[article]
| Titre : |
Theoretical investigation of couple stress squeeze films in a curved circular geometry |
| Type de document : |
texte imprimé |
| Auteurs : |
Vimala Manivasakan, Auteur ; Govindarajan Sumathi, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
08 p. |
| Note générale : |
Tribology |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Discs (structures) Hydrodynamics Laminar flow Lubrication Non-Newtonian |
| Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
| Résumé : |
A theoretical investigation of the laminar squeeze flow of a couple-stress fluid between a flat circular static disk and an axisymmetric curved circular moving disk has been carried out using modified lubrication theory and microcontinuum theory. The combined effects of fluid inertia forces, curvature of the disk and non-Newtonian couple stresses on the squeeze film behavior are investigated analytically. Each of these effects and their combinations show a significant enhancement in the squeeze film behavior, and these are studied through their effects on the squeeze film pressure and the load carrying capacity of the fluid film as a function of time. Two different forms of the gapwidth between the disks have been considered, and the results have been shown to be in good agreement with the existing literature. |
| DEWEY : |
621.5 |
| ISSN : |
0742-4787 |
| En ligne : |
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] |
in Transactions of the ASME . Journal of tribology > Vol. 133 N° 4 (Octobre 2011) . - 08 p.
[article] Theoretical investigation of couple stress squeeze films in a curved circular geometry [texte imprimé] / Vimala Manivasakan, Auteur ; Govindarajan Sumathi, Auteur . - 2012 . - 08 p. Tribology Langues : Anglais ( eng) in Transactions of the ASME . Journal of tribology > Vol. 133 N° 4 (Octobre 2011) . - 08 p.
| Mots-clés : |
Discs (structures) Hydrodynamics Laminar flow Lubrication Non-Newtonian |
| Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
| Résumé : |
A theoretical investigation of the laminar squeeze flow of a couple-stress fluid between a flat circular static disk and an axisymmetric curved circular moving disk has been carried out using modified lubrication theory and microcontinuum theory. The combined effects of fluid inertia forces, curvature of the disk and non-Newtonian couple stresses on the squeeze film behavior are investigated analytically. Each of these effects and their combinations show a significant enhancement in the squeeze film behavior, and these are studied through their effects on the squeeze film pressure and the load carrying capacity of the fluid film as a function of time. Two different forms of the gapwidth between the disks have been considered, and the results have been shown to be in good agreement with the existing literature. |
| DEWEY : |
621.5 |
| ISSN : |
0742-4787 |
| En ligne : |
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] |
|
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