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Numerical simulations of lubricating grease flow in a rectangular channel with- and without restrictions
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
Number of Authors: 4
2017 (English)In: Tribology Transactions, ISSN 1040-2004, E-ISSN 1547-397XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

This paper presents numerical simulations of the laminar flow of lubricating greases in a channel with rectangular cross section. Three greases with different consistencies (NLGI grades 00, 1 and 2 respectively) have been considered in three different configurations comprised by a rectangular channel without restrictions, one rectangular step restriction, and one double lip restriction. The driving pressure drop over the channel spans from 30 kPa to 250 kPa. The grease rheology is described by the Herschel-Bulkley rheology model, and both the numerical code and rheology model have been validated with analytical solutions and flow measurements using micro Particle Image Velocimetry.

Place, publisher, year, edition, pages
2017.
National Category
Signal Processing Tribology
Research subject
Signal Processing; Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-61479DOI: 10.1080/10402004.2017.1285090OAI: oai:DiVA.org:ltu-61479DiVA: diva2:1066114
Available from: 2017-01-17 Created: 2017-01-17 Last updated: 2017-01-30

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Sarkar, ChiranjitWesterberg, Lars-GöranHöglund, ErikLundström, Staffan
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