| Titre : | Drag reduction of tractor-trailers using optimized add-on devices (2010) |
| Auteurs : | Fu-Hung Hsu, Auteur ; Roger L. Davis, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Transactions of the ASME . Journal of fluids engineering (Vol. 132 N° 8, Août 2010) |
| Article en page(s) : | 06 p. |
| Note générale : | fluids engineering |
| Langues : | Anglais |
| Tags : | flow (dynamics) ; turbulence ; drag (fluid dynamics) ; design ; engineering simulation ; vehicles ; reduction ; boats ; fuel consumption |
| Résumé : | Tractor-trailers have a higher drag coefficient than other vehicles due to their bluff-body shape. Numerous add-on devices have been invented to help reduce drag and fuel consumption. The current research extends our previous idea of add-on humps and investigates their effect in conjunction with curved boat-tail flaps. Computational fluid dynamics in the form of unsteady Reynolds-averaged Navier–Stokes and detached-eddy simulations were used to determine viable design strategies. A 3D baseline computational model was constructed using an Ahmed body. Design optimization was applied on the new add-on devices. The results from the optimized design were shown to have a 50.9% reduction in drag coefficient. |
| DEWEY : | 620.1 |
| ISSN : | 0098-2202 |
| En ligne : | http://fluidsengineering.asmedigitalcollection.asme.org/issue.aspx?journalid=122&issueid=27426 |
