Effects of preform structure on mechanical properties of carbon - carbon composite for nozzle exit cone 喷管出口锥材料力学性能的影响
Uniform distribution of cavitation at the nozzle exit section is obtained by increasing length - diameter ratio and leads to the improvement of atomization 从燃油空穴雾化理论的角度出发,空穴强度的提高以及在出口截面上的均匀分布都有利于燃油的破碎雾化。
The experimental results show that the location of the diffuser should be close to the nozzle exit , and the shape and size of the diffuser entrance should match the nozzle exit 实验表明,扩压段应安装在距主喷管较近的位置,并具有与主喷管相匹配的入口面积和形状。
The conclusion that the optimal secondary nozzle exit area generating the maximum thrust agrees well with the numerical simulation , indicating that the exit area of secondary nozzle should be optimized according to structure and flow parameters during design 表明在引射火箭设计时,应结合引射火箭的结构和流动参数对二次喷管出口面积进行优化设计,以达到最佳推力性能。