Publication detail

Lubricant flow in thin-film elastohydrodynamic contact under extreme conditions

ŠPERKA, P. KŘUPKA, I. HARTL, M.

English title

Lubricant flow in thin-film elastohydrodynamic contact under extreme conditions

Type

WoS Article

Language

en

Original abstract

To further extend knowledge about fluid film friction in elastohydrodynamic contact, it is important to examine how lubricant flows. In this paper, several film thickness results obtained by interferometry technique for different kinds of experiments were analyzed and discussed based on lubricant flow continuity. Results of two steady-state and two transient experiments are presented. Possible speed profiles that can explain observed film thickness distributions were suggested. It is shown that major part of present experiments can be explained by a single speed profile known as a plug flow. This finding is in contradiction to usual linear speed profile predicted by Reynolds equation.

Keywords in English

fluid film friction; speed profile; flow rate continuity; lubricant rheology; plug flow

Released

2016-12-01

Publisher

Tsinghua University Press

ISSN

2223-7690

Journal

Friction

Volume

4

Number

4

Pages from–to

380–390

Pages count

11

BIBTEX


@article{BUT134782,
  author="Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="Lubricant flow in thin-film elastohydrodynamic contact under extreme conditions",
  journal="Friction",
  year="2016",
  volume="4",
  number="4",
  pages="380--390",
  doi="10.1007/s40544-016-0134-6",
  issn="2223-7690",
  url="http://link.springer.com/article/10.1007/s40544-016-0134-6"
}