水利水电科技进展2017，Vol.37Issue(4)：47-52,6.DOI:10.3880/j.issn.1006-7647.2017.04.009
鸭子荡水库地形前处理及二维水流运动模拟
Terrain pretreatment and two-dimensional flow simulation in Yazidang Reservoir
摘要
Abstract
In order to study the two-dimensional (2D) flow in the Yazidang Reservoir, terrain pretreatment was carried out using the image processing method and Google Earth ( GE) software. The initial terrain of the reservoir was obtained through image mosaicking, mathematical morphology, and measured data. A 2D RNG k-ε turbulence model was established, reasonable boundary conditions and initial conditions of the flow module of the established model were set, the equations were discretized using the finite volume method, and a mesh was divided using the advancing-front method. The flow field in the reservoir and the depth-averaged velocity at sections near the water inlet and the water power were simulated. The results show that accurate and detailed reservoir terrain can be obtained using the image processing method and the GE software. The numerical simulation results of the flow field and the depth-averaged velocity at critical positions show that the simulated and measured values are in strong agreement.关键词
图像拼接/SURF算法/线性渐变融合算法/数学形态学/平面二维水流模型/鸭子荡水库地形Key words
image matching/SURF algorithm/linear gradient fusion algorithm/mathematical morphology/2D flow model/terrain of Yazidang Reservoir分类
建筑与水利引用本文复制引用
黄凌霄,李春光,郑兰香,杨程..鸭子荡水库地形前处理及二维水流运动模拟[J].水利水电科技进展,2017,37(4):47-52,6.基金项目
国家自然科学基金地区科学基金(61362029) （61362029）
宁夏高等学校科学研究项目(NGY2015139) （NGY2015139）
宁夏大学科学研究基金(ZR16018) （ZR16018）
