概化弯道段潮汐模型系统设计与制作  

Design and construction for generalized model of tidal river bend

作　　者：马健[1,2] 孙东坡[3] 曹卫平[4] 蒋承杰[5] 

机构地区：[1]浙江大学土木工程学系,浙江杭州310027 [2]台州市公路管理处,浙江台州318000 [3]华北水利水电学院水利工程学系,河南郑州450008 [4]西安建筑科技大学土木工程学院,陕西西安710055 [5]浙江建设职业技术学院城市建设工程系,浙江杭州311231

出　　处：《海洋工程》2009年第2期104-109,共6页The Ocean Engineering

摘　　要：根据典型弯曲型河口段的宽浅边界形态、水力条件及潮汐特征,依据相似理论确定模型的基本几何及水力参数。分析了河工模型的最大允许变率,借助重力和紊动阻力相似准则确定模型的各项控制比尺。模型由上游延伸段、河道试验段与下游潮汐池组成。采用W形波纹凹槽方式加糙,使模型糙率达到了试验要求。实测资料验证显示了概化模型的合理性。Based on broad and shallow configuration, hydraulic conditions and tidal characters of a typical river bend, and according to simi- larity theory, basic geometrical and hydraulic coefficients are determined. The maximum permitted distorted ratio of model is analysed, and by following the gravity and resistance similarity criterion, the main similarity values of the distorted model are selected. The model is composed of upriver extended reach, experiment reach and downfiver tidal generating sink. The rippled groove with W shape is adopted so that resistance similarity is satisfied. The reasonableness of the generalized model is verified by using observed data.

关 键 词：潮汐弯道段 概化模型 复式断面 控制系统 生潮设备 

分 类 号：TV149[水利工程—水力学及河流动力学]