Numerical simulation of a laboratory-scale turbulent V-flame

Area of Science:

• Combustion Science
• Computational Fluid Dynamics
• Turbulent Flames

Background:

• Rod-stabilized premixed turbulent V-flames are crucial for understanding combustion processes.
• Accurate simulation of these flames requires advanced numerical methods and detailed chemical kinetics.

Purpose of the Study:

• To perform a three-dimensional, time-dependent simulation of a laboratory-scale turbulent V-flame.
• To validate the simulation against experimental data for flame morphology and velocity fields.
• To explore the use of computation in connecting turbulent flame experiments with combustion chemistry.

Main Methods:

• Employed a time-dependent low-Mach-number model with detailed chemical kinetics.
• Utilized an adaptive mesh refinement strategy for resolving flame and turbulent structures.
• Implemented a second-order projection formulation without explicit subgrid models for turbulence or turbulence/chemistry interaction.

Main Results:

• The simulation accurately reproduced the basic flame morphology of the turbulent V-flame.
• The computed mean velocity field closely matched experimental measurements.
• Demonstrated the capability of the numerical approach to capture key flame characteristics.

Conclusions:

• The developed computational model effectively simulates laboratory-scale turbulent V-flames.
• The study highlights the potential of computational approaches to link experimental observations with fundamental combustion chemistry.
• Identified key challenges and implications for future simulation-based combustion research.