Hydrodynamic Characteristics of Azalea Flowers after Falling on the Ground

• 資料種別: 記事
• タイトル: Hydrodynamic Characteristics of Azalea Flowers after Falling on the Ground
• 著者・編者: Kazunori HOSOTANI
• 著者標目: Kazunori HOSOTANI
• タイトル（掲載誌）: Advanced experimental mechanics / Editorial board for advanced experimental mechanics [編]
• 巻号年月日等（掲載誌）: 7:2022.8
• 掲載巻: 7
• 掲載ページ: 27-33
• 掲載年月日（W3CDTF）: 2022-08
• ISSN（掲載誌）: 2189-4752
• ISSN-L（掲載誌）: 2189-4752
• 出版事項（掲載誌）: Niigata : The Japanese Society for Experimental Mechanics
• 出版地（国名コード）: JP
• 本文の言語コード: eng
• 件名標目: Drag coefficient; Flow visualization; Wind field; Azalea; Rhododendron
• NDLC: ZM17
• 対象利用者: 一般
• 所蔵機関: 国立国会図書館
• 請求記号: Z63-D560
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 032335269; http://id.ndl.go.jp/bib/032335269
• 整理区分コード: 632

• 要約等: <p>Several researchers have investigated the flow characteristics that plants have acquired through evolution, such as seeds that can be transferred far by the wind. However, there are only a few discussions of the hydrodynamic characteristics of flowers after they fall on the ground. This study focused on the unique phenomenon of light azaleas that remain on the ground without being blown away by the wind. It experimentally evaluated the hydrodynamic forces on the azaleas (<i>Rhododendron pulchrum </i>and <i>Rhododendron indicum</i>) and three-dimensional printed flower models. Observations on the symphonic flowers of azalea revealed that these 5-cm-big flowers lie in different directions after they fall. However, they all turn in an upside down posture at once when the wind blows. Force measurement test results show that the drag characteristics of the azalea shaped flowers are significantly different from those of other flower models. The survival strategy implications of the flowers that are not blown away are beyond the scope of this paper; however, this unique behavior has potential applications in the engineering field.<i><b> </b></i></p>
• DOI: 10.11395/aem.7.0_27
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• 要約等: <p>Several researchers have investigated the flow characteristics that plants have acquired through evolution, such as seeds that can be transferred far by the wind. However, there are only a few discussions of the hydrodynamic characteristics of flowers after they fall on the ground. This study focused on the unique phenomenon of light azaleas that remain on the ground without being blown away by the wind. It experimentally evaluated the hydrodynamic forces on the azaleas (<i>Rhododendron pulchrum </i>and <i>Rhododendron indicum</i>) and three-dimensional printed flower models. Observations on the symphonic flowers of azalea revealed that these 5-cm-big flowers lie in different directions after they fall. However, they all turn in an upside down posture at once when the wind blows. Force measurement test results show that the drag characteristics of the azalea shaped flowers are significantly different from those of other flower models. The survival strategy implications of the flowers that are not blown away are beyond the scope of this paper; however, this unique behavior has potential applications in the engineering field.<i><b> </b></i></p>
• DOI: 10.11395/aem.7.0_27; https://doi.org/10.11395/aem.7.0_27
• 関連情報（URI）: http://id.ndl.go.jp/bib/032335269; https://ndlsearch.ndl.go.jp/books/R000000004-I032335269
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 032335269; http://id.ndl.go.jp/bib/032335269