移動床数値実験水路を流下する石礫粒子群の三次元運動

• 福田 朝生

  中央大学大学院理工学研究科

• 福岡 捷二

  中央大学研究開発機構教授

• 内田 龍彦

  中央大学研究開発機構教授

書誌事項

タイトル別名

• THREE-DIMENSIONAL MOVEMENT OF GRAVELS AND STONES IN NUMERICAL CHANNELS WITH MOVABLE BED

抄録

Estimation of sediment transport rate and bed variation in stony-bed rivers needs to understand the effects of stones sizes and shapes in streams. However, measurements of forces acting on sediment particles in active are difficult, especially for rapid stony-bed rivers. To investigate the dynamic mechanism of stones moving in streams, we have developed a numerical movable bed channel in which three-dimensional motion of each shaped-stone is calculated, respectively. The dynamic interaction between stones motions and hydrodynamic forces on movable bed surface in numerical experiment is investigated. It is demonstrated that large stones form static stone clusters. Stones clusters have an important mechanism to stabilize stony-bed surface against hydrodynamic forces of flows.

収録刊行物

• 土木学会論文集Ｂ１（水工学）

  土木学会論文集Ｂ１（水工学） 69 (4), I_1051-I_1056, 2013

  公益社団法人 土木学会

キーワード

• 流砂
• 三次元解析
• 可視化
• 石礫形状
• 大礫集団

詳細情報

• CRID: 1390001205352220672
• NII論文ID: 130004558108
• DOI: 10.2208/jscejhe.69.i_1051
• ISSN: 2185467X
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可