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The result of an unsteady analysis of the conditions leading to a wedge-triggered detonation wave in a premixed hydrogen-air supersonic flow is presented. The configuration of interest here corresponds to a delayed oblique detonation wave (ODW), resulting from an oblique shock wave (OSW) transition. Different types of steady and unsteady configurations are evidenced numerically. The computed conditions...
The development of models for the prediction of combustion in supersonic flows must take into account the specific features of these flows, in which couplings exist between compressibility, mixing, and exothermic chemistry. Indeed, it has been shown in our previous work that, in the case of laminar boundary and mixing layers, viscous dissipation heating plays an essential role in the development of...
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