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Numerical Validation of a New Methodology for the Generation of Realistic Turbulent Inflow Conditions for LES

[+] Author Affiliations
Ph. Druault

Université Pierre et Marie Curie, Saint Cyr l’Ecole, France

J.-F. Largeau, F. Coiffet, J.-P. Bonnet

Université de Poitiers, Futuroscope Chasseneuil, France

S. Lardeau

Imperial College London, London, UK

Paper No. HT-FED2004-56165, pp. 391-399; 9 pages
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 2, Parts A and B
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4691-1 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME


Due to the difficulty of specifying realistic inflow conditions for numerical simulations, a new method has been recently developed permitting to use time-dependent highly turbulent velocity field as inflow condition for spatially developing Large Eddy Simulation. This methodology is based on experimental time histories obtained at few selected reference locations with hot wires probes. From these measurements, the instantaneous velocity field is reconstructed on the inlet mesh of a numerical simulation and this reconstructed field is used as inflow condition for the simulation. The objective of this work is to validate the present methodology by using a purely numerical approach, based on Direct Numerical Simulation, in which experimental data are replaced by numerical data. Based on statistical analysis and instantaneous vorticity field visualizations, current numerical validation provides promising results for this new inflow condition generation method based on real experimental data.

Copyright © 2004 by ASME
Topics: Turbulence , Inflow



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