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Journal of Porous Media
Facteur d'impact: 1.49 Facteur d'impact sur 5 ans: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v16.i3.10
pages 183-192

NUMERICAL STUDY OF SQUEEZE FILM LUBRICATION BETWEEN POROUS AND ROUGH RECTANGULAR PLATES

Ramesh B. Kudenatti
Department of Mathematics, Bangalore University, Central College Campus, Bangalore-560001, India
N. Murulidhara
Department of Mathematics, Sri Siddhartha Institute of Technology, Tumkur-572 105, India
H.P. Patil
Department of Mathematics, Siddaganga Institute of Technology, Tumkur-572 103, India

RÉSUMÉ

In this paper, we study squeeze film lubrication characteristics between two rectangular plates, of which the lower plate is porous and the upper one has a roughness structure. The fluid in the film region is represented by a viscous, incompressible couple-stress fluid. The governing Reynolds equation, which incorporates the couple-stress fluid, roughness, and porosity of the material, is solved numerically using the multigrid method. Results show that the effects of couple-stress fluid and roughness are more pronounced compared to the Newtonian fluid and smooth case, respectively, whereas the effect of permeability is to decrease the pressure distribution and load capacity.


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