Abstract
A technique for producing imploding cylindrical shock waves through imploding detonation waves is described. It is found that using the present method of initiation, symmetrical cylindrical imploding detonation waves can be produced in equimolar acetylene-oxygen mixtures at initial pressures above 150 mm Hg. Due to the effect of area convergence, the detonation wave becomes increasingly over-driven as it implodes towards the center. In the limit the highly overdriven detonation wave approaches a strong shock wave. Pressure measurements at different radii from the center of symmetry indicate this self-amplifying characteristic of imploding detonation waves. Close agreement between the experimentally measured detonation pressures and those calculated by the Chester-Chisnell-Whitham method is obtained.
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