Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad Bearing
This study investigates the impact of the slip boundary condition at the Fluid/Solid interface on the hydrodynamic behavior of a pad bearing through a comprehensive numerical simulation. A modified Reynolds equation, derived from the Navier-Stokes equations and incorporating the Navier-type boundary...
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| Format: | Article |
| Language: | English |
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Shahid Chamran University of Ahvaz
2025-07-01
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| Series: | Journal of Applied and Computational Mechanics |
| Subjects: | |
| Online Access: | https://jacm.scu.ac.ir/article_19429_702fdf3d37fe7975dbe01d0817cb43f1.pdf |
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| author | Ihssane Messoude Samir Aghzer |
| author_facet | Ihssane Messoude Samir Aghzer |
| author_sort | Ihssane Messoude |
| collection | DOAJ |
| description | This study investigates the impact of the slip boundary condition at the Fluid/Solid interface on the hydrodynamic behavior of a pad bearing through a comprehensive numerical simulation. A modified Reynolds equation, derived from the Navier-Stokes equations and incorporating the Navier-type boundary conditions on the velocity field at wall contacts, was developed to model the system. The discretization of this equation was performed using the centered finite difference method where the resulting linear system of equations was numerically processed with the Gauss-Seidel iterative method enhanced by over-relaxation. The simulation reveals that introducing the slip condition allows the pad bearing to support loads even in configurations with divergent or parallel surfaces, a capability absent in conventional pad bearings. Specifically, for a convergence ratio of (1.5) and a slip zone covering (55%) of the upper surface, the pad bearing achieves a load capacity increase of (33.5%) compared to the conventional type. Furthermore, this non-conventional pad bearing reduces friction forces by up to (30%), enhancing performance while minimizing shear power dissipation. These numerical findings suggest that incorporating the slip boundary condition can significantly enhance both load capacity and efficiency in pad bearing applications. |
| format | Article |
| id | doaj-art-7bc9ef12c3ff4cafb85a74afdbacd3b9 |
| institution | OA Journals |
| issn | 2383-4536 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | Journal of Applied and Computational Mechanics |
| spelling | doaj-art-7bc9ef12c3ff4cafb85a74afdbacd3b92025-08-20T02:13:24ZengShahid Chamran University of AhvazJournal of Applied and Computational Mechanics2383-45362025-07-0111375476910.22055/jacm.2024.47772.478819429Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad BearingIhssane Messoude0Samir Aghzer1Laboratory of Mechanics, Engineering and Innovation, National Higher School of Electricity and Mechanics, Hassan II University of Casablanca, MoroccoLaboratory of Mechanics, Engineering and Innovation, National Higher School of Electricity and Mechanics, Hassan II University of Casablanca, MoroccoThis study investigates the impact of the slip boundary condition at the Fluid/Solid interface on the hydrodynamic behavior of a pad bearing through a comprehensive numerical simulation. A modified Reynolds equation, derived from the Navier-Stokes equations and incorporating the Navier-type boundary conditions on the velocity field at wall contacts, was developed to model the system. The discretization of this equation was performed using the centered finite difference method where the resulting linear system of equations was numerically processed with the Gauss-Seidel iterative method enhanced by over-relaxation. The simulation reveals that introducing the slip condition allows the pad bearing to support loads even in configurations with divergent or parallel surfaces, a capability absent in conventional pad bearings. Specifically, for a convergence ratio of (1.5) and a slip zone covering (55%) of the upper surface, the pad bearing achieves a load capacity increase of (33.5%) compared to the conventional type. Furthermore, this non-conventional pad bearing reduces friction forces by up to (30%), enhancing performance while minimizing shear power dissipation. These numerical findings suggest that incorporating the slip boundary condition can significantly enhance both load capacity and efficiency in pad bearing applications.https://jacm.scu.ac.ir/article_19429_702fdf3d37fe7975dbe01d0817cb43f1.pdfhydrodynamic lubricationpad bearingnavier slip boundary conditionreynolds equationslip coefficientcritical shear stress |
| spellingShingle | Ihssane Messoude Samir Aghzer Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad Bearing Journal of Applied and Computational Mechanics hydrodynamic lubrication pad bearing navier slip boundary condition reynolds equation slip coefficient critical shear stress |
| title | Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad Bearing |
| title_full | Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad Bearing |
| title_fullStr | Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad Bearing |
| title_full_unstemmed | Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad Bearing |
| title_short | Numerical Study of the Effects of the Navier Slip Boundary Condition on the Hydrodynamic Performances of a Newtonian Fluid-lubricated Pad Bearing |
| title_sort | numerical study of the effects of the navier slip boundary condition on the hydrodynamic performances of a newtonian fluid lubricated pad bearing |
| topic | hydrodynamic lubrication pad bearing navier slip boundary condition reynolds equation slip coefficient critical shear stress |
| url | https://jacm.scu.ac.ir/article_19429_702fdf3d37fe7975dbe01d0817cb43f1.pdf |
| work_keys_str_mv | AT ihssanemessoude numericalstudyoftheeffectsofthenavierslipboundaryconditiononthehydrodynamicperformancesofanewtonianfluidlubricatedpadbearing AT samiraghzer numericalstudyoftheeffectsofthenavierslipboundaryconditiononthehydrodynamicperformancesofanewtonianfluidlubricatedpadbearing |