进水口前立轴旋涡的试验研究  

Experiment study of vertical vortex at hydraulic intakes

作　　者：陈宗娜[1] 伍超[1] 陈云良[1] 叶茂[1] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,成都610065

出　　处：《西南民族大学学报（自然科学版）》2006年第4期799-804,共6页Journal of Southwest Minzu University(Natural Science Edition)

基　　金：国家自然科学基金(50379030);高等学校博士学科点专项科研基金(20020610016)

摘　　要：通过分析旋涡形成的影响因素,建立了立轴旋涡的形成和类型,与佛汝德数、环量数和淹没水深三个参数的关系式.自制了能改变进水口尺寸、型式、边界条件和水流条件等影响立轴旋涡的实验装置.分析测得的试验结果,对底部和侧部两种进水口提供不同的系数,有利于针对实际工程中进水口的具体形式,作为估算临界淹没水深的参考.By analyzing the impact factors of the vertical vortex,the relational expression between the formed type of vertical vortex and the intake Froude number,the circulation number and the submergence depth are founded.The experimental apparatus is made by ourselves,which can conveniently change the conditions that might affect the formation of vertical vortex.They include the size and type of intake,boundary condition and initial flow condition etc.Analyzing the experimental data measured,different coefficient is provided relating to the bottom and side intakes,which can be the reference of specific form intakes in reality project.

关 键 词：立轴旋涡 模型实验 临界淹没水深 

分 类 号：TV131[水利工程—水力学及河流动力学]