微型齿轮泵内流场的动网格模拟和分析  

Simulation and analysis of flow field inside micro-gear pump with dynamic mesh

作　　者：张锴[1] 翟俊霞[2,3] 陈嘉南[1] 赵云文 

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京210009 [2]南京工程学院国际交流合作处,江苏南京211167 [3]常熟天银机电有限公司,江苏常熟215513

出　　处：《兰州理工大学学报》2011年第1期45-49,共5页Journal of Lanzhou University of Technology

基　　金：江苏省自然科学基金(BK2009573)

摘　　要：采用Fluent软件的动网格技术,结合k-ε模型对外啮合微型齿轮泵的内部流场进行仿真分析,模拟和分析微齿轮中心距和转速对出口平均速度的影响.对内部流场分析结果表明,齿轮中心距影响流量,转速与流量成线性关系,内部流场的稳定时间与齿轮中心距无关,模拟结果与实验数据较为吻合.The flow field inside the micro-gear pump with external gearing was simulated and analyzed with software Fluent with dynamic mesh technology and k-ε model.The influence of center distance and rotation speed on pump average outlet velocity was simulated and analyzed.The results showed that the gear center distance would have influence on outlet flow and there was a linear relationship between pump speed and flow.And the transient time to steady-state flow field was independent of center distance of the gears.The simulation result was consist an well with the experimental data.

关 键 词：齿轮泵 CFD 仿真 动网格 

分 类 号：TH137[机械工程—机械制造及自动化]