Abo Bibliothek: Guest
Fifth International Symposium on Turbulence and Shear Flow Phenomena
August, 27-29, 2007, Technische Universität München, Munich, Germany

DOI: 10.1615/TSFP5

HYBRID V2F RANS/LES MODEL AND SYNTHETIC INLET TURBULENCE APPLIED TO A TRAILING EDGE FLOW

pages 701-706
DOI: 10.1615/TSFP5.1100
Get accessGet access

ABSTRAKT

The flow over a trailing edge is computed using two different techniques to reduce the computational costs of LES. A hybrid method designed to split the contributions of the averaged and fluctuating velocity fields is used in order to relax the near-wall mesh requirements. A synthetic method for turbulence generation is used at the inlet in order to avoid a costly precursor simulation. The methodology has been first tested on channel flows at high Reynolds numbers on coarse meshes. The results at different Reynolds numbers up to Reτ are presented. They agree well with DNS data available in terms of mean velocities and stresses. The results for the trailing-edge flow are compared with the full LES with inlet boundary conditions from a precursor boundary layer simulation. Two cases are presented, one with a precursor simulation and one with the synthetic eddy method. The predictions of mean velocities and turbulent content agree well with the reference LES simulation.

Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen Preise und Aborichtlinien Begell House Kontakt Language English 中文 Русский Português German French Spain