CFD-FSI analysis of textured journal bearing working with nano lubricant
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College of Engineering / Al- Mususab, Babylon , Iraq
Submission date: 2023-12-14
Final revision date: 2024-03-21
Acceptance date: 2024-05-08
Online publication date: 2024-05-23
Publication date: 2024-05-23
Corresponding author
Mohanad Ramadhan Hameed   

College of Engineering / Al- Mususab, Babylon , Iraq
Diagnostyka 2024;25(2):2024212
This research aims to examine the compound impact of adding rectangular textures to various zones on the surface of the bearing and nanoparticles in the lubricant on the properties of journal bearing. A lubrication models with various texture depths and eccentricity ratios of journal bearing are created and simulated using CFD-FSI method to get static properties like load capacity and frictional force. Aluminum oxide nanoparticles were added in weight ratios ranging from 0.1 to 0.5 %, and the change in viscosity due to these additives in the lubricant was considered. Cavitation and the dependence of viscosity on temperature effects are also considered. The validation results show that the acquired results from the current simulation method agree well with the experimental results in the reference. The outcomes indicated that the highest load capacity and the lowest frictional force are found in the high-pressure region. It was noted that the maximum rise in load capacity was 16.51% without nanoparticles at a texture depth of 0.5 mm and eccentricity ratio of 0.1, and with the adding of 0.5 wt. % of nanoparticles to the lubricant in the same region, the load carrying capacity increased to 40.87 % compared to a bearing without textures.
This research received no external funding.
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