FIRST-AND SECOND-ORDER ACCURATE 2D NUMERICAL MODEL BASED ON UNSTRUCTURED FINITE-VOLUME METHOD FOR FLOOD FLOWS

DOI Web Site Web Site 4 Citations 32 References
  • AKIYAMA Juichiro
    社団法人 土木学会 九州工業大学 工学部建設社会工学科
  • SHIGEDA Mirei
    社団法人 土木学会 州工業大学大学院 工学研究科博士後期課程
  • URA Masaru
    社団法人 土木学会 九州工業大学 工学部建設社会工学科

Bibliographic Information

Other Title
  • 非構造格子を用いた有限体積法に基づく1次および2次精度平面2次元洪水流数値モデル
  • ヒコウゾウ ゴウシ オ モチイタ ユウゲン タイセキホウ ニ モトヅク 1ジ オヨビ 2ジ セイド ヘイメン 2ジゲン コウズイリュウ スウチ モデル

Search this article

Abstract

First-and second-order accurate 2D numerical models based on finite-volume method for flood flows are developed. The models employ unstructured grids so as to handle a complicated floodplain geometries. The first-order accurate model uses FDS technique. The second-order accuracy, in space and time, is obtained by using MUSCL technique and predictor-corrector time integral sequence in the first-order model. The models are verified against experimental data of dam-break flow in converging-diverging channel as well as 2D flood wave due to partial dam-break under dry-bed condition. The first-order accurate model may be preferred for practical applications when computation time and overall accuracy are considered.

Journal

Citations (4)*help

See more

References(32)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top