基于CFD方法的钻井液锥阀流场模拟及结构分析  

Flow Field Simulation and Structural Analysis of Hydraulic Cone Control Valve for Drilling Fluids Based-on CFD

作　　者：朱万胜[1] 张作龙[1] 张彦廷[1] 李继志[1] 

机构地区：[1]中国石油大学机电工程学院,山东东营257061

出　　处：《液压气动与密封》2008年第6期24-26,共3页Hydraulics Pneumatics & Seals

摘　　要：本文基于计算流体力学方法,采用幂律流变模型和RNGk-ε湍流模型对钻井液锥阀阀口处的内部流场进行数值仿真计算。通过对流场内流线形状、压力和流速的大小及其分布情况进行分析,着重研究了阀芯半锥角、阀芯结构、阀座倒角等对锥阀流场的影响。研究结果对以钻井液作为介质的液压锥阀的设计和优化具有一定的借鉴意义。Power-law Rheological model and RNG k-e turbulence model are used to simulate the Flow Field in Hydraulic Poppet Valve for drilling fluids, which are based on Computational Fluid Dynamics Approach.The effect of structural forms,angle of poppet, and chamfer of valve seat on the flow field within cone valve is investigated emphatically by analyzing the form of stream line, the data and distribution of pressure and velocity. The conclusion may be applied in the designing and optimizing the hydraulic cone valve for drilling fluids.

关 键 词：幂律流体 湍流 锥阀 数值模拟 

分 类 号：TE927[石油与天然气工程—石油机械设备]