A Three Dimensional Thermohydrodynamic Finite Element Scheme for Fluid Film Bearings

Gero, L. R.; Ettles, C. M. McC.

doi:10.1080/10402008808981814

Cited by 15 publications

(5 citation statements)

References 9 publications

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“…The flow is dominated by convection, which often leads to oscillations or ''wiggles'' if the symmetrically weighted Galerkin method is used. Solution to this problem has been extensively analyzed [6,9] but the most effective method appears to be the streamline upwind Petrov-Galerkin method as proposed by Brooks and Hughes [6]. The flow boundary condition on surface S 2 is zero.…”

Section: Governing Equationsmentioning

confidence: 99%

“…Hence the need for streamline upwind Petrov-Galerkin (SUPG). SUPG shows good stability in initial-and boundary-value problems and can easily handle backflow at the inlet [9]. The energy equation is formulated as…”

Section: Theoretical Basis Of the Modelmentioning

confidence: 99%

“…Both finite and infinite slider bearings will be analyzed. Although other workers used three-dimensional models [8][9][10], the emphasis will be on formulating the energy equation in a nondimensional form that can be used to compare data in the literature. Gero and Ettles [9] …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Three-Dimensional Modeling of Thermohydrodynamic Lubrication in Slider Bearings Using Streamline Upwind Petrov-Galerkin Method

Zengeya

Gadala

Segal

2006

Numerical Heat Transfer, Part A: Applications

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A three-dimensional thermohydrodynamic lubrication model which couples the Reynolds and energy equations is developed in the finite-element program Sepran. The model uses the streamline upwind Petrov-Galerkin method. Model results indicate the peak temperature is not on the mid-plane surface. This position shifts toward the mid-plane as the width-to-length ratio is reduced from 10 to 1 as well as when pressure boundary conditions are altered in such a way that the inlet/outlet pressure is higher than the side pressure. The adiabatic temperature profiles of an infinite slider and a square slider are compared. The wider slider shows a higher peak temperature. The side flow plays a major role in determining the value and position of the peak temperature. Model results also indicate peak side flow at a width-to-length ratio of 2.

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Section: Governing Equationsmentioning

confidence: 99%

Section: Theoretical Basis Of the Modelmentioning

confidence: 99%

See 1 more Smart Citation

Three-Dimensional Modeling of Thermohydrodynamic Lubrication in Slider Bearings Using Streamline Upwind Petrov-Galerkin Method

Zengeya

Gadala

Segal

2006

Numerical Heat Transfer, Part A: Applications

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“…But the actual slider bearing con¢guration would require zero/nonzero £ux boundary prescriptions. Gero [12] has attempted the problem, but his study was focused on scheme development. Further he dealt with either constant viscosity/density or linearized viscosity with constant density.…”

Section: Introductionmentioning

confidence: 99%

Streamline Upwind Pertov-Galerkin Finite Element Analysis of Thermal Effects on Load Carrying Capacity in Slider Bearings

Kumar¹,

Rao²,

Sinha³

2000

Numerical Heat Transfer, Part A: Applications

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“…11,12 They took into account the oil heating and variable viscosity (as a function of temperature) through the thickness of the lubricant film. Gero et al 13 performed a three-dimensional (3D) THD finite element scheme for fluid film bearings treating the film and pad as a single continuum and solving their temperature fields simultaneously. Tieu 14,15 applied finite element method (FEM) to analysis of both infinite-width and finite-width thrust bearings, which can tilt circumferentially.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental research of bidirectional thrust bearings used in pump-turbines

Huang

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part J:

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A three-dimensional thermo-elasto-hydro-dynamic model for bidirectional thrust bearings used in pump-turbines taking into account the temperature-viscosity effect as well as thermal-elastic deformations in the pad and runner surface was set up. The finite difference method was employed to solve the thermo-hydro-dynamic model, and the thermal-elastic deformations in the pad and runner were obtained by the finite element software ANSYS11.0. The data transfer between the thermo-hydro-dynamic model and ANSYS11.0 was carried out automatically by an interface program. Laboratory test was performed on the Harbin Electric Machinery 3000 ton thrust bearing test rig. A detailed comparison between the experimental results and numerical predictions showed quite good overall agreement on the oil film thickness, pressure and temperature, which provided an evidence of validation of the three-dimensional thermo-elasto-hydrodynamic model coupled with finite difference method and finite element method developed in this article.

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A Three Dimensional Thermohydrodynamic Finite Element Scheme for Fluid Film Bearings

Cited by 15 publications

References 9 publications

Three-Dimensional Modeling of Thermohydrodynamic Lubrication in Slider Bearings Using Streamline Upwind Petrov-Galerkin Method

Three-Dimensional Modeling of Thermohydrodynamic Lubrication in Slider Bearings Using Streamline Upwind Petrov-Galerkin Method

Streamline Upwind Pertov-Galerkin Finite Element Analysis of Thermal Effects on Load Carrying Capacity in Slider Bearings

Numerical and experimental research of bidirectional thrust bearings used in pump-turbines

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