NASA Emissions Reduction and Alternative Fuels Research UTIAS ...

Emissions Prediction and Modeling of Supersonic Vehicle
Combustion Systems
PI: Heinz Pitsch, Stanford University
Modeling needs for predictive simulations of pollutant emissions in supersonic
aircraft combustors:
• Predictive models for premixed and partially
premixed combustion
• Improvements of level set model
• Dynamic model for turbulent burning velocity
• Turbulent flame structure model for level set method
• Specific multi-phase models
– Superheated evaporation
– Combustion/evaporation interaction
• Models for soot formation
– Interaction of soot formation with turbulent flow
– Multivariate statistical model for soot
• Validation for
– Well characterized simple experiments
– Full scale combustor for supersonic aircraft
Turbulent partially
premixd low-swirl flame
DNS of droplet evaporation in
turbulent reacting shear layer
Mean velocity from LES
of LDI Burner
33