异型挑流鼻坎三维设计及整体泄流模拟研究  

Research on Three-Dimensional Design for Heterotypic Flip Bucket and Flood Releasing Simulation

作　　者：刘飞鹏[1] 龚爱民[2] 陈春武[1] 郝蓓蓓 

机构地区：[1]国家林业局昆明勘察设计院,云南昆明650216 [2]云南农业大学水利学院,云南昆明650201 [3]绵阳市水利规划设计研究院,四川绵阳621000

出　　处：《人民黄河》2017年第5期104-108,共5页Yellow River

基　　金：水利部公益性行业科研专项(201301033)

摘　　要：水利工程因地形地质条件多变,其异型体常难以设计。借助Auto-Revit的BIM三维建模技术,对传统挑流鼻坎的底板设置左右高差,对底板和边墙三维联动中的偏转角θ_1、右挑高夹角θ_2、挑流鼻坎的挑角θ_3进行优化设计,通过数值模拟进行方案比选,最优挑流鼻坎用三维函数表示。对某水库溢洪道挑流鼻坎的模拟结果表明,θ_1=19.82°、θ_2=arctan(1/12)、θ_3=25°的右挑高0.5 m方案的挑流水舌可成功规避对右岸的冲刷,整体泄流模拟所得沿程水深、流速分布、动水压强等水力参数符合实际情况,并且成功预测了不良流态位置。Water conservancy project isoforms are often difficult to design because of complicated geological conditions. With the aid of BIM 3D modeling technology,the research set different left-right heights on traditional flip bucket＇s floor,optimized the flip bucket structure by three-dimensional linkage of floor and sidew,all,let numerical simulation to select different deflection angles （θi ）,raised the angle of right floor （θ2） and jet angle （θ3 ）, finally the best scheme was represented by 3D function. The research shows that the flood releasing of 0.5 m scheme of θ1 = 19.82°,θ2 =arctan （ 1/12） and θ3 = 25 °.avoids the scour of the right bank slope and the simulation results of water depth, velocity distribution and dynamic water pressure are consistent with the actual situation and predict the adverse flow state position successfully.

关 键 词：异型体 挑流鼻坎 底板高差 三维设计 泄流模拟 

分 类 号：TV135.23[水利工程—水力学及河流动力学]