Abstract
It is known that the large scale explosion satisfies the similarity law. But it is not clarified that the microexplosion satisfies the similarity law or not. If the microexplosion induced spherical shock wave satisfy the similarity law, large scale explosion can be simulate by a microexplosion in a laboratory.To explore the suitable method for measuring the microexplosion phenomena, we've designed and constructed a high speed drum camera combined with a pulsed Argon-ion laser as a light source. In selecting the appropriate laser pulse interval and the mirror rotating speed, framing speed of 4×10 6 fps and 40 numbers of flame can be obtained. And in case of streak recording, streak speed of 100 ns/mm and 500 mm record length can be obtained. Consequently, it is found that the present microexplosion induced spherical shock wave satisfies the similarity law.
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