View in EDS PDF Full Text

Influence of Inter-Vehicle Distance on the Aerodynamics of a Two-Truck Platoon.

Saved in:
Bibliographic Details
Title: Influence of Inter-Vehicle Distance on the Aerodynamics of a Two-Truck Platoon.
Authors: Törnell, Johannes1 (AUTHOR) johannes.tornell@chalmers.se, Sebben, Simone1 (AUTHOR), Söderblom, David2 (AUTHOR)
Source: International Journal of Automotive Technology. Jun2021, Vol. 22 Issue 3, p747-760. 14p.
Subjects: Aerodynamics, Computational fluid dynamics, Motor vehicle driving, Truck driving, Model trucks, Aerodynamic load, Transonic flow
Abstract: The increasing importance of fuel and energy efficiency in transport combined with recent improvements in vehicle automation has renewed interest in the concept of platooning. Many studies so far have used very simplified models, thus, creating a need for understanding the flow behavior and the aerodynamic gains in more complex scenarios. This paper proposes a method of examining the aerodynamics of vehicles driving in close proximity using detailed European truck models and Computational Fluid Dynamics. The study was conducted using two trucks driving at inter-vehicle distances of 2.5 m to 20 m. A thorough numerical investigation was carried out and showed that the combined drag of the platoon had a continuous improvement with decreased distance between the vehicles. This was due to a significant drag improvement of the leading truck. This behavior originated from the increased base pressure induced by the presence of a close blockage behind it. The drag of the trailing truck showed an opposite behavior, that is, a moderate increase in drag with decreased inter-vehicle distance. This was a result of a decreased acceleration of the flow around the front edges and an increase in pressure in the tractor-trailer gap. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Automotive Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 150591902
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Influence of Inter-Vehicle Distance on the Aerodynamics of a Two-Truck Platoon.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Törnell%2C+Johannes%22">Törnell, Johannes</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> johannes.tornell@chalmers.se</i><br /><searchLink fieldCode="AR" term="%22Sebben%2C+Simone%22">Sebben, Simone</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Söderblom%2C+David%22">Söderblom, David</searchLink><relatesTo>2</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Automotive+Technology%22">International Journal of Automotive Technology</searchLink>. Jun2021, Vol. 22 Issue 3, p747-760. 14p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Aerodynamics%22">Aerodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Motor+vehicle+driving%22">Motor vehicle driving</searchLink><br /><searchLink fieldCode="DE" term="%22Truck+driving%22">Truck driving</searchLink><br /><searchLink fieldCode="DE" term="%22Model+trucks%22">Model trucks</searchLink><br /><searchLink fieldCode="DE" term="%22Aerodynamic+load%22">Aerodynamic load</searchLink><br /><searchLink fieldCode="DE" term="%22Transonic+flow%22">Transonic flow</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The increasing importance of fuel and energy efficiency in transport combined with recent improvements in vehicle automation has renewed interest in the concept of platooning. Many studies so far have used very simplified models, thus, creating a need for understanding the flow behavior and the aerodynamic gains in more complex scenarios. This paper proposes a method of examining the aerodynamics of vehicles driving in close proximity using detailed European truck models and Computational Fluid Dynamics. The study was conducted using two trucks driving at inter-vehicle distances of 2.5 m to 20 m. A thorough numerical investigation was carried out and showed that the combined drag of the platoon had a continuous improvement with decreased distance between the vehicles. This was due to a significant drag improvement of the leading truck. This behavior originated from the increased base pressure induced by the presence of a close blockage behind it. The drag of the trailing truck showed an opposite behavior, that is, a moderate increase in drag with decreased inter-vehicle distance. This was a result of a decreased acceleration of the flow around the front edges and an increase in pressure in the tractor-trailer gap. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Automotive Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=150591902
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s12239-021-0068-5
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 747
    Subjects:
      – SubjectFull: Aerodynamics
        Type: general
      – SubjectFull: Computational fluid dynamics
        Type: general
      – SubjectFull: Motor vehicle driving
        Type: general
      – SubjectFull: Truck driving
        Type: general
      – SubjectFull: Model trucks
        Type: general
      – SubjectFull: Aerodynamic load
        Type: general
      – SubjectFull: Transonic flow
        Type: general
    Titles:
      – TitleFull: Influence of Inter-Vehicle Distance on the Aerodynamics of a Two-Truck Platoon.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Törnell, Johannes
      – PersonEntity:
          Name:
            NameFull: Sebben, Simone
      – PersonEntity:
          Name:
            NameFull: Söderblom, David
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: Jun2021
              Type: published
              Y: 2021
          Identifiers:
            – Type: issn-print
              Value: 12299138
          Numbering:
            – Type: volume
              Value: 22
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: International Journal of Automotive Technology
              Type: main
ResultId 1