强激光与粒子束2025，Vol.37Issue(2)：22-30,9.DOI:10.11884/HPLPB202537.240209
超声速中心引射器数值仿真与试验特性
Simulation and experimental characteristics of supersonic center ejector
张赛强 1徐万武 2李智严 1梁涛 1张一凡3
作者信息
- 1. 国防科技大学高超声速技术实验室,长沙 410073
- 2. 国防科技大学高超声速技术实验室,长沙 410073||国防科技大学试验技术研究中心,长沙 410073
- 3. 国防科技大学试验技术研究中心,长沙 410073
- 折叠
摘要
Abstract
Compared with vacuum tank system,supersonic injection technology has significant advantages in pressure recovery of chemical laser weapons,among them,the supersonic center injector has greater injection potential due to its smaller total pressure loss.Simulation and experimental studies were conducted on the supersonic center injector.The results show that for the supersonic center injector with a contraction-type mixing chamber,although it is easier to reach the working state,it is not superior to the straight-type injector under the condition of fixed injection coefficient and maintaining a lower blind cavity pressure.Under the condition of variable injection coefficient(fixed secondary mass flow rate),for every 0.05 increase in the area contraction ratio of the mixing chamber,the primary mass flow rate needs to be increased by approximately 0.3 kg/s to reach the critical start-up state.The overall injection performance of the supersonic injector reaches its highest when it is at the critical start-up state.In terms of blind cavity extraction capability,the single-stage supersonic center injector is significantly superior to other types of injectors,with a minimum of 1.3 kPa achievable.关键词
超声速引射/中心引射器/压力恢复/收缩比/抽盲腔能力Key words
supersonic injection/center injector/pressure recovery/contraction ratio/blind cavity extraction capability引用本文复制引用
张赛强,徐万武,李智严,梁涛,张一凡..超声速中心引射器数值仿真与试验特性[J].强激光与粒子束,2025,37(2):22-30,9.
