CFD analysis of thin film lubricated journal bearing
The three dimensional CFD analysis were investigated regarding the performance characteristics of a thin film lubricated journal bearing. In the existing literature, several numerical analyses had been reported. Most of these analyses used two dimensional Reynolds equations to find the pressure dist...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/4767/ http://eprints.uthm.edu.my/4767/1/CFD_analysis_of_thin_film.pdf |
| Summary: | The three dimensional CFD analysis were investigated regarding the performance characteristics of a thin film lubricated journal bearing.
In the existing literature, several numerical analyses had been reported. Most of these analyses used two dimensional Reynolds equations
to find the pressure distribution in the lubricant flow by neglecting the pressure variation across the film thickness. Besides that, most
researchers only consider laminar flow. In this paper, three turbulent modeis which are the Standard k-E model, Realizable k-E model and
Reynolds Stress Model WM) had been used to simulate the characteristics of a plain journal bearing. Three dimensional models had
been simulated using ANSYS Fluent s o h e package to accurately predict the performance of the three turbulent models on the journal
bearing analysis. Design parameter like static pressure, wall shear stress and dimensionless load carrying capacity were considered and
transient analysis was carried out for the analysis with different L/D ratio of 0.25, 0.5, 1.0, 1.5 and 2.0. The results showed that for the
cases of thin film lubricated journal bearing, the turbulent models did not give any significant to the simulation results. However for the
case of complex geometry, another simulation needs to be conduct to determine an effect of the different turbulent models in the
simulation ofthe lubricant in bearing system. |
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