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Updated: Jun 22, 2026
08:16
Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells
Published on: October 2, 2016
Large eddy simulation modelling of combustion for propulsion applications
1Defense Security Systems Technology, The Swedish Defense Research Agency-FOI, 147 25 Tumba, Stockholm, Sweden. fureby@foi.se
Summary
Large eddy simulation (LES) accurately models turbulent combustion for engines. This research validates LES for gas turbine and scramjet engines, improving predictive capabilities for propulsion systems.
Area of Science:
- Computational fluid dynamics
- Aerospace engineering
- Combustion science
Background:
- Turbulent combustion modeling is crucial for engine development.
- Large eddy simulation (LES) advances allow for resolving large flow scales while modeling smaller ones.
Purpose of the Study:
- To discuss and validate the use of LES for predictive modeling in propulsion applications.
- To apply validated LES models to gas turbine and scramjet combustors.
Main Methods:
- Detailed description of combustion LES models.
- Validation of LES models against laboratory data.
- Application of validated models to annular multi-burner gas turbine and simplified scramjet combustors.
Main Results:
- Good agreement between LES predictions and available experimental data.
- Elucidation of flow physics in gas turbine and scramjet combustors.
- Analysis of combustion chemistry, turbulence-chemistry interaction, self-ignition, flame holding, burner-to-burner interactions, and combustion oscillations.
Conclusions:
- Validated LES models provide accurate predictions for propulsion systems.
- LES enhances understanding of complex flow physics in engines.
- This work contributes to the advancement of air-breathing engine design and performance.
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