Abstract:Spherical projectiles were launched into detonable mixtures over a wide range of projectile velocities from near to about 1.8 times the Chapman-Jouguet (C-J) velocity. Oblique detonation waves (ODWs) and shock-induced combustions (SICs) stabilized around the projectiles were visualized with high time and high spatial resolutions using the Schlieren technique and a high-speed camera with a 1-s frame speed. Unsteady wave structures called Straw Hat type structures consisting of a SIC region followed by a C-J OD… Show more
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