IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i24p6592-d461910.html
   My bibliography  Save this article

Fluid-Dynamic Force Measurement of Ahmed Model in Steady-State Cornering

Author

Listed:
  • Takuji Nakashima

    (Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan)

  • Hidemi Mutsuda

    (Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan)

  • Taiga Kanehira

    (Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan)

  • Makoto Tsubokura

    (RIKEN Center for Computational Science (R-CCS), 7-1-26 Minatojima-minami-machi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
    Graduate School of System Informatics, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan)

Abstract

The effects of on-road disturbances on the aerodynamic drag are attracting attention in order to accurately evaluate the fuel efficiency of an automobile on a road. The present study investigated the effects of cornering motion on automobile aerodynamics, especially focusing on the aerodynamic drag. Using a towing tank facility, measurements of the fluid-dynamic force acting on Ahmed models during steady-state cornering were conducted in water. The investigation included Ahmed models with slant angles θ = 25° and 35°, reproducing the wake structures of two different types of automobiles. The drag increase due to steady-state cornering motion was experimentally measured, and showed good agreement with previous numerical research, with the measurements conducted at a Reynolds number of 6 × 10 5 , based on the model length. The Ahmed model with θ = 35° showed a greater drag increase due to the steady-state cornering motion than that with θ = 25°, and it reached 15% of the total drag at a corner with a radius that was 10 times the vehicle length. The results indicated that the effect of the cornering motion on the automobile aerodynamics would be more important, depending on the type of automobile and its wake characteristics.

Suggested Citation

  • Takuji Nakashima & Hidemi Mutsuda & Taiga Kanehira & Makoto Tsubokura, 2020. "Fluid-Dynamic Force Measurement of Ahmed Model in Steady-State Cornering," Energies, MDPI, vol. 13(24), pages 1-20, December.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6592-:d:461910
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/24/6592/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/24/6592/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Dirk Wieser & Christian Navid Nayeri & Christian Oliver Paschereit, 2020. "Wake Structures and Surface Patterns of the DrivAer Notchback Car Model under Side Wind Conditions," Energies, MDPI, vol. 13(2), pages 1-18, January.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Janusz Ryszard Piechna & Krzysztof Kurec & Jakub Broniszewski & Michał Remer & Adam Piechna & Konrad Kamieniecki & Przemysław Bibik, 2022. "Influence of the Car Movable Aerodynamic Elements on Fast Road Car Cornering," Energies, MDPI, vol. 15(3), pages 1-28, January.
    2. Krzysztof Wiński & Adam Piechna, 2022. "Comprehensive CFD Aerodynamic Simulation of a Sport Motorcycle," Energies, MDPI, vol. 15(16), pages 1-27, August.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Yingchao Zhang & Jinji Li & Zijie Wang & Qiliang Wang & Hongyu Gong & Zhe Zhang, 2021. "Wake Flow Investigation on Notchback MIRA Model by PIV Experiments," Energies, MDPI, vol. 14(15), pages 1-21, July.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6592-:d:461910. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.