大型淹没齿型丁坝水流力计算方法与敏感性因素分析研究  

Study on Calculation Method of Flow Force and Sensitivity Factors of Large Submerged Groin with Teeth

作　　者：刘辉 闫杰超 Liu Hui;Yan Jiechao

机构地区：[1]湖北省交通规划设计院股份有限公司 [2]南京水利科学研究院 [3]中电建江苏勘测设计研究院有限公司

出　　处：《交通与港航》2025年第1期79-86,共8页Communication & Shipping

基　　金：国家重点研发计划(2021YFB2600700);国家自然科学基金(51779149)。

摘　　要：为研究一种大型混凝土淹没齿型丁坝构件,通过CFD软件建立了大型淹没齿型丁坝三维水动力数学模型,数值模型采用试验实测资料开展验证工作。对大型淹没齿型丁坝水流力以及水流力系数影响参数敏感性进行分析,并通过分析不同影响参数与水流力系数之间响应关系,采用SPSS分析软件对大型淹没齿型丁坝水流力系数进行多元函数拟合,得到大型淹没齿型丁坝水流力预测函数。同时,得到影响水流力系数各敏感参数与大型淹没齿型丁坝水流力系数之间的变化规律。经确定性分析验证,大型淹没齿型丁坝水流力数值预测函数能够较好地对模拟值与实测值进行预测,研究成果能够为实际工程提供科学的依据与指导。In order to study a large concrete submerged groin with teeth,in this paper,a 3D hydrodynamic mathematical model of a large submerged groin with teeth is built by CFD software,and the numerical model is verified by experimental data.The sensitivity of the flow force of a large submerged groin with teeth and the influence parameters of the flow force coefficient are analyzed.The multifunction fitting of the flow force coefficient of a large submerged groin with teeth is carried out by SPSS analysis software,and the flow force prediction function of a large submerged groin with teeth is obtained.At the same time,the variation rule between the sensitive parameters affecting the flow force coefficient and the flow force coefficient of a large submerged groin with teeth is obtained.The deterministic analysis proves that the numerical prediction function of flow force of large submerged groin can predict the simulated and measured values well,and the research results can provide scientific basis and guidance for practical engineering.

关 键 词：数值模拟 物理模型试验 丁坝水流力 水流力系数 敏感性 

分 类 号：TV863[水利工程—水利水电工程] TV135