Numerical and experimental investigation of three-dimensionality in the dam-break flow against a vertical wall

Mohamed M. Kamra, Nik Mohd, Cheng Liu, Sueyoshi Makoto, Changhong Hu

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

The three-dimensionality extent of the dam break flow over a vertical wall is investigated numerically and experimentally in this paper. The numerical method is based on Reynolds averaged Navier-Stokes (RANS) equation that describes the three-dimensional incompressible turbulent flow. The free surface is captured by using the unstructured multi-dimensional interface capturing (UMTHINC) scheme. The equations are discretized on 2-D and 3-D unstructured grids using finite volume method. The numerical simulations are compared with newly conducted experiment with emphasis on the effect of three-dimensionality on both free surface and impact pressure. The comparison between the numerical and experimental results shows good agreement. Furthermore, the results also show that 3-D motion of the flow originates at the moment of impact at the lower corners of the impact wall and propagates to the inner region as time advances. The origin of the three-dimensionality is found to be the turbulence development as well as the relative velocity between the side wall region and the inner region of the wave front at the moment of impact.

元の言語英語
ページ(範囲)682-693
ページ数12
ジャーナルJournal of Hydrodynamics
30
発行部数4
DOI
出版物ステータス出版済み - 8 1 2018

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Dam Break
dams
Numerical Investigation
Experimental Investigation
Dams
Dimensionality
Vertical
Finite volume method
Free Surface
Navier Stokes equations
Turbulent flow
3D
moments
impact loads
Numerical methods
Turbulence
finite volume method
wave fronts
Moment
turbulent flow

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Numerical and experimental investigation of three-dimensionality in the dam-break flow against a vertical wall. / Kamra, Mohamed M.; Mohd, Nik; Liu, Cheng; Makoto, Sueyoshi; Hu, Changhong.

:: Journal of Hydrodynamics, 巻 30, 番号 4, 01.08.2018, p. 682-693.

研究成果: ジャーナルへの寄稿記事

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AU - Hu, Changhong

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