Numerical Study on Secondary Undulation in Urauchi Bay at Kami-Koshiki Island

• SAITA Tomonori

  Kagoshima University

• ASANO Toshiyuki

  Kagoshima University

• MATSUTAKE Wataru

  Kagoshima University

• SHINTO Yusuke

  Kagoshima University

Bibliographic Information

Other Title

• 数値計算による上甑島浦内湾の副振動特性の検討

Abstract

Secondary undulations locally called “Abiki” are frequently observed in Urauch Bay at Koshiki Islands. To take countermeasures against the secondary undulations,it is important to understand amplifying characteristics of Urauch Bay under various conditions. In this study,responses of Urauch Bay to several factors affecting amplification of secondary undulations were evaluated by numerical analyses. As the result,it is clarified that amplification factor depends on not only a period of incident waves but also amplitude or a composite effect of those. In addition,change of depth due to a tide and tidal current near straits at the mouth of Urauch Bay have affects on amplification factor of Urauch Bay.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 69 (2), I_156-I_160, 2013

  Japan Society of Civil Engineers

Keywords

• long-period wave
• secondary undulation
• amplification factor

Details

• CRID: 1390282680296178816
• NII Article ID: 130004551052
• DOI: 10.2208/kaigan.69.i_156
• ISSN: 18838944
• ISSN: 18842399
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed