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Experimental study of lubricating grease flow inside the gap of a labyrinth seal using micro Particle Image Velocimetry
Wrocław University of Science and Technology.
Department of Design Fundamentals and Fluid-Flow Machinery, Wrocław University of Technology.
Department of Fundamentals of Machine Design and Tribology, Wrocław University of Technology.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
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Number of Authors: 5
2017 (English)In: Tribology Transactions, ISSN 1040-2004, E-ISSN 1547-397XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

In this study the flow of lubricating greases in a labyrinth seal geometry is studied using micro Particle Image Velocimetry (µPIV). The aim is to evaluate the grease velocity distribution inside the gap of a labyrinth seal and to find a relationship between the grease consistency and the transferred speed from the rotating ring in order to choose the correct grease as a sealing medium. Also, the grease flow characteristics are important for the understanding of fracture due to grease layer displacement. For these purposes, four greases with different rheological properties were used in µPIV experiments. It was found that not only the grease consistency plays a crucial role in speed development but also the grease composition and the slip effect presence at the grease-rotating wall interface.

Place, publisher, year, edition, pages
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Signal Processing Tribology
Research subject
Signal Processing; Machine Elements
URN: urn:nbn:se:ltu:diva-61056DOI: 10.1080/10402004.2016.1271928OAI: diva2:1055725
Available from: 2016-12-13 Created: 2016-12-13 Last updated: 2017-01-17

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Westerberg, Lars-GöranHöglund, Erik
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