库区河道阻力的初步研究  

Preliminary Research on Reservoir-Area River Resistance

作　　者：丁新求[1] 孙东坡 童海鸿[1] 

机构地区：[1]长沙电力学院,湖南长沙410015 [2]华北水电学院,河南郑州450008

出　　处：《中国农村水利水电》2003年第10期68-70,共3页China Rural Water and Hydropower

摘　　要：在实测资料的基础上 ,对水库库区三角洲河道水力几何形态的特征 ,沙纹、沙垅的消长 ,水流阻力的变化以及水温对水流阻力的影响等进行了初步分析。在前人研究的基础上 ,分别建立了沙垅阻力、总阻力、冰期阻力与水流强度间的关系。通过对某水库实测河床形态与阻力资料的检验 。On the basis of observation data, the characte ri stics of hydraulic geometric form of delta watercourse of reservoir area, disapp earance of sand grain, sand ridge, variation of hydraulic resistance and effects of water temperature on water flow resistance are analyzed preliminarily. Based on the previous research results related, the relationships between sand-ridge resistance, total resistance, ice-period resistance and water flow intensity are established respectively. Through testing of a reservoir riverbed form and resi stance data observed, these relationships are validated satisfactorily.

关 键 词：河流动力学 水流阻力 库区 河道阻力 水流强度 水库 河床形态 

分 类 号：TV133[水利工程—水力学及河流动力学]