SwePub
Sök i LIBRIS databas

  Extended search

WFRF:(Li Jinxia)
 

Search: WFRF:(Li Jinxia) > Measurements of gre...

Measurements of grease flow in channels with restrictions using μPIV

Li, Jinxia (author)
Luleå tekniska universitet,Maskinelement
Westerberg, Lars-Göran (author)
Luleå tekniska universitet,Strömningslära och experimentell mekanik
Green, Torbjörn (author)
show more...
Lundström, Staffan (author)
Lugt, Piet (author)
Baart, Pieter (author)
show less...
 (creator_code:org_t)
Luleå : Luleå tekniska universitet, 2010
2010
English.
In: 14th Nordic Symposium on Tribology. - Luleå : Luleå tekniska universitet. - 9789174391244
  • Conference paper (peer-reviewed)
Abstract Subject headings
Close  
  • Grease is commonly used to lubricate various machine components such as rolling element bearings, open gears etc. Better understanding of the flow properties of grease will contribute to understanding the lubrication mechanism in bearings and flow in lubrication systems. In an earlier paper Micro Particle Image Velocimetry (μPIV) techniques were used to study the flow in a rectangular channel. The present paper is an extension of this work where restrictions were applied in such a channel, which creates a much more complex velocity field. The grease is seeded with fluorescent particles, which are illuminated by a double-pulsed laser. The test geometries that are used in this study are a channel with one flat restriction and one with two flow restrictions in a similar channel. The stationary grease mass-flow and the two dimensional velocity fields have been monitored for different pressure drops. For the channel with one flat restriction, the flow was measured to be symmetric at the inlet and outlet, and the distance for the flow to fully develop is comparable with the height of the channel; Slow motion was followed near the step corner at the inlet. For the channel with two flow restrictions, the vector profiles show that the maximum velocity appears at the restrictions; In-between the two restrictions, a part of the grease is not moving. This particularly applies to cases with low-pressure drop and where high consistency grease was used.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Tribologi (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Tribology (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)

Keyword

Maskinelement
Machine Elements
Strömningslära
Fluid Mechanics

Publication and Content Type

ref (subject category)
kon (subject category)

Find in a library

To the university's database

Search outside SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view