Inertia effects in textured hydrodynamic contacts
2010 (English)In: Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, ISSN 1350-6501, Vol. 224, no 8, 751-756 p.Article in journal (Refereed) Published
A flow analysis is carried out for a parallel textured slider to investigate the role of fluid inertia. Numerical simulations are performed for a laminar, two-dimensional, steady and isothermal flow. Stokes solutions are compared with Navier-Stokes solutions at the same Reynolds number. A range of texture depths is analysed. It is shown that there is an optimum value of texture depth that provides maximum load-carrying capacity. It is also shown that there is a critical depth value. Inertia has a negative effect on the load-carrying capacity for depths higher than the critical value, whereas it has a positive effect for lower depths. For a given texture depth, these effects are amplified as the Reynolds number increases. The global effect of inertia is positive when a realistic configuration of a parallel textured slider with a fore-region is considered.
Place, publisher, year, edition, pages
2010. Vol. 224, no 8, 751-756 p.
hydrodynamic contacts, textured surface, inertia effects, fore-region
IdentifiersURN: urn:nbn:se:kth:diva-80097DOI: 10.1243/13506501JET697ISI: 000281483600007OAI: oai:DiVA.org:kth-80097DiVA: diva2:496011
QC 201202152012-02-092012-02-092012-02-15Bibliographically approved