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R&D Journal
versão On-line ISSN 2309-8988
versão impressa ISSN 0257-9669
Resumo
LUTZ, T. e SAYERS, A.T.. Wind tunnel boundary layer effects on the aerodynamic drag of model trucks. R&D j. (Matieland, Online) [online]. 1999, vol.15, pp.9-15. ISSN 2309-8988.
The influence of the boundary layer on the floor of a wind tunnel on the aerodynamic drag of a model truck is examined. Through an extensive literature survey, a boundary layer suction system providing adequate ground simulation was designed and built. This suction drive was then tested to ensure that none of the main flow parameters of the airstream was influenced through its action. Testing on a model truck, featuring rotating wheels, with and without ground simulation, resulted in an increase in drag when the boundary layer was removed. It was also shown that the further a model protrudes into the original boundary layer, the less the drag.
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