École Nationale Supérieure de
Techniques Avancées

Abstract

The present document summarizes the studies made on shock wave refraction at a slow-fast gas-gas interface. It revisits basic shock wave concepts and analysis tools both by exploring reference articles and extending the work of a former intern on the topic. Both reg- ular and irregular refraction structures are described, along with their transition boundaries. After some critical considerations on the assumptions made to compute these boundaries, the method is applied to a reactive interface using a set of MATLAB scripts. Further results are presented in which reactive computations are conducted following the thermodynamic changes that a fluid particle experiences as it travels through a regular refraction pattern. Conditions for detonation initiation on Mach number of the incident flow are found for regular refraction patterns.