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Pressure buildup mechanism in a textured inlet of a hydrodynamic contact
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0001-7599-0895
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.
2008 (engelsk)Inngår i: Journal of tribology, ISSN 0742-4787, E-ISSN 1528-8897, Vol. 130, nr 2Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A flow analysis is carried out for an inclined slider bearing with the aim of showing the governing mechanism at conditions where an optimum in load carrying capacity is achieved. The effects of surface texture on pressure buildup and load carrying capacity are explained for a textured slider bearing geometry. Numerical simulations are performed for laminar, steady, and isothermal flows. The energy transferred to the fluid from the moving wall is converted into pressure in the initial part of the converging contact and into losses in the second part. The convergence ratio can be increased, in order to get the greatest pressure gradient, until the limiting value where flow recirculation begins to occur. The texture appears to achieve its maximum efficiency when its depth is such that the velocity profile is stretched at its maximum extent without incurring incoming recirculating flow. The wall profile shape controlling the velocity profile can be optimized for many hydrodynamic contacts

sted, utgiver, år, opplag, sider
2008. Vol. 130, nr 2
HSV kategori
Forskningsprogram
Strömningslära; Maskinelement
Identifikatorer
URN: urn:nbn:se:ltu:diva-11478DOI: 10.1115/1.2805426ISI: 000255881100018Scopus ID: 2-s2.0-68349161642Lokal ID: a77358c0-09e8-11dd-ae49-000ea68e967bOAI: oai:DiVA.org:ltu-11478DiVA, id: diva2:984428
Merknad
Validerad; 2008; Bibliografisk uppgift: Paper id:: 021701; 20080414 (cervante)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Cupillard, SamuelCervantes, MichelGlavatskih, Sergei

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