Large-eddy Simulation Of Multiphase Flows In Complex Combustors

Large-eddy simulation (LES) is a promising technique to accurately predict reacting multi-phase flows 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 s...

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Bibliographic Details
Published in:WIT Transactions on Engineering Sciences 2003-01, Vol.42
Main Authors: Apte, S V, Mahesh, K, Ham, F, Constantinescu, G, Moin, P
Format: Article
Language:English
Subjects:
Combustion chambers
Computational fluid dynamics
Computer simulation
Deformation
Droplets
Large eddy simulation
Mach number
Multiphase flow
Simulation
Software
Tracking
Turbulent mixing
Unstructured grids (mathematics)
Vortices
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Summary:Large-eddy simulation (LES) is a promising technique to accurately predict reacting multi-phase flows 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 m
ISSN:1746-4471
1743-3533
DOI:10.2495/MPF030061