Temperature and velocity measurements of imploding detonation
作者单位：Yokohama National University79-5 TokiwadaiHodogaya-kuYokohama 240-8501Japan Yokohama National University79-5 TokiwadaiHodogaya-kuYokohama 240-8501Japan Yokohama National University79-5 TokiwadaiHodogaya-kuYokohama 240-8501Japan Yokohama National University79-5 TokiwadaiHodogaya-kuYokohama 240-8501Japan Yokohama National University79-5 TokiwadaiHodogaya-kuYokohama 240-8501Japan
会议名称：《The24thInternationalSymp...》
会议日期：2004年
学科分类：08[工学]
摘 要：正 Using stoichiometric hydrogen-oxygen and propane-oxygen mixtures, the detonation was made spherically converge toward the center of the detonation chamber, whose cross section was made conical. The scratch was observed at the center. The depth and the width of the deepest point of the scratch were twenty and several μm and 0.1 mm, respectively.Also the converging profiles of the stoichiometric hydrogen-oxygen mixture were followed by measuring pressure profiles at various radii. The relations between the pressure P/PCJ and the radius （r/Ro）m agreed well with those of propane-oxygen mixture. The power dependencies m were m=1.1±0.2 for the incident detonation, m=0.9±0.1 for the first reflected shock wave, m=1.2±0.1 for the second reflected shock wave.The argon temperatures at imploding center were 7000±4000 K between 1 and 3 μs and the electron temperatures were 20000±10000 K, which were measured by estimation of Bremsstrahlung.