FLOOD SIMULATIONS IN THE OTOTSU RIVER WITH VEGETATIONS BY A TWO-DIMENSIONAL NUMERICAL MODEL

• SHIGE-EDA Mirei

  九州工業大学工学部建設社会工学科

• ASAI Koji

  山口大学工学部社会建設工学科

• SAKAMOTO Hiroshi

  株式会社建設技術研究所九州支社河川部

• NAGATA Shigeki

  国土交通省九州地方整備局大分河川国道事務所

• AKIYAMA Juichiro

  九州工業大学工学部建設社会工学科

• HIGUCHI Naoki

  九州工業大学大学院建設社会工学専攻

• SHIGEOKA Hiromi

  九州工業大学工学部建設社会工学科

• TOKUNAGA Tomohiro

  株式会社建設技術研究所九州支社河川部

Bibliographic Information

Other Title

• 樹木群を考慮した平面2次元数値モデルによる乙津川の洪水流解析

Abstract

Two-dimensional numerical simulations of flood flows in the Ototsu River were performed to examine the effects of the vegetations on the flood flows. A two-dimensional numerical model, based on finitevolume method with unstructured grid system and flux-difference splitting, was used for the simulations. The model was verified through the observation data of the water level in the flooding. The effects of the vegetations on the behavior of flood flows at the design flood discharge were also examined based on the numerical results. It shows that the 2D numerical model is useful in the examination of the effects of the vegetations on the flood flow behavior.

Journal

• PROCEEDINGS OF HYDRAULIC ENGINEERING

  PROCEEDINGS OF HYDRAULIC ENGINEERING 50 1171-1176, 2006

  Japan Society of Civil Engineers

Keywords

• flood flow
• the Ototsu River
• vegetations
• two-dimensional numerical simulation

Details

• CRID: 1390282680148590848
• NII Article ID: 130004043766
• DOI: 10.2208/prohe.50.1171
• ISSN: 18849172
• ISSN: 09167374
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed