Tutorial for the Premixed Combustion in the Conical Chamber using the Zimont Model. Conical Combustion Chamber with Methane - Air Mixture. Equivalence ratio of 0.6.High speed flow reverses d…Full description
Tutorial for the Premixed Combustion in the Conical Chamber using the Zimont Model. Conical Combustion Chamber with Methane - Air Mixture. Equivalence ratio of 0.6.High speed flow reverses d…Full description
douemntDescripción completa
Descripción: Combustión y ecuaciones sobre carburación.
Descripción completa
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Fluent Forever summary bookFull description
88yuzu99, otoe12Descripción completa
Descripción: Great Knowledgeable book for the staters and for people who want to some extra things in fluent and gambit
Wrap-up: Day-1 15.0 Release
Advanced Combustion Training
What we covered today? Solid or Liquid Fuels (DPM)
Transport Equations • • • •
Mass Momentum Energy Turbulence
Fast Chemistry Models •
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Turbulence Models •
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RANS: k-e, k-w, RSM….. LES, DES, SAS ….
Chemistry Solution
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Species OR Mixture fraction OR Progress variable OR
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……
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Combusting Flow Solution
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Eddy Dissipation model Premixed model Equilibrium model Steady Laminar Flamelet model Flamelet Generated Generated Manifold model Partially premixed model
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• • •
Radiation Models •
Finite Rate (Slow) Chemistry Models • • •
Laminar Finite rate model EDC Composition PDF
Droplet/particle dynamics DEM collisions Evaporation Devolatilization Heterogeneous reaction
P1, DO (Gray/Non-gray)
Real Gas Effects •
SRK, ARK, RK, PR, UDRGM
Pollutant Models •
Combustion Models
NOx, Soot, SOx
Models for Additional Physics
Summary of the models Model
Solved Variables
What it needs from user? Thermodynamic file
Equilibrium
Mixture Fraction
• •
Default file is available and used by the solver Need to use specific file if required species is not available or properties are changed for particular species
Laminar Flame Speed Premixed Premixe d
Progress Variable
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Steady Laminar Flamelet Model Flamelet Generated Manifold Model
Default flame speed correlations are available Check the range of applicability before using them
Appropriate Reaction Mechanism
•
•
Appropriate Reaction Mechanism Selection of TurbulenceTurbulence-Chemistry Chemistry Interaction
NOTE: Of course, other inputs like boundary conditions, solution parameters would need in any case!
Keep in mind! •
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•
All models discussed today are fast chemistry models – FGM can be used as a finite rate closure model, though Mostly, easy to use and less computational comp utational time In general, predict temperature and major species sp ecies composition accurately – Radical species may be far off from the requirements These models are not suitable for NOx modeling – Post-processing models can be used for NOx predictions OR – Finite chemistry models are required to accurately capture slow forming NOx
