著者
伊藤 慎一郎
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集 B編 (ISSN:03875016)
巻号頁・発行日
vol.73, no.734, pp.1975-1980, 2007-10-25 (Released:2011-03-03)
参考文献数
7
被引用文献数
2 2

A slipstream is a region of reduced pressure or even suction (negative pressure) formed behind an object in downstream. Even in a marathon event, it is possible to use preceding runners as a shield to reduce aerodynamic drag and to carry out physical strength presservation. These preceding runners are called pacemakers, who maintain a lap time of an main runner. In this research, to confirm the effect of pacemakers' slipstream and to find a suitable arrangement of pacemakers, drag of the main runner was measured using 3 component load cells in a wind tunnel. And the factor of drag reduction was studied by grasping the flow field using a smoke tunnel. Numerical calculations were also carried out in a real Reynolds number and compared with experiments concerning drag and flow field.

言及状況

外部データベース (DOI)

Twitter (2 users, 2 posts, 1 favorites)

@kyuta6ro 人間にかかる力としては単独のランナーが正面から風を受けるときの抗力係数C_Dは、0.97程度らしいので風から受ける力Dは D=0.5ρ*(相対風速)²*(人間の正面からの投影面積)*C_D で見積もることができ… https://t.co/6Ukt2HPnu5
@DanBiggles22 @Scienceofsport 2:10 marathon pace, I believe, but my Japanese is a little rusty: https://t.co/VUTrMdQEq8

収集済み URL リスト