气液联合激振用于液压系统管路除污技术的研究  

Decontamination Technology Research on Hydraulic Pipes Based on Gas-Liquid United Excitation

作　　者：张慧贤[1] 苗灵霞[1] 

机构地区：[1]洛阳理工学院机械工程学院,河南洛阳471023

出　　处：《洛阳理工学院学报（自然科学版）》2015年第4期42-45,共4页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：国家河南人才培养联合基金资助项目(U1404513)

摘　　要：为研究气液联合激振下液压系统管路除污的可行性,在液压激振系统的基础上,构建了气液联合激振系统,试验分析表明通过波动发生器产生的气脉冲与液压油混合后可产生脉动的气液联合振荡流。采用欧拉-欧拉双流体模型,通过Fluent软件将气液两相流定义为Mixture模型,利用SIMPLE算法对双流体控制方程组进行了迭代求解。数值模拟表明,两相流混合后的脉动特性对液压系统管道污染物的剥离具有可预见的技术效果,从而说明了气液联合激振的可控性与可行性。To study the feasibility of hydraulic pipe decontamination by a gas-liquid united technology,a gas-liquid united excitation system is developed based on the hydraulic excitation system. The experiment results show that a gas-liquid united oscillatory flow can be produced by mixing the gas pulse from a pulse generator and the hydraulic oil. Then,Euler-Euler two-fluid model has been adopted and the gas-liquid two-phase flow model is defined as Mixture Model by Fluent software. Meanwhile,by SIMPLE algorithm,the twofluid control equations are solved by iterative numerical method. The simulation results show that the pulsation characteristics of twophase flow have predictable decontamination effects on inner hydraulic piping pollutants,indicating that the controllability and the feasibility of the gas-liquid united excitation system.

关 键 词：液压激振 气液联合 波动发生器 双流体模型 

分 类 号：TH17[机械工程—机械制造及自动化]