layer interaction, three-dimensionality, massively separated wake, etc.
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CASE 10.1 |
CASE 10.2 (wake/mixing layer interaction) |
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CASE 10.3
Flow around a simplified car body (Ahmed body)
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Additional information available at http://www.ercoftac.org/