Library Subscription: Guest
TSFP DL Home Archives Executive Committee

GENERATION OF TURBULENT INFLOW CONDITIONS FOR LARGE EDDY SIMULATION FROM STEREOSCOPIC PIV MEASUREMENTS

Laurent Perret
Laboratoire de Mecanique des Fluides, Ecole Centrale de Nantes, UMR CNRS 6598 1 rue de la Noe BP 92101, F-44321 Nantes Cedex 3, France

Joel Delville
Department of Fluid Flow, Heat Transfer and Combustion Institute Pprime - UPR 3346 - CNRS - Universite de Poitiers - ENSMA CEAT - F86036 Poitiers cedex, France

Remi Manceau
Institute Pprime, Dept. Fluid flow, heat transfer and combustion, CNRS-Univ. of Poitiers-ENSMA, France; Lab. de mathematiques et de leurs applications (LMA) CNRS-Universite de Pau et des pays de I'Adour IPRA, avenue de I'universite 64013 Pau, France; Inria Bordeaux-Sud-Ouest, project-team CAGIRE

Jean-Paul Bonnet
Institut Pprime-Branche fluide Université de Poitiers 43 route de l'aérodrome,86000 Poitiers, France

Abstract

A novel method to generate inflow data for unsteady numerical simulations is proposed. This method consists in coupling an experimental database obtained by stereoscopic PIV measurements which are under-resolved in time to a numerical code. Based on the Proper Orthogonal Decomposition of this database, the proposed approach enables the adaptation of the experimental mesh to the grid of the simulation and the modelling of the temporal dynamics of the flow field in the inlet section. To test this method, a LES of a turbulent plane mixing layer configuration is performed.