Large-eddy simulation of multiphase flows in complex combustors

S. V. Apte, K. Mahesh, F. Ham, G. Constantinescu, P. Moin

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Large-eddy simulation (LES) is a promising technique to accurately predict reacting multi-phase Sows in practical combustors involving complex physical phenomena of turbulent mixing and combustion dynamics. Our goal in the present work is to develop a computational tool based on particle-tracking schemes capable of performing hi-fidelity multiphase flow simulations with models to capture liquid-sheet breakup, droplet evaporation, droplet deformation and drag. An Eulerian low-Mach number formulation on arbitrary shaped unstructured grids is used to compute the gaseous phase. The dispersed phase is solved in a Lagrangian framework by tracking a large number of particles on the unstructured grid. The interphase mass, momentum, and energy transport are modeled using two-way coupling of point-particles. A series of validation simulations are performed in coaxial and realistic gas-turbine combustor geometries to evaluate the predictions made for multiphase, turbulent flow.

Original languageEnglish (US)
Pages (from-to)53-62
Number of pages10
JournalAdvances in Fluid Mechanics
Volume37
StatePublished - Aug 5 2004
EventSecond International Conference on Computational Methods in Multiphase Flow, MULTIPHASE FLOW II - Santa Fe, NM, United States
Duration: Nov 3 2003Nov 5 2003

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