Flow field distribution of liquid film of water lubricated bearing-rotor coupling systems

7th International Conference on Pumps and Fans

机械制造;工业技术

Hu, Q.L.^1 ; Hu, J.N.^1 ; Ye, X.Y.^1 ; Zhang, D.S.^1 ; Zheng, J.B.^1

National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu

212013, China^1

关键词: Automatic calculations;    Differential pressures;    Flow field distribution;    High pressure pumps;    Lubrication state;    Secondary development;    Starting transient;    Water lubricated bearings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/129/1/012056/pdf
DOI  :  10.1088/1757-899X/129/1/012056

学科分类：工业工程学

来源: IOP

【 摘 要 】

According to the desalination high-pressure pump water lubricated bearing-rotor coupling systems flow field distribution of liquid film in the starting transient process and its power transmission mechanism can lay the foundation of further exploring and judging lubrication state at the boot process. By using the computational fluid dynamics Fluent secondary development platform and calling the relevant DEFINE macro function to achieve the translation and rotation movement of the journal, we will use the dynamic grid technique to realize the automatic calculation and grid update of water lubricated bearings 3d unsteady liquid film flow field, and finally we will dispose the results of numerical simulation and get the pressure. When the eccentricity is large, film thickness was negatively correlated with the pressure, and positive with the velocity. Differential pressure was negatively correlated with velocity. When the eccentricity is small, film thickness is no significant relationship with differential pressure and velocity. Differential pressure has little difference with velocity.