<div class="csl-bib-body">
<div class="csl-entry">Neacşu, I. A., Scheichl, B., & Eder, S. (2014, October 26). <i>Experimental validation of numerical simulations of the flow in porous journal bearings</i> [Conference Presentation]. STLE Tribology Frontiers Conference 2014, Des Plaines/Chicago, Illinois, United States of America (the). http://hdl.handle.net/20.500.12708/196371</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/196371
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dc.description.abstract
This study shows a comparison between numerical simulations and experiments of the frictional behaviour in porous journal bearings. Experimental tests were carried out on bearings lubricated with poly-alpha-olefin base oils of distinct viscosities. The theoretical model includes the effects of cavitation by vaporization and accounts for the sinter flow by application of Darcy’s law. An accurate numerical interpolation scheme is used to estimate the eccentricity ratio corresponding to the load applied in the experiments. The comparison is performed by evaluation of the hydrodynamic branch of the Stribeck curve where the dependence of the viscosity on temperature according to the Ubbelohde–Walther relationship is considered. We find that the numerically calculated friction coefficients reproduce the trends of the experimental results satisfactorily well, yet the calculated values lie predominantly below the measured ones. An explanation of this low-positive correlation is given.
en
dc.language.iso
en
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dc.subject
Cavitation
en
dc.subject
Darcy-Brinkman law
en
dc.subject
Friction coefficient
en
dc.subject
Lubrication theory
en
dc.subject
Poly-alpha-olefin oils
en
dc.subject
Porous journal bearings
en
dc.subject
Stribeck curve
en
dc.title
Experimental validation of numerical simulations of the flow in porous journal bearings
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
AC2T Research (Austria), Austria
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dc.type.category
Conference Presentation
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tuw.researchTopic.id
C2
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tuw.researchTopic.id
C6
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tuw.researchTopic.name
Computational Fluid Dynamics
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.value
50
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tuw.researchTopic.value
50
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tuw.publication.orgunit
E322-01 - Forschungsbereich Strömungsmechanik
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tuw.publication.orgunit
E307-05 - Forschungsbereich Tribologie
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tuw.author.orcid
0000-0002-5685-9653
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tuw.author.orcid
0000-0002-2902-3076
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tuw.event.name
STLE Tribology Frontiers Conference 2014
en
dc.description.sponsorshipexternal
Austrian Research Promotion Agency (FFG), COMET-K2 (InTribology)
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dc.relation.grantnoexternal
849109
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tuw.event.startdate
26-10-2014
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tuw.event.enddate
28-10-2014
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Des Plaines/Chicago, Illinois
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tuw.event.country
US
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tuw.event.institution
Society of Tribologists and Lubrication Engineers (STLE)
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tuw.event.presenter
Neacşu, Ioana Adina
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tuw.event.track
Multi Track
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wb.sciencebranch
Maschinenbau
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wb.sciencebranch.oefos
2030
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wb.sciencebranch.value
100
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.fulltext
no Fulltext
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item.openairetype
conference paper not in proceedings
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.grantfulltext
none
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crisitem.author.dept
AC2T Research (Austria)
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crisitem.author.dept
E322-01 - Forschungsbereich Strömungsmechanik
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crisitem.author.dept
E307-05 - Forschungsbereich Tribologie
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crisitem.author.orcid
0000-0002-5685-9653
-
crisitem.author.orcid
0000-0002-2902-3076
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crisitem.author.parentorg
E322 - Institut für Strömungsmechanik und Wärmeübertragung
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crisitem.author.parentorg
E307 - Institut für Konstruktionswissenschaften und Produktentwicklung
