Aerodynamic Characterisation of a Compact Car Overtaking a Heavy Vehicle

Wilhelmi, Henning; Jessing, Christoph; Bell, James; Heine, Daniela; Wagner, Claus; Wiedemann, Jochen

doi:10.1007/978-3-030-25253-3_75

Cited by 11 publications

(2 citation statements)

References 5 publications

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“…These publications enable to define a reasonable cut-off pressure measurement frequency around 30 Hz. Some other studies deal with vehicle stability during cross wind conditions generated by overtaking situations (Wilhelmi et al , 2018).…”

Section: Introductionmentioning

confidence: 99%

Aerodynamical characteristics of a reduced scale ground vehicle according to yaw angle variations

Gilotte

Mortazavi

Carvajal

et al. 2021

HFF

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Purpose The purpose of this paper is to study pressure measurement correlations, as the location of the pressure sensors should enable to capture variation of the drag force depending on the yaw angle and some geometrical modifications. Design/methodology/approach The present aerodynamical study, performed on a reduced scale mock-up representing a sport utility vehicle, involves both numerical and experimental investigations. Experiments performed in a wind tunnel facility deal with drag and pressure measurements related to the side wind variation. The pressure sensor locations are deduced from wall streamlines computed from large eddy simulation results on the external surfaces of the mock-up. Findings After validation of the drag coefficient (Cd) values computed with an aerodynamic balance, measurements should only imply pressure tap mounted on the vehicle to perform real driving emission (RDE) tests. Originality/value Relation presented in this paper between pressure coefficients measured on a side sensor and the drag coefficient data must enable to better quantify the drag force contribution of a ground vehicle in RDE tests.

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Section: Introductionmentioning

confidence: 99%

Aerodynamical characteristics of a reduced scale ground vehicle according to yaw angle variations

Gilotte

Mortazavi

Carvajal

et al. 2021

HFF

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“…In collaboration with the University of Stuttgart and the Research Association of Automotive Technology (FAT), a series of on-road [1] and wind tunnel experiments [2] were conducted in order to characterize the onflow conditions for a vehicle driving behind another vehicle under real-world conditions. In conjunction with these experiments a CFD study was undertaken for both the on-road and wind tunnel measurements.…”

mentioning

confidence: 99%

On the Simulation of a Heavy Vehicle Wake in OpenFOAM with Real-World Data

Weinman¹,

Wilhelmi

Bell³

et al. 2021

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Aerodynamic Characterisation of a Compact Car Driving Behind a Heavy Vehicle

Wilhelmi

Jessing

Bell

et al. 2021

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Aerodynamic research and development of automotive vehicles is commonly conducted in windtunnel experiments and numerical simulations under idealized conditions, which are not necessarily representative of diverse, complex real-world flow conditions. The work presented provides new insight and understanding into the flow conditions and their effects on a vehicle's unsteady aerodynamics for a typicalparticularly on the German Autobahnreal-world operating case: Driving behind a heavy vehicle.

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Aerodynamic Characterisation of a Compact Car Overtaking a Heavy Vehicle

Cited by 11 publications

References 5 publications

Aerodynamical characteristics of a reduced scale ground vehicle according to yaw angle variations

Aerodynamical characteristics of a reduced scale ground vehicle according to yaw angle variations

On the Simulation of a Heavy Vehicle Wake in OpenFOAM with Real-World Data

Aerodynamic Characterisation of a Compact Car Driving Behind a Heavy Vehicle

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