Role of Air Flow Separation for Self-regulation Mechanism of Wind Waves without Wave Breaking

• 安田 孝志

  岐阜大学工学部土木工学科

• 陸田 秀実

  岐阜大学工学部土木工学科

• 水谷 夏樹

  岐阜大学大学院工学研究科

• 榊原 幸雄

  豊田工業高等専門学校環境都市工学科

Bibliographic Information

Other Title

• 複合型砕波の運動諸量特性について
• 砕波を伴わない風波の自己調整機能に対する気流の剥離の役割について
• サイハ オ トモナワナイ フウハ ノ ジコ チョウセイ キノウ ニ タイスル キリュウ ノ ハクリ ノ ヤクワリ ニ ツイテ

Abstract

Occurrence frequency of air flow separations over wind waves was measured to investigate relationship between the air flow separation and a drag coefficient. The occurrence frequencies converged to a value of 10% with windsea Reynolds number, R_B, ranging between 200 and 1000. In that condition, the drag coefficients also have a constant value. Under moderate wind speed and short fetch condition, the air flow separation controls momentum transfer from air side to water side without wave breaking. As a result, despite growth of wind speed, wave breaking probability and wave steepness are still kept constant. This process is considered as a self-regulation mechanism of wind waves without wave breaking.

Journal

• PROCEEDINGS OF COASTAL ENGINEERING, JSCE

  PROCEEDINGS OF COASTAL ENGINEERING, JSCE 42 56-60, 1995

  Japan Society of Civil Engineers

Keywords

• wind wave
• air flow separation
• drag coefficient
• self-regulation mechanisum

Details

• CRID: 1390001204548099840
• NII Article ID: 130004550539
• NII Article ID: 130003806685
• NII Book ID: AA12508551
• DOI: 10.2208/proce1989.42.56
• DOI: 10.2208/kaigan.67.i_56
• ISSN: 18848222
• ISSN: 18838944
• ISSN: 09167897
• ISSN: 18842399
• NDL BIB ID: 023373196
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023373196
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed