| 1. | Preform technology of carbon - carbon composites nozzle exit cone
炭材料出口锥预制体技术 |
| 2. | 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 |
| 3. | 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。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | The energy equation of the thrust chamber wall was developed by omitting radical heat conduction and only considering the radiation heat transfer of the four chambers , the radiation leakage through nozzle exit , the axial and circular heat conduction
忽略径向导热，考虑推力室外向的相互及自身辐射交换、内壁经喷口的辐射泄漏以及周向和轴向的传导热量，建立了推力室壁的能量方程。 |
| 7. | The ratio of mach number between lateral jet and free flow induce intensity degree of jet interaction . it has no obvious difference between two interactions with two types of nozzle exit configuration , rectangle and ellipse . the shock in front of jet results in increase of shock resistance and the jet ejection causes increase of base resistance
研究表明，侧喷流与来流马赫数之比是影响绕流场的重要因素，该值越大则侧喷干扰越强烈，矩形和椭圆形两种侧喷口形状对侧喷流场干扰波系的影响并不明显。 |
| 8. | Abstract : optimum distances between primary nozzle exit and mixing tube inlet , static pressure recovery of the mixing flow in mixing tube 、 total pressure distributions at the exit of mixing tube 、 pumping coefficients and total pressure losses of the exhaust ejector systems with four different types of primary nozzles have been measured in the experiments
文摘:对4种主喷管组成的排气引射系统的引射系数和总压损失、各主喷管出口与混合管进口之间的最佳间距、混合气流在混合管内的静压恢复及混合气流在混合管出口处的总压分布等进行了测量和对比。 |
