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ARTICLE:
A. Toutant
CEA-Grenoble, DEN/DER/SSTH/LMDL, Grenoble, France Dr. Olivier Lebaigue
DER/SSTH/LMDL, Commissariat à l’Energie Atomique/Grenoble, 38054 Grenoble Cedex 9, France E. Labourasse
CEA-Grenoble, DEN/DER/SSTH/LMDL, Grenoble, France S. Vincent
Laboratoire MASTER-ENSCPB, Av. Pey-Berland B.P. 108, 33402 Talence Cedex; and TREFLE - UMR CNRS 8508, ENSCPB, Universite Bordeaux 1, 33607 Pessac Cedex, France P. Lubin
TREFLE - UMR CNRS 8508, ENSCPB, Universite Bordeaux 1, 33607, Pessac Cedex, France D. Lacanette
TREFLE, UMR, Pessac, France
ABSTRACT This paper is a second step in the long way towards the use of LES-like simulations to tackle with convective boiling flows. Our previous contributions have started to clarify some aspects of the isothermal momentum transfer through an interface and explain some of the couplings that exist between the kinetic energy and the interfacial energy; the present contribution gives our first results on the internal energy transfer through an interface in the frame of a simple situation where phase-change does not exist.
A set of Large Eddy Simulation (LES) filtered two-phase flow governing equations is proposed. Explicit filtering of Direct Numerical Simulations (DNS) is employed to evaluate the order of magnitude of the subgrid contributions. Simple structural models are proposed for the two dominant contributions and compared successfully with a priori evaluations performed on the DNS.
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TRB-16 pages
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