Numerical simulation of ignition of a hydrogen-air mixture in a flow

Key Points

• This research aims to understand the processes involved in the ignition of a hydrogen-air mixture in flow environments.
• Numerical simulation of autoignition in laminar hydrogen jets diluted with nitrogen.
• Evaluation of the effects of pulse frequency and flow velocity on ignition.
• Analysis of a transient reacting mixing layer between two flows with varying velocities and temperatures.
• Ignition is influenced by both pulse frequency and flow velocity.
• The numerical simulation successfully models the autoignition process in the hydrogen-air mixture.
• Distinct characteristics of the mixing layer contribute to the combustion dynamics observed.