Detonation combustion of hydrogen in an axisymmetric channel with a central body

The problem of initiation and stabilization of detonation combustion of a hydrogen-air mixture injected into an axisymmetric channel with a finite-length central body in a flow with a Mach number $\mathrm{M}_0=5-9$ is solved. It is numerically demonstrated that the presence of the central body both in a convergent-divergent nozzle and in an expanding channel leads to stabilization of detonation combustion of a stoichiometric hydrogen-air mixture at free-stream Mach numbers $\mathrm{M}_0>7$. Various channel configurations that ensure different values of thrust generated by detonation combustion of a stoichiometric hydrogen-air mixture are compared.