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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v40.i5.70
pages 446-454

Mathematical Analysis of Newly Designed Ferrofluid Lubricated Double Porous Layered Axially Undefined Journal Bearing with Anisotropic Permeability, Slip Velocity and Squeeze Velocity

Rajesh C. Shah
Department of Applied Mathematics, Faculty of Technology and Engineering, The M. S. University of Baroda Vadodara - 390 001, Gujarat State, India
Dilip B. Patel
Department of Mathematics, Sankalchand Patel College of Engineering Visnagar - 384 315, Gujarat State, India

SINOPSIS

The aim of this paper is to analyze theoretically the performance of newly designed double porous layered axially undefined journal bearing lubricated with ferrofluid considering combined effects of anisotropic permeability of the double layered porous facing, slip velocity at the interface of the porous matrix and film region, and squeeze velocity. Ferrofluid [1] is used because it generates body force µ0 (M · ∇)H in the presence of magnetic field H; µ0, M are free space permeability and magnetization vector respectively. Porous layer is because of having self lubricating property of the bearing. Expressions are obtained for dimensionless pressure and load carrying capacity for this newly designed journal bearing. The values of dimensionless load capacity are computed using ferrofluid as lubricant and compared it with the values which are obtained using conventional lubricant (that is, without using ferrofluid). From the results, we say that with using ferrofluid as lubricant, the dimensionless load capacity increase up to 206.86 %. Thus, with the use of ferrofluid as lubricant, it is found that the bearing performance is much better than that of a conventionally lubricated bearing.


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