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The combustion module in
AEROFLO is designed to perform either direct flame
simulations for laminar configurations or
state-of-the-art modeled flame simulations for turbulent
configurations. For both configurations, AEROFLO can
simulate flames based on arbitrary detailed kinetic
models, with mixture-dependent transport and
thermodynamic properties. The only limitation is the
supercomputing power available to you!
Generally, direct flame simulations using detailed
kinetic models are limited to canonical one-dimensional
or two-dimensional laminar configurations (see sample
results below) and are used for fundamental flame
studies. The configurations of practical interest are
turbulent. For these cases, the flame-turbulence
interaction is modeled through a flamelet approach. (See
the sample results below for flow over a bluff-body and
for a reacting flow injected into a turbulent boundary
layer.)
One-Dimensional FlamesCode Validation and Fundamental Flame
Studies
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Laminar Flame Velocity |
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Stretch Rate Effects |
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Equivalence Ratio Effects |
Premixed and Partially-Premixed
Turbulent Bluff-Body Flames
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Large-Eddy Simulation (LES) coupled with a Level-Set Flamelet procedure, discretized using high-order compact/ENO schemes |
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Flamelet library based on the detailed kinetic model GRI-Mech 3.0 (53 species, 325 elementary reactions) |
Snapshots of the filtered chemical
source and vorticity fields:
Click on the
picture to download high resolution video.
Click on the
picture to download high resolution video.
Turbulent Boundary Layer - Flame Interaction
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Large-Eddy Simulation (LES) coupled with a Level-Set Flamelet procedure, discretized
using high-order WENO scheme |
Snapshot of the Flame Surface, Temperature Field, and Velocity Vectors
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