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  • 1970-1974  (1)
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    facet.materialart.
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    Drag reductions obtained by modifying a box-shaped ground vehicle (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A box-shaped ground vehicle was used to simulate the aerodynamic drag of high volume transports, that is, delivery vans, trucks, or motor homes. The coast-down technique was used to define the drag of the original vehicle, having all square corners, and several modifications of the vehicle. Test velocities ranged up to 65 miles per hour, which provided maximum Reynolds numbers of 1 times 10 to the 7th power based on vehicle length. One combination of modifications produced a reduction in aerodynamic drag of 61 percent as compared with the original square-cornered vehicle.
    Keywords: AERODYNAMICS
    Type: NASA-TM-X-56027
    Format: application/pdf
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