Project
Experimental and numerical study of hydrogen combustion under engine-like operating conditions
Hydrogen combustion holds promise as a clean energy source, but understanding its turbulent behavior is crucial for its practical implementation. High-performance computing (HPC) is essential for simulating the complex dynamics of turbulent hydrogen combustion, allowing us to explore its behavior under various conditions.
Project Details
Project term
January 1, 2021–December 31, 2021
Affiliations
RWTH Aachen University
Institute
Chair of Thermodynamics of Mobile Energy Conversion Systems
Project Manager
Principal Investigator
Methods
Our research employs computational fluid dynamics (CFD) simulations to model turbulent hydrogen combustion. We utilize the G-equation model, enhanced with new equations to account for stretch effects on the laminar burning velocity. This enables us to capture the non-linear acceleration of hydrogen flames accurately.
Results
Our project has yielded promising results in understanding the behavior of turbulent hydrogen combustion. By implementing the stretch effect correction in the G-equation model, we observe qualitatively accurate flame acceleration, matching theoretical expectations. These results lay the foundation for further refinement and validation.
Discussion
The incorporation of stretch effect corrections enhances the accuracy of our model, allowing for more realistic simulations of turbulent hydrogen combustion. However, challenges remain in determining precise parameter values, which requires experimental validation. Additionally, applying the model to complex engine geometries presents an avenue for future research.
Additional Project Information
DFG classification: 404-04 Hydraulic and Turbo Engines and Piston Engines
Software: CONVERGE CFD
Cluster: CLAIX
Publications
Lückerath Moritz Numerical investigation of the initial flame kernel for the hydrogen combustion under engine-like conditions, master thesis, 2024;