EXPERIMENTAL STUDY ON VERTICAL VELOCITY DISTRIBUTION AROUND THE OPENING OF ARTIFICIAL REEFS

• OSANAI Kazuyuki

  八戸高専建設環境工学科

• MINAMI Masato

  八戸高専建設環境工学科

Bibliographic Information

Other Title

• 人工リーフ開口部の鉛直断面流速分布に関する実験的研究

Abstract

Artificial reefs have been constructed for protecting coast form erosion and for replacing detached breakwaters. The constrictions cause topographical change around them. Main sediment transport around an opening is bed load, but suspended sediment cannot be ignored. So the experiment using 3-ADV (Acoustic Doppler Velocity Meter) was carried out to measure the vertical mean velocity distribution at a center of opening.<BR>The result of experiment shows that the return flows direction was upward at onshore, and downward at an opening. The return flows turn alternately up and down. The amplitude of mean horizontal velocity was the maximum at the bottom. Closing to water surface, the amplitudes of velocity were getting to small.

Journal

• PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN

  PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN 19 213-218, 2003

  Japan Society of Civil Engineers

Keywords

• Artificial Reefs
• Vertical Current
• 3-ADV
• Topography Change

Details

• CRID: 1390282680181552896
• NII Article ID: 130003950134
• DOI: 10.2208/prooe.19.213
• ISSN: 18848265
• ISSN: 09127348
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed