Spattering Behavior Induced by Cavitation Bubble Collapsing Nearby Gas-Liquid Interface

• 資料種別: 記事
• タイトル: Spattering Behavior Induced by Cavitation Bubble Collapsing Nearby Gas-Liquid Interface
• 著者・編者: Hiroyuki KAWASHIMA; Takuma KUROSAWA; Makoto TESHIGAWARA; Takashi NAOE; Nobuatsu TANAKA; Masatoshi FUTAKAWA; Hiroyuki KOGAWA
• 著者標目: Hiroyuki KAWASHIMA; Takuma KUROSAWA; Makoto TESHIGAWARA; Takashi NAOE; Nobuatsu TANAKA; Masatoshi FUTAKAWA; Hiroyuki KOGAWA
• 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: 43-48
• 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: Cavitation; Bubble collapse; High-speed photography; Spark discharge; Gas-liquid interface
• 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）: 032335297; http://id.ndl.go.jp/bib/032335297
• 整理区分コード: 632

• 要約等: <p>Laser cutting is expected to reduce the volume of radioactive substances based on their radioactive levels. The laser has the advantage of being able to access remotely (non-contact) substances in high-level radiation environments. The scattering of radioactive dust, such as fumes and spatter, generated throughout the laser cutting process, is a major issue faced when cutting highly radioactive substances. One driving force of the spatter could be collapse of the cavitation bubble which is caused by rapid thermal loading due to laser irradiation. To elucidate the spattering mechanism, a spark discharge in water was used to generate cavitation bubble. The growth and collapse behaviors influenced by the interaction between a free surface and bubble resulting in the spattering phenomena are observed by using an ultra-high-speed video camera. Numerical simulations also were performed. The spatter height increased as the distance between the bubble and the free surface decreased and the qualitative trend observed was described numerically using simulations.</p>
• DOI: 10.11395/aem.7.0_43
• 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>Laser cutting is expected to reduce the volume of radioactive substances based on their radioactive levels. The laser has the advantage of being able to access remotely (non-contact) substances in high-level radiation environments. The scattering of radioactive dust, such as fumes and spatter, generated throughout the laser cutting process, is a major issue faced when cutting highly radioactive substances. One driving force of the spatter could be collapse of the cavitation bubble which is caused by rapid thermal loading due to laser irradiation. To elucidate the spattering mechanism, a spark discharge in water was used to generate cavitation bubble. The growth and collapse behaviors influenced by the interaction between a free surface and bubble resulting in the spattering phenomena are observed by using an ultra-high-speed video camera. Numerical simulations also were performed. The spatter height increased as the distance between the bubble and the free surface decreased and the qualitative trend observed was described numerically using simulations.</p>
• DOI: 10.11395/aem.7.0_43; https://doi.org/10.11395/aem.7.0_43
• 関連情報（URI）: http://id.ndl.go.jp/bib/032335297; https://ndlsearch.ndl.go.jp/books/R000000004-I032335297
• 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）: 032335297; http://id.ndl.go.jp/bib/032335297