首页|连续弯段溢洪道糙条消能工整流特性试验研究

连续弯段溢洪道糙条消能工整流特性试验研究

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  • 国家科技期刊平台
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为探究糙条消能工在连续弯段溢洪道上导流效果影响因子排序和糙条导流特性,采取9因素3水平的正交试验设计方案进行物理模型试验,引入超高变异系数Cv对导流效果进行评价;对影响水流结构的因子进行量纲分析及多元回归处理,建立评价导流效果的多因素影响模型.结果表明:糙条布设角度和糙条高度分别对2个弯段中水流结构影响最大,这2个因素直接影响糙条平衡水面差、稳定流态效果的优劣.剔除影响较小的共用因素,得出糙条消能工最优导流布置方案;各类函数模型中最大拟合优度为0.822,拟合方程对实测值进行对比验证,二者相对误差范围在2.78％～7.15％之间.研究成果可为连续弯段溢洪道整流分析提供理论参考.
Experimental Study on Flow Rectification Characteristics of Rough Strip Energy Dissipator in Continuous Curved Spillway
The aim of this research is to investigate the factors affecting the diversion effect of rough strip energy dis-sipater on continuous curved spillway and its diversion characteristics.A physical model test was conducted using an orthogonal experimental design scheme involving nine factors and three levels.The ultra-high variation coefficient(Cv)is introduced to assess the diversion effect.Dimensional analysis and multiple regression analysis were per-formed to examine the factors impacting flow structure,and a multi-factor influence model for evaluating the diver-sion effect was established.The findings indicate that the angle and height of the rough strip significantly influence the flow structure in two bends,respectively,directly impacting the effectiveness of the rough strip in balancing wa-ter level differences and stabilizing flow patterns.By eliminating less influential common factors,the optimal diver-sion layout scheme for rough strip energy dissipator is determined.The maximum goodness of fit for various function-al models is 0.822.The fitting equation is used to compare and validate the measured values,yielding a relative er-ror of 2.78％to 7.15％.These research findings offer theoretical insights for analyzing and rectifying the flow in con-tinuous curved spillways.

rough strip energy dissipatorcontinuous curved spillwayultra-high variation coefficientorthogonal designmultiple regression analysis

马豪、牧振伟、樊帆、顾元皓

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新疆农业大学水利与土木工程学院,乌鲁木齐 830052

新疆农业大学新疆水利工程安全与水灾害防治重点实验室,乌鲁木齐 830052

新疆阜康抽水蓄能有限公司,乌鲁木齐 830000

糙条消能工 连续弯段溢洪道 超高变异系数 正交设计 多元回归分析

国家自然科学基金项目新疆水利工程安全与水灾害防治重点实验室开放课题项目

51769037ZDSYS-YJS-2022-07

2024

10.11988/ckyyb.20221318

长江科学院院报
长江科学院

长江科学院院报

CSTPCD北大核心
影响因子：0.618
ISSN：1001-5485
年,卷(期)：2024.41(3)
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