Effects of preform structure on mechanical properties of carbon - carbon composite for nozzle exit cone 噴管出口錐材料力學(xué)性能的影響
Uniform distribution of cavitation at the nozzle exit section is obtained by increasing length - diameter ratio and leads to the improvement of atomization 從燃油空穴霧化理論的角度出發(fā),空穴強度的提高以及在出口截面上的均勻分布都有利于燃油的破碎霧化。
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 實驗表明,擴壓段應(yīng)安裝在距主噴管較近的位置,并具有與主噴管相匹配的入口面積和形狀。
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 表明在引射火箭設(shè)計時,應(yīng)結(jié)合引射火箭的結(jié)構(gòu)和流動參數(shù)對二次噴管出口面積進行優(yōu)化設(shè)計,以達到最佳推力性能。