Publication detail

Fluid flow measurements of 5P4E by particle tracking velocimetry

DOČKAL, K. ŠPERKA, P. KŘUPKA, I. HARTL, M.

Original Title

Fluid flow measurements of 5P4E by particle tracking velocimetry

Type

conference paper

Language

English

Original Abstract

Lubricant flow in an elastohydrodynamic contact is investigated by new methodology based on particle tracking velocimetry. Measurement method provides positions of silver nanoparticles dissolved in the lubricant through several images captured by high speed camera. These are connected, in places of high probability of correct detection of identical particle on multiple images. Connected positions are linearly fitted to get average speed and after that statistically processed to obtain velocity profile. This method was applied on 5P4E base fluid, characterized by high viscosity and pressure sensitivity. Experimental results provide evidence about slide to roll ratio influence on the velocity profiles under piezoviscouse conditions. At low slide to roll ratios the profile shape match plug flow model with highly viscous core and slip on the solid-liquid interfaces. As the slide to roll ratio increases, corresponding velocity profile curvature is reduced.

Keywords

Elastohydrodynamic Lubrication; Rheology; Fluid Flow; Particle Tracking Velocimetry

Authors

DOČKAL, K.; ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Released

18. 5. 2017

Publisher

Aakdemie věd ČR, Ústav termomechaniky

Location

Česká republika

ISBN

978-80-214-5497-2

Book

ENGINEERING MECHANICS 2017

Pages from

274

Pages to

277

Pages count

4

URL

http://www.engmech.cz/im/doc/EM2017_proceedings_all.pdf

BibTex

@inproceedings{BUT141740,
  author="Kryštof {Dočkal} and Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="Fluid flow measurements of 5P4E by particle tracking velocimetry",
  booktitle="ENGINEERING MECHANICS 2017",
  year="2017",
  pages="274--277",
  publisher="Aakdemie věd ČR, Ústav termomechaniky",
  address="Česká republika",
  isbn="978-80-214-5497-2",
  url="http://www.engmech.cz/im/doc/EM2017_proceedings_all.pdf"
}