1999年
エッジの切落しによる角柱の抗力軽減と後流について
日本航空宇宙学会論文集
- ,
- ,
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- 巻
- 47
- 号
- 550
- 開始ページ
- 403
- 終了ページ
- 410
- 記述言語
- 日本語
- 掲載種別
- DOI
- 10.2322/jjsass.47.403
- 出版者・発行元
- 一般社団法人 日本航空宇宙学会
The purpose of the present paper is to examine experimentally relationship between the drag reduction of the two-dimensional square prism body and its near wake due to the cutout of its front edges. The mean velocity and the velocity fluctuation are measured by the hot wire anemometer with I type and X type probes. The present experiment shows: (1) There are typical three patterns of the velocity fluctuation against the cutout dimensions, which are almost the same as of the drag reduction shown in previous work. (2) The length of the dead water region of the near wake around the square prism with the cutout is related with the profile of the velocity fluctuation. (3) The decrease of total velocity fluctuation energy on the cross-area of the near wake reduces the drag coefficient of the square prism with the cutout.
- リンク情報
- ID情報
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- DOI : 10.2322/jjsass.47.403
- ISSN : 1344-6460
- CiNii Articles ID : 10002723497