摘要
为了研究直排型扩压器的压力恢复能力,设计了一套可模拟不同背压环境的扩压器装置。在扩压器平直段后接入电动闸板阀,通过调节气流的流通面积模拟不同的背压环境。考虑到闸板阀前平直段对扩压器工作性能的影响,建立了扩压器流场的仿真分析模型,得到了加入闸板阀的扩压器装置的流场,进行了扩压器平直段的优化设计,并开展了验证试验。结果表明,仿真分析与实验结果符合得较好,平直段设计合理时,采用闸板阀模拟不同背压环境的方式是可行的,直排型扩压器的恢复压力测试结果稳定可靠。
To study the pressure recovery ability of the diffuser of chemical lasers,an equipment that can simulate different background pressure is designed.The simulated background pressure can be changed by changing the valve’s pass area.The influence of the straight part’s length before the valve being considered,different length models are simulated and the validation test is carried out,whose result is consistent with that of the simulation.The result shows the feasibility of simulating different background pressure with a flashboard valve.The equipment will redound to the investigation of the diffuser’s recovery pressure in chemical lasers.
作者
李金雪
颜飞雪
王植杰
Li Jinxue;Yan Feixue;Wang Zhijie(The 718th Research Institute of China Shipbuilding Industry Corporation,Handan 056027,China)
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2020年第7期15-18,共4页
High Power Laser and Particle Beams
基金
国防科技创新特区项目。
关键词
化学激光器
扩压器
恢复压力
总压
背压
chemical laser
diffuser
recovery pressure
total pressure
background pressure
