Comparison of theory and experiment in simulation of dam break in a rectangular channel with a sudden change in cross-sectional area

被引：0
作者：
V. V. Degtyarev
V. V. Ostapenko
O. A. Kovyrkina
A. V. Zolotykh
机构：
[1] Novosibirsk State Architecture and Civil Engineering University (Sibstrin) Novosibirsk,Lavrent’ev Institute of Hydrodynamics, Siberian Branch
[2] Russian Academy of Sciences,undefined
来源：
Journal of Applied Mechanics and Technical Physics | 2014年 / 55卷
关键词：
shallow-water theory; sudden change in cross-sectional area; dam-break problem; self-similar solutions; laboratory experiment;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper, presents the results of comparison of theory and laboratory experiment for simulation of the wavy flows resulting from dam break on a sudden change in the rectangular cross-sectional area of a channel whose width is greater upstream than downstream. Exact self-similar solutions containing an heuristic parameter dependent on the total energy of the flow lost on the sudden change in cross-sectional area were obtained using the first approximation of the spatially one-dimensional theory of shallow water. It is shown that theoretical solutions agree quite well with the results laboratory experiments on the possible types of waves, the their propagation velocity, and asymptotic depth values behind their fronts.
引用
收藏
页码：999 / 1004
页数：5
相关论文
共 16 条
  • [1] Dressler R F(1954)Comparison of Theories and Experiments for the Hydraulic Dam-Break Wave Int. Assoc. Sci. Hydrol. 3 319-328
  • [2] Stansby P K(1998)The Initial Stages of Dam-Break Flow J. Fluid Mech. 374 407-424
  • [3] Chegini A(2005)The Initial Stage of Generation of the Dam-Break Wave Dokl. Akad. Nauk 401 1-4
  • [4] Barnes T C(2003)Dam-Break Flow over a Bottom Step Prikl. Mekh. Tekh. Fiz. 44 51-63
  • [5] Bukreev V I(2003)Dam-Break Flow over a Bottom Drop Prikl. Mekh. Tekh. Fiz. 44 107-122
  • [6] Gusev A V(2004)Open Channel Waves that Form after the Removal of a Screen before Uneven Shelf-Type Bed Vodn. Res. 31 540-545
  • [7] Ostapenko V V(2012)Experimental Investigation of Reservoir Geometry Effect on Dam-Break Flow J. Hydraulic Res. 50 376-387
  • [8] Ostapenko V V(2012)Dam-Break Flows over Mobile Beds: Experiments and Benchmark Tests for Numerical Models J. Hydraulic Res. 50 364-375
  • [9] Bukreev V I(2012)Dam-Break Flows at a Jump in the Width of a Rectangular Channel Prikl. Mekh. Tekh. Fiz. 53 55-66
  • [10] Gusev A V(undefined)undefined undefined undefined undefined-undefined
12