Abstract
Numerical simulations of a truck-type configuration are carried out with the aim to investigate the effectiveness of various drag reduction devices. Unsteady Reynolds-Averaged Navier-Stokes equations are solved to capture the periodic wake motion at the base of the model and comparisons with available measurements show satisfactory agreement. Two passive devices are applied to the back of the model to investigate their effect on the pressure recovery and the base pressure. Up to 15% drag reduction is obtained using a boattail appendix. In addition, a Coanda jet system is designed and simulated. In this case the amount of drag reduction is directly related to the amount of injected mass and a zero drag condition can be obtained.
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© 2004 Springer-Verlag Berlin Heidelberg
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Iaccarino, G., de Maio, B., Verzicco, R., Khalighi, B. (2004). RANS Simulations of Passive and Active Drag Reduction Devices for a Road Vehicle. In: McCallen, R., Browand, F., Ross, J. (eds) The Aerodynamics of Heavy Vehicles: Trucks, Buses, and Trains. Lecture Notes in Applied and Computational Mechanics, vol 19. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-44419-0_25
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DOI: https://doi.org/10.1007/978-3-540-44419-0_25
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-53586-4
Online ISBN: 978-3-540-44419-0
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