An imploding annular shock wave driven by a jet of air was used to initiate detonationsudinside a 76 mm diameter tube. The tube was filled with a test gas composed of eitherudstoichiometric ethylene-oxygen or propane-oxygen diluted with nitrogen. The strength ofudthe imploding shock wave and the sensitivity of the test gas were varied in an effort toudfind the minimum shock strength required for detonation of each test mixture. The resultsudshow that the minimum required shock strength increases with mixture sensitivity andudsuggest that impractically large shock driver pressures are required to initiate detonationsudin ethylene-air or propane-air mixtures when using this technique.
展开▼
