摘要
由于含能材料的高热值及其伴随着易燃易爆的特性,在管道中传播时会影响管道的形状及几何尺寸,导致爆轰的传播受到影响。为了深入探究环形扰动对爆轰波传播的影响,精确、清晰观察环形管道中爆轰波的传播动力学过程,更好地体现边界层效应和曲率管壁对爆轰波传播的影响。搭建环形扰动爆轰实验装置,在光滑圆管末段加入不同直径尺寸的扰动管实现环形扰动,利用压力传感器、烟膜组成的数据采集系统得到爆轰波速度、三波点轨迹、胞格结构等数据。成功搭建了环形扰动爆轰实验系统,并且获得了较为理想的传播数据,数据具有显著的规律性和高度的可靠性。经过验证,所搭建的爆轰实验装置具有良好的数据采集能力,所获得的数据证实了装置具备科学性与有效性。所搭建的实验系统有助于为事故防控提供理论支持,使科研仪器充分发挥支撑科技创新、社会发展的作用。
Due to the high calorific value of energetic materials combined with their flammable and explosive nature.The propagation in the tube will affect the shape and geometric dimensions of the tube,resulting in the propagation of detonations is affected.In order to deeply investigate the influence of annular perturbation on the propagation of detonation waves,accurately and clearly observe the propagation dynamics of the detonation wave in annular tube,and better reflect the influence of boundary layer effect and curvature tube wall on detonation waves.An annular disturbance detonation experimental device was built up.Annular disturbance was realized by adding disturbance tubes with different diameters to the end of the smooth circular tube.The detonation wave velocity,triple-point trajectory,and cell structure were observed by using a data acquisition system composed of pressure sensors and smoke films.The experimental system of annular disturbance detonation was constructed successfully.It was able to obtain the ideal propagation data with remarkable regularity and high reliability.After verification,the detonation experimental device built has excellent data acquisition capabilities,and the obtained data confirms that the device is scientific and effective.The experimental system built contributes to providing theoretical support for accident prevention and control,allowing scientific instruments to play a more significant role in supporting technological innovation and societal development.
作者
高玉坤
包颖昕
卢宇轩
刘婧
杨轶芙
赵焕娟
GAO Yu-kun;BAO Ying-xin;LU Yu-xuan;LIU Jing;YANG Yi-fu;ZHAO Huan-juan(School of Resources and Safety Engineering,University of Science and Technology Beijing,Beijing 100083,China;School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)
出处
《科学技术与工程》
北大核心
2025年第20期8364-8370,共7页
Science Technology and Engineering
基金
化学品安全全国重点实验室开放课题项目(SKLCS-2024023)。
关键词
爆轰实验
环形扰动
胞格结构
三波点轨迹
detonation experiment
annular perturbation
cellular structure
triple point trajectory
