双驱动激波管稀疏波破膜技术研究

本文介绍了在双驱动激波管中运用稀疏波破膜的技术。在以压缩空气和氮气作实验气体的情形下，实验研究了中间段长度、稀疏波强度及中间段B膜的破膜压力（压差）对第二激波追韩第一激波的影响。实验结果表明：中间段的长短，显著地制约着前后两道激波的间隔；稀疏波强度及中间段B膜的破膜压力对稀疏波破膜时间及第二激小对反射稀疏波的追赶有重要影响。

An Experimental Technique of Diaphragm Burstingby Rarefaction Wave in Double Driver Shock Tube

This paper presents an experimental technique of diaphragm bursting by virtue of the rarefaction wave in double driver shock tube. As far as the compressed air and nitrogen gas are concerned, the effects of length of intermediate section, rarefaction strength and bursting pressure difference across diaphragm on second shock which pursues first shock are experimentally investigated. Experimental results indicate that the interval between two shocks is influenced by the length of intermediate section. The diaphragm opening time due to the rarefaction wave and second shock which pursues reflected rarefaction wave are influenced by the rarefaction strength and breaking pressure difference of diaphragm at the end of intermediate section.