Investigation of the aerodynamic characteristics of a lifting body in ground proximity

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dc.contributor.authorHolt, Jennifer C.
dc.contributor.authorGarry, Kevin P.
dc.contributor.authorSmith, Tony
dc.date.accessioned2016-09-26T09:23:02Z
dc.date.available2016-09-26T09:23:02Z
dc.date.issued2016-07-31
dc.description.abstractThe use of cambered hull shapes in the next generation of lighter-than-air vehicles to enhance aerodynamic performance, together with optimized take-off manoeuvre profiles, will require a more detailed understanding of ground proximity effects for such aircraft. A series of sub-scale wind tunnel tests at Re = 1.4 x 106 on a 6:1 prolate spheroid are used to identify potential changes in aerodynamic lift, drag and pitching moment coefficients that are likely to be experienced on the vehicle hull in isolation when in close ground proximity. The experimental data is supported by a preliminary assessment of surface pressure changes using a high order panel method (PANAIR) and RANS CFD simulations to assess the flow structure. The effect of ground proximity, most evident when non-dimensional ground clearance (h/c) < 0.3, is to reduce lift coefficient, increase drag coefficient and increase the body pitching moment coefficient.en_UK
dc.identifier.citationHolt JC, Garry KP, Smith T. (2016) Investigation of the aerodynamic characteristics of a lifting body in ground proximity. Proceedings of the 34th AIAA Applied Aerodynamics Conference, 13-17 June 2016, Washington D.C., USA. Paper number AIAA 2016-3881en_UK
dc.identifier.isbn978162410437-4
dc.identifier.urihttp://dx.doi.org/10.2514/6.2016-3881
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10590
dc.language.isoenen_UK
dc.publisherAmerican Institute of Aeronautics and Astronauticsen_UK
dc.rightsPublished by AIAA. This is the Author Accepted Manuscript issued with: Creative Commons Attribution Non-Commercial License (CC:BY:NC 3.0). Attribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.titleInvestigation of the aerodynamic characteristics of a lifting body in ground proximityen_UK
dc.typeArticleen_UK

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