Regimes of kerosene combustion in a constant-section channel with the Mach number $\mathrm{M}=1.7$ at the channel entrance

Results of studying kerosene combustion in constant-section channels for the Mach number at the channel entrance $\mathrm{M}=1.7$ are reported. The experiments are performed in channels with variations of the duct shape. The existence of flow regimes with wave structures that do not lead to the development of the pseudoshock mode of combustion is demonstrated. Critical conditions that have to be satisfied for initiation and realization of pre-detonation quasi-stationary combustion are determined.