A Hybrid Eulerian-Lagrangian Inethod For LES Of Atomizing Spray
Author(s)
F. Ham, Y.-N. young, S.
Apte & M. Herrmann
Abstract
A hybrid Eulerian-Lagrangian method for LES
of atomising spray
F. am', Y.-N. young2, S. ~ ~ t e ' & M. ~errmann~
I Center for Integrated Turbulence Simulations, Stanford University, USA
'center for Turbulence Research, Stanford University, USA
Abstract
Our goal in the this work is to develop a hybrid Eulerian-Lagrangian technique
for simulating the breakup and atomization of liquid jets. The large scales associated
with the primary breakup of the liquid jet are captured using an Eulerian
surface capturing technique. The present formulation uses the particle level set
method of Enright et al. [3] implemented on an adaptive Cartesian mesh. The
small scales associated with secondary breakup are modeled using a stochastic
sub-grid model by tracking the droplets in a Lagrangian framework [I]. The transition
from primary (Eulerian) to secondary (Lagrangian) atomization is defined
implicitly by the local grid resolution, taking place when the liquid interface can
no longer be properly resolved on the
Keywords
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