Analysis of a porous-inclined slider bearing lubricated with magnetic fluid considering thermal effects with slip velocity

Singh, J. P.; Ahmad, Naseem

doi:10.1590/s1678-58782011000300011

Cited by 16 publications

(14 citation statements)

References 12 publications

(16 reference statements)

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“…Thermal variation theories of nanofluids and experimental conclusions on the thermal properties of nanofluids have been studied by many authors. 19–28…”

Section: Introductionmentioning

confidence: 99%

“…Inspired by the enhanced heat transfer properties of ferro-nanofluids, many authors have investigated the behaviours of ferro-nanofluid flows. Ahmed et al 25 have highlighted the importance of the ferro-nanofluid flow in slider bearings using the Rosensweig model. They have discussed the load-carrying capacity and mean temperature using temperature-dependent viscosity and have explained the importance of the heat transfer rate in bearings.…”

Section: Introductionmentioning

confidence: 99%

“…Most of these studies have demonstrated the strong influence of thermal effects in bearings and have presented many advantages of the use of ferro-nanofluids. 25–27 Ram and Kumar 28 have examined the hematite ferro-nanoparticle suspension-based porous-inclined slider bearing. They have analysed the impact of the squeeze velocity, slip parameter and material constant on the load-carrying capacity, position of pressure, friction, etc.…”

Section: Introductionmentioning

confidence: 99%

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Ferro-nanofluid squeeze film lubrication with heat transfer

Kavarthalai

Vimala

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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A theoretical study of a squeezing ferro-nanofluid flow including thermal effects is carried out with application to bearings and articular cartilages. A representational geometry of the thin layer of a ferro-nanofluid squeezed between a flat rigid disk and a thin porous bed is considered. The flow behaviours and heat transfer in the fluid and porous regions are investigated. The mathematical problem is formulated based on the Neuringer–Rosensweig model for ferro-nanofluids in the fluid region including an external magnetic field, Darcy law for the porous region and Beavers–Joseph slip condition at the fluid–porous interface. The expressions for velocity, fluid film thickness, contact time, fluid flux, streamlines, pathlines, mean temperature and heat transfer rate in the fluid and porous regions are obtained by using a perturbation method. An asymptotic solution for the fluid layer thickness is also presented. The problem is also solved by a numerical method and the results by asymptotic analysis, perturbation and numerical methods are obtained assuming a constant force squeezing state and are compared. It is shown that the results obtained by all the methods agree well with each other. The effects of various parameters such as Darcy number, Beavers–Joseph constant and magnetization parameter on the flow behaviours, contact time, mean temperature and heat transfer rate are investigated. The novel results showing the impact of using ferro-nanofluids in the two applications under consideration are presented. The results under special cases are further compared with the existing results in the literature and are found to agree well.

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“…Thermal variation theories of nanofluids and experimental conclusions on the thermal properties of nanofluids have been studied by many authors. 19–28…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ferro-nanofluid squeeze film lubrication with heat transfer

Kavarthalai

Vimala

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…In 1993 N. M. Bujurke [6] and his associates studied the circular porous slider through computer extended series. Recent developments about slider bearing can be obtained from the articles [7,8].…”

Section: Introductionmentioning

confidence: 99%

Flow of Casson Fluid Through Circular Porous Bearing

Kumar

Pai

2020

CFDL

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The present work is connected with fluid dynamics aspects of circular slider. It is study about flow of Casson fluid through circular porous bearing. In this model Casson fluid is forced through the porous bottom of a circular slider which is moving laterally on a horizontal plane. The governing Navier Stokes equations are derived and reduced to nonlinear ordinary differential equations through transformations. The problem is analysed through Homotopy Perturbation Method (HPM) and Finite Difference Method (FDM). The effective terms in the HPM representing the physical parameters reveal the qualitative features of the flow. The results are presented for the velocity, wall gradients of vertical velocity functions and lateral velocity functions values in its absolute values with cross Reynolds number. The results are validated by two methods and are in good agreement. They show that they are increasing at one wall and decreasing at the other wall. It is clear that the efficiency of porous slider bearing increases in case of the Cason fluid. The model has application in hydrostatic thrust bearings and air cushioned vehicles. Further friction is greatly reduced in the present case. So it has importance in industry and technology.

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“…The graphical results showed that for huge values of aspect ratio, slip had a substantial impact. Some researchers [22,23,24,25,26,27] have also used magnetic fluid as a lubricant in order to aid the Tribological performance of a different sliding interface. [28] dealt with the impact of squeeze film of step bearing with magnetic fluid.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Rough Porous Inclined Slider Bearing Lubricated With a Ferrofluid Considering Slip Velocity

Munshi¹,

Patel²,

Deheri³

2019

IJRAT

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The current study focuses on performance of the ferrofluid, Slider bearing which inclined through the porosity with lubrication based rough surface to examine the impacts of slip velocity. The magnetic fluid flow is directed by the Neuringer and Rosensweig model. The Christensen and Tonder models have been taken to derive the transverse roughness stochastically. The impacts of slip velocity are studied by using the Beavers and Joseph model. While the distribution of pressure measured by cracking from the equation of Reynolds which is stochastic. This is followed by a numerically using Simpson's 1/3 rule of the expression for the dimensionless load carrying capacity to study its correlation with the bearing system. A graphical study demonstrates the efficacy of load on magnetic, roughness and slip parameter. The outcome show, there is a positive correlation among the ability of load as well as left-ward skewed surface. The results were more prominent in the case of negative variance. This study focuses on finding a possible way of increasing load capacity by decreasing the slip parameter and porosity. An appropriate selection of magnetic strength may lead to some compensation for poor effect of porosity, slip and roughness.

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Analysis of a porous-inclined slider bearing lubricated with magnetic fluid considering thermal effects with slip velocity

Cited by 16 publications

References 12 publications

Ferro-nanofluid squeeze film lubrication with heat transfer

Ferro-nanofluid squeeze film lubrication with heat transfer

Flow of Casson Fluid Through Circular Porous Bearing

Analysis of Rough Porous Inclined Slider Bearing Lubricated With a Ferrofluid Considering Slip Velocity

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