A statistical particle path tracking method is applied to a hollow rotating detonation engine
(RDE) with a Laval nozzle, and the flow field characteristics are investigated. The in-house
solver BYRFoam based on OpenFOAM is used, and a large-area outflow field at the tail of
the combustor and an array of injection holes are implemented. The influence mechanism of
the tail nozzle on the internal and external flow fields of the hollow RDE is revealed. The
results confirm that the tail nozzle helps suppress the rotating shock wave of the outflow …