LES model for the particulate phase in sprays

W. Kollmann, I. M. Kennedy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


The notion of Large Eddy Simulations is extended to the discrete particle phase with the aim to improve the simulation of sprays based on the tracking of particle subsets. Particle subsets analogous to the filter volume in LES are defined as moving subsets of the flow field with fixed geometric properties containing variable particle numbers. This definition allows the computation of two-point correlations, but must account for particle transfer through the boundary of the subdomain. The dynamic equations for particle subsets are analyzed in detail and expressions for the acceleration of the subset center due to internal particle motion and particle transfer through the boundary are established. SGS models for these contributions are developed and results of preliminary tests in a frozen homogeneous flow field are presented.

Original languageEnglish (US)
Title of host publication35th Aerospace Sciences Meeting and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - 1997
Event35th Aerospace Sciences Meeting and Exhibit, 1997 - Reno, United States
Duration: Jan 6 1997Jan 9 1997


Other35th Aerospace Sciences Meeting and Exhibit, 1997
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering


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