Publication result detail

Lubricant flow in thin-film elastohydrodynamic contact under extreme conditions

ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Original Title

Lubricant flow in thin-film elastohydrodynamic contact under extreme conditions

English Title

Lubricant flow in thin-film elastohydrodynamic contact under extreme conditions

Type

WoS Article

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.

English 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

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

Key words in English

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

Authors

ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

RIV year

2017

Released

01.12.2016

Publisher

Tsinghua University Press

ISBN

2223-7690

Periodical

Friction

Volume

4

Number

4

State

People's Republic of China

Pages from

380

Pages to

390

Pages count

11

URL

http://link.springer.com/article/10.1007/s40544-016-0134-6

Full text in the Digital Library

http://hdl.handle.net/11012/64749

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"
}

Documents

sperka_friction_2016