Change search
ReferencesLink to record
Permanent link

Direct link
A CFD study of a finite textured journal bearing
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.
2008 (English)In: Hydro technology and the evironment for the new century: 24th IAHR Symposium on Hydraulic Machinery and Systems, October 27 - 31, 2008, Foz do Iguassu, Brazil, Foz do Iguassu, 2008Conference paper (Refereed)
Abstract [en]

An analysis of a lubricated journal bearing is performed with special attention to the influence of textured surfaces which may improve hydrodynamic performance. The bearing is subjected to an external applied load and the force balance is fulfilled with the force of the flow acting on the bearing. The position of the shaft is fixed whereas the bearing, centred at the starting time, moves under the forces until equilibrium is reached. A mesh deformation technique is used with CFD (Computational Fluid Dynamics) in order to perform the simulations. The flow is laminar, isothermal, three-dimensional (3D) and unsteady. Cavitation is taken into account. Results are analysed with smooth and textured surfaces on the bearing. Friction force and eccentricity ratio are compared for different configurations.It is found that shallow grooves under light loading (ε < 0.15) enhance the minimum film thickness while reducing the friction force. Under high loading (ε > 0.5), deep grooves are able to reduce the friction force despite a reduced minimum film thickness. For the second case, the predicted performance is superior to those of a smooth journal bearing with thinner lubricant.

Place, publisher, year, edition, pages
Foz do Iguassu, 2008.
Research subject
Fluid Mechanics; Machine Elements
URN: urn:nbn:se:ltu:diva-27393Local ID: 0d536f40-b010-11dd-b677-000ea68e967bISBN: 978-85-60858-13-1 (PDF)OAI: diva2:1000576
IAHR Symposium on Hydraulic Machinery and Systems : 27/10/2008 - 31/10/2008
Godkänd; 2008; Bibliografisk uppgift: 1 CD-ROM; 20081111 (ysko)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

Open Access in DiVA

fulltext(280 kB)12 downloads
File information
File name FULLTEXT01.pdfFile size 280 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Cupillard, SamuelCervantes, MichelGlavatskih, Sergei
By organisation
Fluid and Experimental MechanicsMachine Elements

Search outside of DiVA

GoogleGoogle Scholar
Total: 12 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

ReferencesLink to record
Permanent link

Direct link