Fluent平台上滑阀流态切换现象仿真研究  

Numerical simulation study on flow switching phenomenon of slide valve based on Fluent

作　　者：蔡霖[1] 黄其涛[1] 刘小初[1] 叶正茂[1] 韩俊伟[1] 孙艳玲 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001 [2]河南平高电气股份有限公司,平顶山467001

出　　处：《现代制造工程》2009年第12期12-15,共4页Modern Manufacturing Engineering

基　　金：科技部基金项目;国家科技支撑计划子课题项目(2006BAF01B12-03)

摘　　要：针对某三级电液伺服阀功率级滑阀，在0-3mm的阀开口量范围内，建立不同阀开口量对应的二维几何模型并进行网格划分，通过Fluent软件仿真得到理想滑阀流量特性曲线，发现该滑阀阀口存在流态切换现象。仿真分析了改变阀杆直径、在阀芯壁面挖槽和阀芯根部倒圆角对流态切换现象的影响，为功率级滑阀的设计提供参考。The two dimensional geometry models and grids of slide valve of three-stage electro-hydranlic servo valve were built separately when its valve port size was 0 - 3mm. Through the numerical simulation, the discharge characteristic of ideal slide valve was got and flow states switching phenomenon was found to be existed. The effects of changing valve stem diameter, slotting at spool wall and rounding at spool root to flow states switching phenomenon were obtained. The results of analysis could offer a gist for the designing spool valves of power stage.

关 键 词：滑阀 流量特性 流态切换 Fluent软件 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]