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A new method to visualize grease flow in a double restriction seal using microparticle image velocimetry
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
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2011 (English)In: Tribology Transactions, ISSN 1040-2004, E-ISSN 1547-397X, Vol. 54, p. 784-792Article in journal (Refereed) Published
Abstract [en]

A new method to visualize and quantify grease flow in between two sealing lips or, in general, a double restriction seal is presented. Two setups were designed to mimic different types of seals; that is, a radial and an axial shaft seal. The flow of the grease inside and in between the sealing restrictions was measured using microparticle image velocimetry. The results show that grease flow due to a pressure difference mainly takes place close to the rotating shaft surface with an exponentially decaying velocity profile in the radial direction. Consequently, contaminants may be captured in the stationary grease at the outer radius, which explains the sealing function of the grease.

Place, publisher, year, edition, pages
2011. Vol. 54, p. 784-792
Keywords [en]
Engineering mechanics - Fluid mechanics
Keywords [sv]
Teknisk mekanik - Strömningsmekanik
National Category
Fluid Mechanics and Acoustics Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Fluid Mechanics; Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-13038DOI: 10.1080/10402004.2011.604759ISI: 000300173100012Scopus ID: 2-s2.0-80053116917Local ID: c3320290-08f1-11e0-b767-000ea68e967bOAI: oai:DiVA.org:ltu-13038DiVA, id: diva2:985989
Note
Validerad; 2011; 20101216 (torgre)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Green, TorbjörnBaart, PieterWesterberg, Lars-GöranLundström, StaffanHöglund, ErikLugt, PietLi, Jinxia

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Green, TorbjörnBaart, PieterWesterberg, Lars-GöranLundström, StaffanHöglund, ErikLugt, PietLi, Jinxia
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Fluid and Experimental MechanicsMachine Elements
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Tribology Transactions
Fluid Mechanics and AcousticsTribology (Interacting Surfaces including Friction, Lubrication and Wear)

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