Magnetic Fluid-Based Squeeze Film Between Curved Porous Annular Plates Considering the Rotation of Magnetic Particles and Slip Velocity

Patel, Niru C.; Patel, Jignesh P.

doi:10.24874/jsscm.2020.14.02.05

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…with the help of equations ( 3) and ( 4), as given in Shliomis [39]. Equation( 5) takes the following form, as discussed in Bhat [42] and Patel and Patel [43] with u, H = (0, 0, H 0 ) and an axially symmetric flow,…”

Section: Discussionmentioning

confidence: 99%

A comparative study of ferrofluid lubrication on double-layer porous squeeze curved annular plates with slip velocity

Patel

Deheri

2022

Acta Polytech

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This article makes an effort to present a comparative study on the performance of a Shliomis model-based ferrofluid (FF) lubrication of a porous squeeze film in curved annular plates taking slip velocity into account. The modified Darcy’s law has been adopted to find the impact of the doublelayered porosity, while the slip velocity effect has been calculated according to Beavers and Joseph’s slip conditions. The modified Reynolds equation for the double-layered bearing system is solved to compute a dimensionless pressure profile and load-bearing capacity (LBC). The graphical results of the study reveal that the LBC increases in the case of magnetization, volume concentration and upper plate’s curvature parameter while it decreases with other parameters for both the film thickness profile. A comparative study suggests that the exponential film thickness profile is more suitable to enhance LBC for the annular plates lubricated by ferrofluid, including the presence of a slip. The study shows that the slip model performed quite well and there is a potential for improving the performance efficiency. Besides, multiple methods have been presented to enhance the performance of the above mentioned bearing system by selecting various combinations of parameters governing the system.

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Section: Discussionmentioning

confidence: 99%

A comparative study of ferrofluid lubrication on double-layer porous squeeze curved annular plates with slip velocity

Patel

Deheri

2022

Acta Polytech

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“…Using the Beavers and Joseph’s boundary conditions Patel and Patel (2020), ur=0 at z=0 and ur=−1s(∂ur∂z) at z=h, and ηa=η(1+τ), eq. (14) reduces to…”

Section: Mathematical Analysismentioning

confidence: 99%

Squeeze film derivation of the porous curved annular plates with variable magnetic field, Rosensweig’s viscosity and slip velocity in the Shliomis model

Devender,

Ram,

Sharma

2024

MMMS

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PurposeThe present article aims to investigate the squeeze effects on hematite suspension-based curved annular plates with Rosensweig’s viscosity and Kozeny–Carman’s porous structure under the variable strong magnetic field and slip in the Shliomis model. The variable magnetic field is utilised to retain all magnetic elements within the model. The aforementioned mechanism would have the benefit of generating a maximal field at the system’s required active contact zone.Design/methodology/approachThe Kozeny–Carman globular sphere model is used for porous facing. Rosensweig’s extension of Einstein’s viscosity is taken into consideration to enhance the fluid’s viscosity, and Beavers and Joseph’s slip boundary conditions are employed to assess the slip effect.FindingsThe pressure and lifting force under squeezing are computed through modification of the Reynolds equation with the addition of Kozeny–Carman’s model-based porosity, Rosensweig’s viscosity, slip and varying magnetic field. The obtained results for the lifting force are very encouraging and have been compared with Einstein’s viscosity-based model.Originality/valueResearchers so far have carried out problems on lubrication of various sliders considering Einstein’s viscosity only, whereas in our problem, Rosensweig’s viscosity has been taken along with Kozeny–Carman’s porous structure model.

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“…It was established that the positive effect of viscosity variation gets aided considerably by the ferrofluid lubrication. Patel and Patel (2020) discussed the impact of the rotation of Ferro-particles and slip velocity at the boundary of Shliomis model based squeeze porous curved annular plates. It was noticed that the bearing's performance enhanced due to ferrofluid, considering the appropriate values of parameters for slip velocity and porosity.…”

Section: Introductionmentioning

confidence: 99%

Influence of viscosity variation on ferrofluid based long bearing

Patel

Deheri

2022

Rep. Mech. Eng.

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This paper deals with a theoretical analysis on the effect of viscosity variation on a ferrofluid based long bearing. The model of Tipei considering viscosity variation is deployed here. The magnetic fluid flow is governed by Neuringer-Rosensweig model. The pressure distribution is obtained after solving the associated Reynolds type equation, which gives the load carrying capacity. The computed results indicate that the increased load carrying capacity owing to magnetization gets negligible help from the effect of viscosity variation.

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Magnetic Fluid-Based Squeeze Film Between Curved Porous Annular Plates Considering the Rotation of Magnetic Particles and Slip Velocity

Cited by 6 publications

References 24 publications

A comparative study of ferrofluid lubrication on double-layer porous squeeze curved annular plates with slip velocity

A comparative study of ferrofluid lubrication on double-layer porous squeeze curved annular plates with slip velocity

Squeeze film derivation of the porous curved annular plates with variable magnetic field, Rosensweig’s viscosity and slip velocity in the Shliomis model

Influence of viscosity variation on ferrofluid based long bearing

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