鸭河口水库溢洪道泄流能力研究

根据鸭河口水库溢洪道改建方案,由于堰顶长度增加(比常规实用堰多了一段引渠),其泄流能力不能按一般实用堰进行计算。采用Fluent流体计算软件对溢洪道的泄流能力进行了数学模型分析,并用物理模型对其进行了检验。结果表明:理论计算采用的公式是用于标准堰型时的计算公式,难以满足特殊堰体泄流能力计算的需要;数学模型对边界条件等难以完全模拟;物理模型最能反映真实情况。从水库安全出发,以物理模型试验值作为水库调洪演算的依据;其研究数据对类似工程堰型泄流能力分析具有参考价值。

Study on spillway discharge capacity of Yahekou Reservoir

According to the spillway reconstruction scheme of Yahekou Reservoir,the length of weir crest is increased(a section of approach channel is added compared with conventional practical weir),therefore the discharge capacity can't be calculated by common theoretical calculation.We perform calculation for discharge capacity by Fluent Flow Calculation Software and the results are verified by physical model.It is shown that the formula adopted in theoretical calculation is suitable for standard weir type,however,...