Elastohydrodynamic analysis of a journal bearing with different grade oils considering thermal and cavitation effects using CFD-FSI
Ali Ridha 4,5
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Department of Mechanical Power Engineering, Al-Amarah University College, Maysan, Iraq
College of Engineering, Department of Mechanical Engineering, University of Babylon, Babylon, Iraq
Department of Petroleum Engineering, Al-Amarah University College, Maysan, Iraq
Medical Instrumentation Techniques Engineering, Alhussain University College, Karbala, 56001, Iraq
Branch of Physiology and Medical Physics, College of Medicine, University of Al-Ameed, Karbala, 56001, Iraq
Submission date: 2023-01-03
Final revision date: 2023-03-08
Acceptance date: 2023-05-12
Online publication date: 2023-05-28
Publication date: 2023-05-28
Corresponding author
Zainab Kadhim   

University College of Amara
Diagnostyka 2023;24(2):2023213
This paper investigates a three-dimensional CFD analysis of hydrodynamic journal bearing performance for two different available types of lubricants, SEA 10W50 and SEA 15W40, considering thermal, elastic deformation, and cavitation effects. 3-dimensional CFD model founded on continuity, momentum, energy, in addition elasticity equations has been implemented. The analysis is performed for a bearing with different journal speeds (1000-3000rpm) and eccentricity ratios (0.1-0.9). The cavitation effect was considered using the model of Zwart–Gerber–Balamri multiphase flow model. The bearing material elastic deformation was considered by implementing the two-way FSI technique through ANSYS-FLUENT 2019 R2. A comparative study of the oil film temperature, thermal pressure, also the load capacity by the bearing has been performed. By comparing the current work's oil film temperature results with those obtained by Ferron et al (1983), with a maximum deviation between the results not exceeding 3 percent, the mathematical model was validated. The findings demonstrate that, once the cavitation consequence is taken into account, the lubricant film pressure decreases. Furthermore, at what time the bearing rotates at greater eccentricity ratios and rotational speeds, more deformation material of the bearing is seen. The current research may help in predicting the bearing performance parameters in real-world situations
Nour AM. An experimental investigation of hydrodynamic journal bearing with different oil grades. Port-Said Engineering Research Journal 2019; 23(2):46-54. http://dx.doi.org/10.21608/pse....
Srinivas, Yunnus M, Munshi SM, Hussain IH. Performance evaluation of hydrodynamic journal bearing using gearbox and engine oil (SAE90 and SAE20w50) by experimental and theoretical methods. International Journal of Mechanical Engineering and Information Technology 2015; 3(11): 1573-1583.‏ http://dx.doi.org/10.18535/ijm....
Baskar S, Sriram G. Tribological behavior of journal bearing material under different lubricants. Tribology in Industry 2014; 36(2): 127-133.
Lorenz N, Offner G, Knaus O. Thermal analysis of hydrodynamic lubricated journal bearings in internal combustion engines. Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 2017;231(3):406-419.‏ https://doi.org/10.1177/146441....
Chauhan A, Sehgal R, Sharma RK. Thermohydrodynamic analysis of elliptical journal bearing with different grade oils. Tribology International 2010;43:1970–1977. https://doi.org/10.1016/j.trib....
Williamson BP, Walters K, Bates TW, Coy RC, Milton AL. The viscoelastic properties of multigrade oils and their effect on journal-bearing characteristics. Journal of Non-Newtonian Fluid Mechanics 1997; 73(1-2): 115-126.‏ https://doi.org/10.1016/S0377-....
Rasep Z, Yazid MNAWM, Samion S. A study of cavitation effect in a journal bearing using CFD: A case study of engine oil, palm oil and water. Jurnal Tribologi 2021; 28: 48-62.
Muchammad, Tauviqirrahman M, Soetopo HSS, Jamari. Mechanical and thermal deformations effects on plain journal bearing with isoviscous boundary condition based on CFD and FSI methods. Jurnal Tribologi 2021; 28: 63-81.
Liu H, Xu H, Ellison PJ, Jin Z. Application of computational fluid dynamics and fluid–structure interaction method to the lubrication study of a rotor–bearing system. Tribology Letters 2010; 38(3): 325-336.‏ https://doi.org/10.1007/s11249....
Singla A, Kumar A, Bala S, Singh P, Chauhan A. Thermo-hydrodynamic analysis on temperature profile of circular journal bearing using computational fluid dynamics. 2014 Recent Advances in Engineering and Computational Sciences (RAECS). IEEE 2014; 1-6. https://doi.org/10.1109/RAECS.....
‏Chen Y, Sun Y, He Q, Feng J. Elastohydrodynamic behavior analysis of journal bearing using fluid–structure interaction considering cavitation. Arabian Journal for Science and Engineering 2019; 44(2): 1305-1320.‏ https://doi.org/10.1007/s13369....
Chauhan A. Circular bearing performance parameters with isothermal and thermo-hydrodynamic approach using computational fluid dynamics. International Journal of Research in Advent Technology 2014; 2(7): 46-52.‏.
Versteeg HK, Malalasekera W. An introduction to computational fluid dynamics: the finite volume method. Pearson education 2007.‏.
Zwart PJ, Gerber AG, Belamri T. A two-phase flow model for predicting cavitation dynamics. Fifth international conference on multiphase flow 2004; 152.
Gertzos KP, Nikolakopoulos PG, Papadopoulos CA. CFD analysis of journal bearing hydrodynamic lubrication by Bingham lubricant. Tribology international 2008;41(12):1190-1204.‏ https://doi.org/10.1016/j.trib....
Ferron J, Frene J, Boncompain R. A study of the thermohydrodynamic performance of a plain journal bearing comparison between theory and experiments. Journal of Lubrication Technology 1983; 105(3): 422-428. https://doi.org/10.1115/1.3254....
Dhande DY, Pande DW. A two-way FSI analysis of multiphase flow in hydrodynamic journal bearing with cavitation. Journal of the Brazilian Society of Mechanical Sciences and Engineering 2017; 39(9): 3399-3412.‏ https://doi.org/10.1007/s40430....
Abass BA, Ahmed SY, Kadhim ZH. Thermoelasto-hydrodynamic analysis of nano-lubricated journal bearings using computational fluid dynamics with two-way fluid–structure interaction considering cavitation. Arabian Journal for Science and Engineering 2022;48:2939-2950.‏ https://doi.org/10.1007/s13369....