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Summary & Details

A Study on Quantitative Evaluation Methods for Assessing the Impact of Individual Vortical Flows around a Vehicle on Aerodynamic Drag

車両周りの各渦流れが空気抵抗に与える影響の定量的評価手法の検討

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20265175

Paper/Info type: Proceedings (Spring)

No.41-26

Pages: 1-6(Total 6 p)

Date of publication: May 2026

Publisher: JSAE

Language: Japanese

Event: 2026 JSAE Annual Congress (Spring)

Detailed Information

Author(J)	1) 野中大雅, 2) 中島卓司, 3) 中村優佑, 4) 今川翔平, 5) 清水圭吾, 6) 陸田秀実
Author(E)	1) Taiga Nonaka, 2) Takuji Nakashima, 3) Yusuke Nakamura, 4) Shohei Imagawa, 5) Keigo Shimizu, 6) Hidemi Mutsuda
Affiliation(J)	1) 広島大学, 2) 広島大学, 3) マツダ, 4) 広島大学, 5) マツダ, 6) 広島大学
Affiliation(E)	1) Hiroshima University, 2) Hiroshima University, 3) Mazda, 4) Hiroshima University, 5) Mazda, 6) Hiroshima University
Abstract(J)	車両空力設計では，走行中の車両周りに生じる渦流れの中から空気抵抗への影響度が大きい渦を選別して対策することが望まれる．本研究では，既存の渦同定手法と縦渦に起因する抵抗の評価手法を組み合わせることで，個々の渦による空気抵抗への寄与を定量的に評価する手法を構築し，その性能について検討した． Translation
Abstract(E)	In vehicle aerodynamic design, it is desirable to identify and target vortices that have a significant influence on aerodynamic drag among the many vortical flows generated around a moving vehicle. This study combines existing vortex identification techniques with a method for evaluating drag induced by longitudinal vortices. A technique for quantitatively assessing the drag contribution of individual vortices is developed, and its performance is examined.

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