异型挑流鼻坎三维设计及整体泄流模拟研究
发布时间：2018-11-06 12:41
【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。
[Abstract]:Because of the variety of topographic and geological conditions, water conservancy projects are often difficult to design. With the help of BIM 3D modeling technology of Auto-Revit, the left and right height difference is set on the bottom plate of the traditional slug, and the deflection angle 胃 _ 1, the height angle 胃 _ 2 of the right top and the angle 胃 _ 3 of the nose spring are optimized in the three dimensional linkage between the bottom plate and the sidewall. By numerical simulation, the optimal slug is represented by three-dimensional function. The simulation results of a spillway in a certain reservoir show that the sluicing tongue with 0. 5 m right uplift height of 胃 _ 1n 19.82 掳, 胃 _ 2=arctan (1 / 12), 胃 _ 3 ~ 25 掳can successfully avoid the scour on the right bank, and the whole discharge simulation results along the course of water depth. The hydraulic parameters such as velocity distribution, hydrodynamic pressure and so on accord with the actual situation, and the bad flow position is predicted successfully.
【作者单位】： 国家林业局昆明勘察设计院;云南农业大学水利学院;绵阳市水利规划设计研究院;
【基金】：水利部公益性行业科研专项(201301033)
【分类号】：TV135.23
本文编号：2314300
[Abstract]:Because of the variety of topographic and geological conditions, water conservancy projects are often difficult to design. With the help of BIM 3D modeling technology of Auto-Revit, the left and right height difference is set on the bottom plate of the traditional slug, and the deflection angle 胃 _ 1, the height angle 胃 _ 2 of the right top and the angle 胃 _ 3 of the nose spring are optimized in the three dimensional linkage between the bottom plate and the sidewall. By numerical simulation, the optimal slug is represented by three-dimensional function. The simulation results of a spillway in a certain reservoir show that the sluicing tongue with 0. 5 m right uplift height of 胃 _ 1n 19.82 掳, 胃 _ 2=arctan (1 / 12), 胃 _ 3 ~ 25 掳can successfully avoid the scour on the right bank, and the whole discharge simulation results along the course of water depth. The hydraulic parameters such as velocity distribution, hydrodynamic pressure and so on accord with the actual situation, and the bad flow position is predicted successfully.
【作者单位】： 国家林业局昆明勘察设计院;云南农业大学水利学院;绵阳市水利规划设计研究院;
【基金】：水利部公益性行业科研专项(201301033)
【分类号】：TV135.23
【相似文献】
相关期刊论文 前7条
1 王继保;张守磊;陈和春;;威远江水电站溢洪道挑流鼻坎数值模拟优化研究[J];三峡大学学报(自然科学版);2010年01期
2 穆亮;高学平;;溢洪道挑流鼻坎水气二相流数值模拟研究[J];长江科学院院报;2012年04期
3 赵树湘;预测挑流鼻坎自由跌落射流产生的冲刷深度[J];水利水电快报;1995年03期
4 张宗惠;挑流鼻坎反弧半径的拟定[J];水利学报;1982年11期
5 包中进,曹浙平;下岸水库溢流拱坝水力学试验研究[J];浙江水利科技;2001年01期
6 辛玉传;;挑流鼻坎的水力学计算与工程设计[J];人民长江;1987年02期
7 ;[J];;年期
相关硕士学位论文 前1条
1 徐海嵩;窄缝挑流鼻坎水力特性试验研究[D];西北农林科技大学;2014年
，本文编号：2314300
本文链接：https://www.wllwen.com/kejilunwen/shuiwenshuili/2314300.html
