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Reduced Aerodynamic Drag for Truck-Trailer Configurations Using Parametrized CFD Studies
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, The Institute of Technology.ORCID iD: 0000-0003-4656-7662
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, The Institute of Technology.ORCID iD: 0000-0003-1942-7699
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-5526-2399
2012 (English)In: ASME 2012 International Mechanical Engineering Congress and Exposition, Volume 7: Fluids and Heat Transfer Parts A, B, C, and D, New York, NY, USA: American Society of Mechanical Engineers , 2012, 1213-1220 p.Conference paper, Published paper (Refereed)
Abstract [en]

In the presented work, two studies using ComputationalFluid Dynamics (CFD) have been conducted on a generictruck-like model with and without a trailer unit at a speed of 80km/h. The purpose is to evaluate drag reduction possibilitiesusing externally fitted devices. A first study deals with a flapplaced at the back of a rigid truck and inclined at seven differentangles with two lengths. Results show that it is possible todecrease drag by 4%. In a second study, the flap has been fittedon the tractor and trailer units of a truck-trailer combination.Four settings were surveyed for this investigation, one of whichproved to decrease drag by up to 15%. A last configurationwhere the gap between the units has been closed has also beenevaluated. This configuration offers a 15% decrease in drag.Adding a flap to the closed gap configuration decreases drag by18%. New means of reducing aerodynamic drag of heavy-duty(HD) vehicles will be important in the foreseeable future inorder to improve the fuel economy. The possibilities of reducingdrag are prevalent using conceptual design.

Place, publisher, year, edition, pages
New York, NY, USA: American Society of Mechanical Engineers , 2012. 1213-1220 p.
Keyword [en]
Drag reduction, aerodynamics, CFD, generic, scaled, bluff-body, rigid truck, trailer, device, flap, SST
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:liu:diva-98425DOI: 10.1115/IMECE2012-86816ISI: 000350071100140ISBN: 978-0-7918-4523-3 (print)OAI: oai:DiVA.org:liu-98425DiVA: diva2:654772
Conference
ASME 2012,International Mechanical Engineering Congress and Exposition, November 9-15, 2012, Houston, Texas, USA
Available from: 2013-10-08 Created: 2013-10-08 Last updated: 2017-03-07Bibliographically approved

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Pavlovic, SrdanAndersson, MagnusLantz, JonasKarlsson, Matts

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Pavlovic, SrdanAndersson, MagnusLantz, JonasKarlsson, Matts
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Applied Thermodynamics and Fluid MechanicsThe Institute of TechnologyCenter for Medical Image Science and Visualization (CMIV)
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