The Numerical Simulation for Micropolar Fluids Field of Mixing Friction in Mechanical Seal

Journal of Petrochemical Universities ›› 2008, Vol. 21 ›› Issue (2): 63-67.

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The Numerical Simulation for Micropolar Fluids Field of Mixing Friction in Mechanical Seal

DING Xue-xing1, CHENG Xiang-ping1.2，LI Guo-dong1, WANG Xun-jie2，ZHANG Wei-zheng1

(1.College of Petrochemical Engineer, Lanzhou University of Technology, Lanzhou Gansu 730050,P. R. China；

2. Mechanical and Electrical Department, Jiangxi Blue Sky Institute, Nanchang Jiangxi 330098, P. R. China)

Received:2007-10-19 Published:2008-06-20 Online:2017-06-28

机械密封混合摩擦微极流场数值模拟

丁雪兴1, 程香平1,2, 李国栋1, 王训杰2, 张伟政1

(1.兰州理工大学石油化工学院,甘肃兰州730050; 2.江西蓝天学院机电系,江西南昌330098)

作者简介:丁雪兴(1964-),男,江苏苏州市,副教授,在读博士
基金资助:
甘肃省教育技术基金资助项目(0514B-01)。

Abstract

Abstract:

It is quite difficult to solve the problem of mixing friction in mechanical seal has relation to coupling function on more physical quantities between spring deformation and elastic hydrodynamic lubrication. And no available business software can directly work it out, so the C language programming was used to calculate. Allowing for micropolar fluids effect, dynamics and mathematical models on mixing friction in mechanical seal were established, and the problems for the distributions of fluid film pressure in film lubrication under the different micropolar fluids parameters were solved by using finite difference method, then the solutions of pressure and spillage value were obtained. The results show that raising of micropolar fluids parameters such as coupling coefficient and characteristic length makes fluid film pressure increase, and then pressure drops and spillage decreases, which keeps seal reliability.

摘要： 机械密封混合摩擦求解涉及到弹性变形和流体动力润滑之间多物理量的流固耦合作用,计算难度较大,没有现成的商业软件可直接解决这个问题,因此采用C语言编程计算。考虑微极流体效应构建了混合摩擦的力学和数学模型,并利用有限差分法进行数值求解,获得了不同微极参数下内部流场的压力分布及机械密封泄漏量数值。计算结果表明,微极参数耦合数和特征长度的增加将使液膜的压力增大,从而减小内外压差使泄漏量下降,保证了密封的可靠性。

关键词: 机械密封, 微极流体, 混合摩擦, 流固耦合, 数值模拟

DING Xue-xing, CHENG Xiang-ping，LI Guo-dong, WANG Xun-jie，ZHANG Wei-zheng.

The Numerical Simulation for Micropolar Fluids Field of Mixing Friction in Mechanical Seal

[J]. Journal of Petrochemical Universities, 2008, 21(2): 63-67.

丁雪兴, 程香平, 李国栋, 王训杰, 张伟政. 机械密封混合摩擦微极流场数值模拟[J]. 石油化工高等学校学报, 2008, 21(2): 63-67.

The Numerical Simulation for Micropolar Fluids Field of Mixing Friction in Mechanical Seal

机械密封混合摩擦微极流场数值模拟

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