三组元比例控制器内流场的数值模拟  

Numerical simulation of flow fields for tri-proportion controller

作　　者：郭芳[1] 党建军[1] 白杰[1] 

机构地区：[1]西北工业大学航海学院,西安710072

出　　处：《水动力学研究与进展（A辑）》2012年第1期33-38,共6页Chinese Journal of Hydrodynamics

摘　　要：运用计算流体力学软件CFX对三组元比例控制器内的三维粘性流场进行数值模拟,计算在不同注入流量、不同入口尺寸及是否有混流段等多种情况下三组元比例控制器的内泄漏情况,并对流场进行分析。研究了内泄漏量与注入流量、入口尺寸及有无混流之间的关系,得出了这几种情况对内泄漏的影响规律,为三组元比例控制器的比例控制精度的优化提供必要的参考。Using the computational fluid dynamics analysis software CFX,the three dimensional viscous flow field in tri-proportion controller was studied through numerical simulation.The internal leakage of tri-proportion controller was calculated under the conditions of different flow rates,sizes of the entrance and flow mixture.The relationship between the internal leakage and the flow rate,the size of the entrance,the flow situation whether the mixture existed was studied,and some influencing laws were obtained.The paper provides basis for the control accuracy optimisation of the tri-proportion controller.

关 键 词：三组元比例控制器 内泄漏量 比例分析 CFX 数值模拟 

分 类 号：TJ360.32[兵器科学与技术—火炮、自动武器与弹药工程]