[article]
| Titre : |
A modification of the switch function in the elrod cavitation algorithm |
| Type de document : |
texte imprimé |
| Auteurs : |
M. Fesanghary, Auteur ; M. M. Khonsari, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
04 p. |
| Note générale : |
Tribology |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Cavitation Lubrication Numerical analysis |
| Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
| Résumé : |
The implementation of the mass-conservative cavitation algorithm, as derived by Elrod, requires an automatic setting of a binary switch function that delineates the full-film and cavitation zones. Abrupt changes associated with this function often causes convergence and instability issues. A method is that which improves numerical instability and overcomes the convergence issues caused by the conventional binary switch function. Two test cases are presented, which show that by using the new switching algorithm together with a successive over-relaxation solver, the Elrod cavitation algorithm converges up to 61% faster while it is less prone to numerical instabilities. |
| 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° 2 (Avril 2011) . - 04 p.
[article] A modification of the switch function in the elrod cavitation algorithm [texte imprimé] / M. Fesanghary, Auteur ; M. M. Khonsari, Auteur . - 2012 . - 04 p. Tribology Langues : Anglais ( eng) in Transactions of the ASME . Journal of tribology > Vol. 133 N° 2 (Avril 2011) . - 04 p.
| Mots-clés : |
Cavitation Lubrication Numerical analysis |
| Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
| Résumé : |
The implementation of the mass-conservative cavitation algorithm, as derived by Elrod, requires an automatic setting of a binary switch function that delineates the full-film and cavitation zones. Abrupt changes associated with this function often causes convergence and instability issues. A method is that which improves numerical instability and overcomes the convergence issues caused by the conventional binary switch function. Two test cases are presented, which show that by using the new switching algorithm together with a successive over-relaxation solver, the Elrod cavitation algorithm converges up to 61% faster while it is less prone to numerical instabilities. |
| DEWEY : |
621.5 |
| ISSN : |
0742-4787 |
| En ligne : |
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] |
|
A modification of the switch function in the elrod cavitation algorithm in Transactions of the ASME . Journal of tribology, Vol. 133 N° 2 (Avril 2011)
