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An Experimental and Numerical Investigation of the Near Wake Field of a Tractor-Trailer Configuration

Haff, Johannes and Tschech, Joachim and Richard, Hugues and Loose, Sigfried and Wagner, Claus (2014) An Experimental and Numerical Investigation of the Near Wake Field of a Tractor-Trailer Configuration. In: New Results in Numerical and Experimental Fluid Mechanics IX Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 124. Springer Verlag, Cham Heidelberg New York Dordrecht London. pp. 325-333. ISBN 978-3-319-03157-6. ISSN 1612-2909

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Official URL: http://link.springer.com/book/10.1007%2F978-3-319-03158-3_33

Abstract

An experimental and numerical study was performed with a 1/15th scaled model of a typical European tractor-trailer configuration. The objective was to develop a new and practicable passive method which reduces the aerodynamic pressure drag by controlling the unsteady velocity field behind the trailer. The experiments included the measurement of the pressure distribution on the trailer base, the velocity wake based on particle image velocimetry and the resulting aerodynamic loads. A trailer underbody equipped with a full fairing and a rear diffuser with side plates is shown to reduce the aerodynamic drag coefficient by 2.4 %. The direct influence on the trailer wake and the resultant base pressure of the trailer is presented. The results of the also conducted Computational Fluid Dynamics (CFD) predictions confirm the effect of the drag reducing add-on devices on the velocity and pressure field in accordance to the experimental data.

Item URL in elib:https://elib.dlr.de/78816/
Document Type:Contribution to a Collection
Additional Information:ISSN 1860-0824 (electronic); ISBN: 978-3-319-03158-3 (eBook); DOI 10.1007/978-3-319-03158-3_33; Library of Congress Control Number: 2013957123
Title:An Experimental and Numerical Investigation of the Near Wake Field of a Tractor-Trailer Configuration
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Haff, JohannesJohannes.Haff (at) dlr.deUNSPECIFIED
Tschech, JoachimUNSPECIFIEDUNSPECIFIED
Richard, HuguesUNSPECIFIEDUNSPECIFIED
Loose, SigfriedSigfried.Loose (at) dlr.deUNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics IX
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:124
Page Range:pp. 325-333
Editors:
EditorsEmail
Dillmann, AndreasDLR
Heller, GerdAirbus Deutschland
Krämer, EwaldUniversity of Stuttgart
Kreplin, Hans-PeterDLR
Nitsche, WolfgangTU Berlin
Rist, UlrichUniversity of Stuttgart
Publisher:Springer Verlag, Cham Heidelberg New York Dordrecht London
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-319-03157-6
Status:Published
Keywords:drag reduction, tractor-trailer, particle image velocimetry, computational fluid dynamics, rear diffuser, underbody fairing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Project Next Generation Train II (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Haff, Johannes
Deposited On:26 Mar 2014 13:33
Last Modified:26 Mar 2014 13:33

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