ANALYSIS OF THE FLOW IN UNDULAR AND HYDRAULIC JUMP STILLING BASINS USING NON-HYDROSTATIC QUASI-THREE DIMENSIONAL MODEL CONSIDERING FLOW EQUATIONS ON BOUNDARY SURFACES

• TAKEMURA Yoshiharu

  中央大学研究開発機構

• FUKUOKA Shoji

  中央大学研究開発機構

Bibliographic Information

Other Title

• 波状跳水・完全跳水及びその減勢区間における境界面（水面・底面）上の流れの方程式を用いた非静水圧準三次元解析（Q3D-FEBS）

Abstract

 This paper aims at development of a non-hydrostatic quasi-three dimensional model for the flow in undular and hydraulic stilling basins. It is challenging for the depth-integrated model to calculate the flow separation at boundary surfaces (water surface and bed surface). To solve this problem, a non-hydrostatic quasi-three dimensional model considering flow equations on boundary surfaces (Q3D-FEBS) was derived. Q3D-FEBS was applied to the undular and hydraulic jump experiments. The calculation results are in good agreement with the observation data such as water surface profiles and velocity distributions of the undular and hydraulic jump. Moreover, it was showed that Q3D-FEBS can calculate the breaking process of the undular jump and formation of the surface roller. Finally, the applicability of Q3D-FEBS for the flow in hydraulic jump stilling basins was discussed against observation data of a large scale hydraulic model experiment.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 75 (1), 61-80, 2019

  Japan Society of Civil Engineers

Keywords

• hydraulic jump
• undular jump
• quasi-3D model
• stiling basins
• baffle blocks

Details

• CRID: 1390564238106738176
• NII Article ID: 130007681752
• DOI: 10.2208/jscejhe.75.61
• ISSN: 2185467X
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/75/1/75_61/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed