Detail publikace

Numerical analysis and simulations of the magnetic field and hydrophobicity effect on the journal bearing dynamics

FIALOVÁ, S. POCHYLÝ, F. MALENOVSKÝ, E.

Anglický název

Numerical analysis and simulations of the magnetic field and hydrophobicity effect on the journal bearing dynamics

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

The article contains mathematical models of Reynolds equation with the effects of hydrophobicity of surface and magnetic field. The first section provides a new mathematical model of the solution of the generalized Reynolds equation and its application for a hydrophilic surface. It also derives a new boundary condition for the contact of a flowing liquid with a hydrophobic surface. This wettability condition is defined in dependence on the adhesion coefficient k. The second part presents mathematical models of Reynolds equation including the effect of hydrophobia and magnetic field. For all problems, the solutions are shown and the definitions of the stiffness and damping matrices of the liquid layer are outlined. From the results, it can be deduced that hydrophobic surface significantly affects the velocity profile of the liquid. It leads to a higher effect of the Lorentz force and thus of the magnetic field in comparison with a hydrophilic surface of the bearing lining.

Anglický abstrakt

The article contains mathematical models of Reynolds equation with the effects of hydrophobicity of surface and magnetic field. The first section provides a new mathematical model of the solution of the generalized Reynolds equation and its application for a hydrophilic surface. It also derives a new boundary condition for the contact of a flowing liquid with a hydrophobic surface. This wettability condition is defined in dependence on the adhesion coefficient k. The second part presents mathematical models of Reynolds equation including the effect of hydrophobia and magnetic field. For all problems, the solutions are shown and the definitions of the stiffness and damping matrices of the liquid layer are outlined. From the results, it can be deduced that hydrophobic surface significantly affects the velocity profile of the liquid. It leads to a higher effect of the Lorentz force and thus of the magnetic field in comparison with a hydrophilic surface of the bearing lining.

Klíčová slova anglicky

magnetic field, hydrophobicity, dynamics, analysis

Vydáno

01.05.2017

Nakladatel

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

ISSN

1350-6501

Ročník

231

Číslo

5

Strany od–do

561–571

Počet stran

10

BIBTEX


@article{BUT138740,
  author="Simona {Fialová} and František {Pochylý} and Eduard {Malenovský},
  title="Numerical analysis and simulations of the magnetic field and hydrophobicity effect on the journal bearing dynamics",
  year="2017",
  volume="231",
  number="5",
  month="May",
  pages="561--571",
  publisher="Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology",
  issn="1350-6501"
}