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Assessment of Drag Reduction Devices Mounted on a Simplified ‎Tractor-Trailer Truck Model

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Title: Assessment of Drag Reduction Devices Mounted on a Simplified ‎Tractor-Trailer Truck Model
Authors: Terrance Charles, Zhiyin Yang, Yiling Lu
Source: Journal of Applied and Computational Mechanics, Vol 7, Iss 1, Pp 45-53 (2021)
Publisher Information: Shahid Chamran University of Ahvaz, 2021.
Publication Year: 2021
Collection: LCC:Mechanics of engineering. Applied mechanics
Subject Terms: tractor-trailer combination truck, aerodynamic drag, drag reduction device, numerical simulation, Mechanics of engineering. Applied mechanics, TA349-359
More Details: Aerodynamic drag reduction of tractor-trailer combination trucks is critically important to improve their fuel consumption which consequently results in lower emissions. One practical method to reduce aerodynamic drag of a truck is by mounting drag reduction devices on the truck. This paper presents a numerical study of turbulent flow over a simplified tractor-trailer truck with different drag reduction devices mounted on the truck using the Reynolds Averaged Navier-Stokes (RANS) approach to assess the effectiveness of those devices in drag reduction around the tractor-trailer gap region. Three cases with different drag reduction devices have been studied and significant drag reduction (above 30%) has been achieved for all three cases. Detailed analysis of the flow field has been carried out to understand drag reduction mechanisms, and it shows that no matter what drag reduction devices are deployed the drag reduction is mainly due to the reduced pressure on the front face of the trailer, and a small proportion of the drag reduction is due to the reduced turbulent kinetic energy in the gap region.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2383-4536
Relation: https://jacm.scu.ac.ir/article_15815_d66372c2aa596500db4a3824f1fda977.pdf; https://doaj.org/toc/2383-4536
DOI: 10.22055/jacm.2020.34811.2475
Access URL: https://doaj.org/article/ff2776a93dd7490ea682b5db3783ab90
Accession Number: edsdoj.ff2776a93dd7490ea682b5db3783ab90
Database: Directory of Open Access Journals
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  Data: Journal of Applied and Computational Mechanics, Vol 7, Iss 1, Pp 45-53 (2021)
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  Data: <searchLink fieldCode="DE" term="%22tractor-trailer+combination+truck%22">tractor-trailer combination truck</searchLink><br /><searchLink fieldCode="DE" term="%22aerodynamic+drag%22">aerodynamic drag</searchLink><br /><searchLink fieldCode="DE" term="%22drag+reduction+device%22">drag reduction device</searchLink><br /><searchLink fieldCode="DE" term="%22numerical+simulation%22">numerical simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanics+of+engineering%2E+Applied+mechanics%22">Mechanics of engineering. Applied mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22TA349-359%22">TA349-359</searchLink>
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  Data: Aerodynamic drag reduction of tractor-trailer combination trucks is critically important to improve their fuel consumption which consequently results in lower emissions. One practical method to reduce aerodynamic drag of a truck is by mounting drag reduction devices on the truck. This paper presents a numerical study of turbulent flow over a simplified tractor-trailer truck with different drag reduction devices mounted on the truck using the Reynolds Averaged Navier-Stokes (RANS) approach to assess the effectiveness of those devices in drag reduction around the tractor-trailer gap region. Three cases with different drag reduction devices have been studied and significant drag reduction (above 30%) has been achieved for all three cases. Detailed analysis of the flow field has been carried out to understand drag reduction mechanisms, and it shows that no matter what drag reduction devices are deployed the drag reduction is mainly due to the reduced pressure on the front face of the trailer, and a small proportion of the drag reduction is due to the reduced turbulent kinetic energy in the gap region.
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        PageCount: 9
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      – SubjectFull: tractor-trailer combination truck
        Type: general
      – SubjectFull: aerodynamic drag
        Type: general
      – SubjectFull: drag reduction device
        Type: general
      – SubjectFull: numerical simulation
        Type: general
      – SubjectFull: Mechanics of engineering. Applied mechanics
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      – SubjectFull: TA349-359
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      – TitleFull: Assessment of Drag Reduction Devices Mounted on a Simplified ‎Tractor-Trailer Truck Model
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            NameFull: Yiling Lu
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