A wind tunnel investigation into the effects of roof curvature on the aerodynamic drag experienced by a light goods vehicle

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dc.contributor.authorHolt, Jennifer C.
dc.contributor.authorGarry, Kevin P.
dc.contributor.authorVelikov, S.
dc.date.accessioned2016-10-27T14:24:38Z
dc.date.available2016-10-27T14:24:38Z
dc.date.issued2015-01-01
dc.description.abstractRoof curvature is used to increase ground vehicle camber and enhance rear-body boat-tailing to reduce aerodynamic drag. Little aerodynamic data is published for light goods vehicles (LGVs) which account for a significant proportion of annual UK licensed vehicle miles. This paper details scale wind tunnel measurements at Re = 1.6 × 106 of a generic LGV utilising interchangeable roof panels to investigate the effects of curved roof profile on aerodynamic drag at simulated crosswinds between -6° and 16°. Optimum magnitudes of roof profile depth and axial location are suggested and the limited dataset indicates that increasing roof curvature is effective in reducing drag over a large yaw range, compared to a flat roof profile. This is primarily due to increased base pressure, possibly from enhanced mixing of longitudinal vortices shed from the rear-body upper side edges and increased turbulent mixing in the near-wake due to the increased effective boat-tail angle.en_UK
dc.identifier.citationHolt JC, Garry KP, Velikov S. (2015) A wind tunnel investigation into the effects of roof curvature on the aerodynamic drag experienced by a light goods vehicle. International Journal of Vehicle Design, Volume 67, Issue 1, pp. 45-62en_UK
dc.identifier.issn0143-3369
dc.identifier.urihttp://dx.doi.org/10.1504/IJVD.2015.066478
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10891
dc.language.isoenen_UK
dc.publisherInderscienceen_UK
dc.rightsPublished by Inderscience. This is the Author Accepted Manuscript. This article may be used for personal use only. The final published version (version of record) is available online at 10.1504/IJVD.2015.066478. Please refer to any applicable publisher terms of use.en_UK
dc.subjectAerodynamic drag reductionen_UK
dc.subjectRoof curvatureen_UK
dc.subjectWind tunnelen_UK
dc.subjectLGVen_UK
dc.subjectLight goods vehicleen_UK
dc.subjectWind averaged dragen_UK
dc.subjectYawen_UK
dc.subjectBoat tailen_UK
dc.titleA wind tunnel investigation into the effects of roof curvature on the aerodynamic drag experienced by a light goods vehicleen_UK
dc.typeArticleen_UK

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