At high speed and hot exhaust flow conditions, a preliminary experimental investigation on the divergent wall cooling of Two Dimensional C-D Nozzle had been conducted. 在高速热喷流条件下,对二元收扩喷管超音段壁面的冷却进行了初步试验研究。
The method of internal combustion with high speed jet nozzle used in the local whole post weld heat treatment of spherical tanks was reviewed. 对球形储罐焊后整体热处理常用的燃油高速喷嘴内燃法进行回顾,并就开始研制的微机自动控制系统做了简介。
The results show that the nozzle flapper valve has wide pressure control performance, good linearity, and high response speed. And theoretical basis is presented to further introduce the GMA nozzle flapper valve into electro-hydraulic servo valve. 结果表明,基于超磁致伸缩转换器喷嘴挡板阀,具有较宽的控制压力特性,良好的线性度,较快的响应速度,为进一步将其应用于两级电液伺服阀提供了设计和试验依据。
Using high speed photograph and laser shadowgraph method, the effect of opening pressure of injection nozzle, environment pressure and injection orifice diameter on spray characteristics of dimethyl ether ( DME) are studied by using a pressure bomb, and are compared with those of diesel. 采用高速摄影和激光阴影法在压力容弹中研究了喷油嘴启喷压力、环境介质的密度、喷孔直径等参数对二甲醚喷雾特性的影响,并与柴油的喷雾特性进行了对比。
Investigation and manufacture of high speed ceramic spray nozzle 陶瓷高速喷砂咀的研制
The first part is theoretical study, which is the emphasis of our work, including numerical simulation of high speed air flow in the nozzle, and the simulation of fiber motion in the air flow of the nozzle. 本文的研究工作覆盖了两大部分:一是对高速气流场及纤维在气流场中的运动进行数值模拟;
This paper presents the distinguish and features for low speed flow scheme and high speed flow scheme of shrink nozzle, providing the formulation of calculating flow characteristic parameters for low speed blowing. 本文介绍了收缩喷嘴的低速吹气与高速吹气流动图案的区别及其特点。给出了计算低速吹气的流动特性参数的计算公式。
The fluid jet polishing system is guide a pre-mixed slurry to the surface with a high speed by the use of a nozzle, and the material is removed by the collision and shear action between abrasive grain and the workpiece. 它是利用由小喷管喷出的混有磨料粒子的高速抛光液作用于工件表面,借助于磨料粒子的高速碰撞剪切作用达成材料去除的目的。