Numerical Simulation of Plane and Cellular Detonation Wave Suppression in Hydrogen-Air Mixture by Inert Porous Filters

Calculations of the interaction of plane (one-dimensional) and cellular (two-dimensional) detonation waves in hydrogen-air mixture with inert filters were carried out on the basis of the proposed physical and mathematical models, based on the detailed and reduced kinetics, describing such processes. The realized detonation regimes of attenuation and suppression of detonation were revealed. Comparison of results obtained by detailed and reduced kinetics showed that reduced kinetics gives overestimated detonation velocities compared to the detailed kinetics. But the obtained concentration limits of detonation practically equal to each other for both kinetics models. Comparison of processes of attenuation and suppression of plane and cellular detonation showed that the suppression of cellular detonation is more difficult to achieve compared to a plane detonation wave. Detonation failure criterion that shows that at the increasing the filter particles diameter, it is necessary to increase the volume concentration proportionally in order to successfully suppress detonation both in the case of a plane detonation wave and in the case of cellular detonation, was obtained.

Automated summary

Calculations were conducted on the interaction between plane and cellular detonation waves in a hydrogen-air mixture with inert filters using proposed physical and mathematical models based on detailed and reduced kinetics. The study revealed the realized detonation regimes of attenuation and suppression. A comparison of results showed that reduced kinetics overestimates detonation velocities compared to detailed kinetics, but the concentration limits of detonation are practically equal for both models. The study also found that the suppression of cellular detonation is more difficult to achieve compared to plane detonation waves. A detonation failure criterion was obtained, indicating that an increase in filter particle diameter requires a proportional increase in volume concentration to successfully suppress detonation in both plane and cellular detonation cases.