NASA Emissions Reduction and Alternative Fuels Research UTIAS ...

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National Aeronautics and Space Administration Selected NRA Summary Slides • Subsonics Fixed Wing Project – 6 Round 1(FY07) – 3 Round 2 (FY07) • Supersonics Project – 6 Round 1 (FY07) – Round 1 (FY08) proposals currently being evaluated 26
Integrated Large Eddy Simulation of Multi-Phase Turbulent Reacting Flows for Realistic Gas-Turbine Combustors PI: Heinz Pitsch, Stanford University Modeling issues for predictive simulations of aircraft engine combustion DNS of atomizing liquid jet and induced voriticy • Primary breakup process of liquid fuel – DNS and modeling • Combustion modeling – Coupled TPDF/Flamelet-Progress Variable model – Joint PDF of mixture fraction and progress variable from TPDF – Mixing from flamelet model • Reduced chemical models for Fischer-Tropsch fuels – Detailed and reduced chemical schemes will be developed based on a component library approach – Automatic reduction strategies • Validation with simple experiments and full engine geometries 27
Page 1 and 2: National Aeronautics and Space Admi
Page 25: National Aeronautics and Space Admi
Page 29 and 30: Objective: Development of comprehen
Page 31 and 32: Electron Microscopy, Spectroscopy a
Page 33 and 34: Emissions Prediction and Modeling o
Page 35 and 36: Technical Challenge: Turbulent Comb
Page 37: Active Combustion Control for Low E

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