Estimations of Unsteady Wave Fields of Ships Advancing in Waves by a Time-Domain Hybrid Method

• Kataoka Shiro

  (株) 新来島どっく

• Iwashita Hidetsugu

  広島大学大学院工学研究科

Bibliographic Information

Other Title

• 波浪中を航走する船の非定常波動場の時間領域ハイブリッド法による推定
• ハロウ チュウ オ コウソウ スル フネ ノ ヒテイジョウ ハドウバ ノ ジカン リョウイキ ハイブリッドホウ ニ ヨル スイテイ

Abstract

A time-domain hybrid method developed by authors is applied to estimate the unsteady wave field of ships advancing in waves. The method is combining the Rankine panel method applied in the near field and the Green function method applied in the far field of ships, and it makes possible to satisfy the radiation condition exactly at least from theoretical point of view. The method is, therefore, the mostly expected among many numerical methods to be reliable on the satisfaction of the radiation condition even in the low-frequency region where the κ₂ wave system propagates upstream of ships.<br>The wave elevation is used as a typical physical-value which represents the wave field around ships. The computed wave elevation by the present method is compared with experimental results and with another numerical result by the Rankine panel method. Through the comparison, it is confirmed that the present hybrid method can estimate the wave elevation with high accuracy and applicable to the low-frequency region without losing accuracy.

Journal

• Journal of the Society of Naval Architects of Japan

  Journal of the Society of Naval Architects of Japan 2004 (196), 139-150, 2004

  The Japan Society of Naval Architects and Ocean Engineers

Details

• CRID: 1390001204095367168
• NII Article ID: 10014498269
• NII Book ID: AN00194094
• DOI: 10.2534/jjasnaoe1968.2004.196_139
• ISSN: 18842070
• ISSN: 05148499
• NDL BIB ID: 7265251
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7265251
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed