| Titre : | On the suppression of vortex shedding from circular cylinders using detached short splitter-plates (2010) |
| Auteurs : | Behzad Ghadiri Dehkordi, Auteur ; Hamed Houri Jafari, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Transactions of the ASME . Journal of fluids engineering (Vol. 132 N° 4, Avril 2010) |
| Article en page(s) : | 04 p. |
| Note générale : | fluids engineering |
| Langues : | Anglais |
| Tags : | force ; pressure ; flow (dynamics) ; drag (fluid dynamics) ; engineering simulation ; plates (structures) ; circular cylinders ; vortex shedding |
| Résumé : | Flow over a circular cylinder with detached short splitter-plates is numerically simulated in order to assess the suppression of periodic vortex shedding. A finite-volume solver based on the Cartesian-staggered grid is implemented, and the ghost-cell method in conjunction with Great-Source-Term technique is employed in order to enforce directly the no-slip condition on the cylinder boundary. The accuracy of the solver is validated by simulation of the flow around a single circular cylinder. The results are in good agreement with the experimental data reported in the literature. Finally, the flows over a circular cylinder with splitter-plate in its downstream (off and on the centerline) are computed in Re=40 as a nonvortex shedding case and in Re=100 and 150 as cases with vortex shedding effects. The same simulations are also performed for the case where dual splitter-plates are in a parallel arrangement embedded in the downstream of the cylinder. The optimum location of the splitter-plate to achieve maximum reduction in the lift and drag forces is determined. |
| DEWEY : | 620.1 |
| ISSN : | 0098-2202 |
| En ligne : | http://fluidsengineering.asmedigitalcollection.asme.org/issue.aspx?journalid=122&issueid=27414 |
