Discharge through a Permeable Rubble Mound Weir
Discharge through a Permeable Rubble Mound Weir
复制标题
通过可渗透的碎石堆堰排放
DOI：
10.1061/(asce)0733-9429(2005)131:1(1
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发表时间：
2005
影响因子：
2.4
通讯作者：
M. Haneda
中科院分区：
文献类型：
--
作者：
K. Michioku;S. Maeno;Takaaki Furusawa;M. Haneda
从理论上和实验上研究了碎石堰的流体动力学。这种类型的堰被认为是环保的，因为它的渗透性允许物质和水生生物纵向通过。通过对流过堰的稳态非均匀流进行一维分析，将流量描述为相关参数的函数，如堰上下游流深、孔隙率、碎石堆粒径、堰长度等。通过室内实验确定了分析模型中包含的经验系数。将放电理论解与实验数据进行比较，验证了分析结果。经证实，对于各种流动条件，理论与实验之间的一致性是令人满意的。本研究使得将碎石堆堰作为排放控制系统实际应用成为可能。
The hydrodynamics of a rubble-mound weir are theoretically and experimentally examined. This type of weir is considered to be environmentally friendly, since its permeability allows substances and aquatic life to pass through longitudinally. By performing a one-dimensional analysis on a steady nonuniform flow through the weir, discharge is described as a function of related parameters, such as flow depths on the up- and downstream sides of the weir, porosity, and grain diameter of the rubble mound, weir length, etc. A laboratory experiment is carried out to determine the empirical coefficients included in the analytical model. The theoretical solution of the discharge is compared with the experimental data to verify the analysis. It is confirmed that agreement between theory and experiment is satisfactory for a wide range of flow conditions. The present study makes it possible to apply the rubble mound weir for practical use as a discharge control system.