摘要
应用泵数值模拟中常用的速度-压力耦合算法、进出口边界条件、收敛精度以及湍流模型,采用Fluent软件对4台不同比转数的中开式输油泵在设计工况下的内部流动进行了叶轮、蜗壳耦合数值计算。基于数值模拟结果,对中开式输油泵数值计算中的关键因素进行了对比性研究。研究表明,计算中湍流模型为标准k-ε模型,收敛精度取10-4,速度-压力耦合算法选用SIMPLE算法,进、出口边界条件选用速度进口、自由出流的边界条件在计算中可获得相对较好的计算结果,且计算容易收敛。
Using the commonly used methods o{ numerical simulation including the velocity and pressure coupled algorithm, inlet and outlet boundary condition, convergence precision as well as turbulence model, an impeller and volute coupled numerical simulation of internal flow in 4 different specific speed horizontal split-case oil transport pumps at the design point was carried out by Fluent. Based on the numerical simulation results, a contrast study was undertaken to investigate the key factors of numerical simulation of horizontal split-case oil transport pump. The research shows that the good simulation results was quickly obtained when the simulation model is set as follows： the turbulent model is standard κ-ε model, the convergence precision is 10.4 , the velocity and pressure coupled algorithm is SIMPLEC algorithm as well as the inlet and outlet boundary is velocity inlet and free outflow.
出处
《石油化工设备》
CAS
2015年第6期1-6,共6页
Petro-Chemical Equipment
基金
国家自然科学基金(51309119)
浙江省重大科技专项重大工业项目(2014C01004-1)
江苏高校优势学科建设工程项目
江苏大学高级人才科研启动基金(12JDG082)
过程装备与控制工程四川省高校重点实验室开放基金资助项目(GK201403)
关键词
中开式输油泵
流动
数值计算
湍流模型
速度压力耦合算法
horizontal split-case oil transport pump
flow
numerical simulation
turbulence model
velocity and pressure coupled algorithm
