Stagnation Point Offset of Two Asymmetric Nozzle Opposed Jets with Large Nozzle Separation Distance 大间距两不对称喷嘴对置撞击流驻点偏移规律
Algorithm for the All-Time Apparent Resistivity of LOTEM Method Stagnation Point Offset of Two Asymmetric Nozzle Opposed Jets with Large Nozzle Separation Distance 均匀半空间长偏移距TEM法全区视电阻率的数值计算方法大间距两不对称喷嘴对置撞击流驻点偏移规律
Several flow simulation conditions were applied to study the factors of chamber pressure and nozzle contour, which might affect the flow separation. 首先,利用商用CFD软件进行做数值计算,计算了多种工况,分析了燃烧室压强、喷管型面对分离流动的影响;
By reducing nozzle width, separation efficiency can be improved. 减小喷嘴宽度,可以减弱颗粒向外围扩散的程度,提高分离效率。
The area ratio of the nozzle has little influence on separation for the same divergent section. 对于相同的喷管扩张段型面,喷管面积比对分离位置的影响小;
The affect of flow separation on the nozzle is investigated and the macroscopical factor that leads to flow separation is also analyzed. 研究了喷管流动分离现象和流动分离对喷管性能的影响,以及导致分离流动的宏观因素。
The separation distance between the nozzle and the resonance tube and the feed pressure of the driving gas were the main considerations. The validity of N-S equations, the distribution of flow parameters and aerodynamic force and the relation between axial force and separation distance have been analyzed. 实验中主要考虑喷嘴与谐振管间的分离距离以及供气压力的变化。分析了流场参数分布、气动力分布特性及轴向力随分离距离变化情况。
This paper analyses reason for flame swinging in high-altitude nozzle with the ratio of large area tested under the ground atmosphere, and describes the mechanism of unsymmetrical separation. 本文分析了高空大面积比喷管在地面试验时喷管内出现火焰偏摆的原因,叙述了喷管内气流不对称分离的机理。
By increasing the length of Laval nozzle, an approach was presented to obtain higher particle velocity necessary for gas-solid separation in dusty gas of high temperature and high pressure. 提出了用增加缩放喷管长度的方法,使含尘高温高压气体中的灰尘颗粒获得实现气固两相分离所必需的更高动量的途径。
Based on one dimension flow theory and Lagrange method, the correlation of speeding rate of particles under gas flow drag with the size of particles and the length of Laval nozzle used for the gas and solid two-phase separation test apparatus was studied. 采用一元流动理论和拉格朗日方法,研究了用于气、固两相分离试验装置的缩放喷管内,被气流拖曳的颗粒加速率与颗粒大小和缩放喷管长度的关系。
Research on inverse seeking designing method for suction nozzle of paper separation mechanism 分纸吸嘴机构反求设计方法