Contrast study on cold - flow mixing effect and combustion efficiency of afterburning chamber of solid rocket ramjet 固冲发动机补燃室冷流掺混效果与燃烧效率对比研究
4.
The numerical simulation of the motor cold flow field and the mixing process of various kinds of gases are performed by piso algorithm 采用piso算法模拟了冷流状态下发动机的内流场和各种气体组分的相互掺混过程。
5.
The experimental results show that adiabatic efficiency has a remarkable improvement in low cold mass flow ratios , adiabatic efficiency can improve by 30 % in the best condition 实验表明，在冷流率小的情况下，通过加湿可以使得绝热效率得到显著的提高，最好可以提高30 。
6.
This paper gives the composition of hot runner system and the comparison with the cold runner systems , the differences of hot runner injection moulds between domestic and abroad , and the development tendency of hot runner systems 摘要介绍了热流道系统的组成和与冷流道的比较，国内外热流道注塑模具的差距及热流道系统的发展方向。
7.
This paper described a cold gas simulation of solid rocket motor with submerged nozzle . a two - dimension model with rectangular channel was designed , which can simulate different flow conditions at three periods after ignition 本文从冷流模拟的角度出发，设计了通道为矩形的含潜入喷管发动机冷流模型，可以模拟发动机工作过程中三个不同时刻的流动状态。
8.
On the basis of cold gas simulation , a numerical simulation of two - phase turbulent flow was performed employing an eulerian - eulerian approach and k - - a . p . turbulent model . the accuracy of numerical simulation was verified and evaluated by the experimental result 在冷流模拟的基础上，对燃烧室尾部的两相湍流流场进行了数值模拟，数值模拟采用双流体模型和k - - a . p .湍流模型。
9.
Results of atomization performance in cold - flow - simulated experiment and burning experiment and temperature distribution are reached , influence of nozzle stucture and working condition with atomization performance and conbustion performance are analyzed 确定了这些喷嘴在冷流模拟条件和常压燃烧条件下的流量特性、雾化特性以及喷雾流火焰的温度场特性，比较分析了不同喷嘴结构形式、不同工况对雾化性能和燃烧性能的影响。
10.
The result of investigation on drags of cavities under combustion condition , with different injection schemes and fuel equivalence ratio , indicates that it is smaller than it ’ s of cold flow , and decreases with increasing fuel equivalence ratio , and could be converted into the 研究发现:凹腔火焰稳定器热试阻力小于冷流阻力,并随着当量比的增加而减小,最终会表现为正推力。综合论文研究成果,提出了多凹腔燃烧室设计技术。
