摘要
本文采用随机喷射数学模型,对白鹤滩水电站泄洪雾化过程进行模拟,分析了泄洪条件、水舌风场、及下游地形对雾化降雨分布的影响。研究表明,白鹤滩电站坝身深孔泄洪时,下游雾化降雨区纵向范围超过1000m,两岸爬升高度超过200m,暴雨中心降雨强度达800mm·h-1以上,泄洪洞泄洪时下游雾化范围可达750m,暴雨中心降雨强度约600mm·h-1。雾雨分布的计算结果可为下游岸坡防护与建筑物布置的设计提供参考。
A stochastic mathematical model of water jet splashing was applied to simulate the discharge atomization process in the Baihetan hydropower station. The impacts of releasing conditions, wind field, and topography downstream on rainfall distribution were analyzed. Results have shown that the dam outlets discharging creates anatomization area of longitudinal extent greater than 1000m and a water climbing on both sides of higher than 200m, and the resulting intensity of precipitation in the rainstorm area is over 800mm h-1. As the spillway tunnel discharges, the atomization range downstream is up to 750m and the intensity of rainstorm area is up to 600mm.h-1. The present calculations provide useful data for design of bank slope protection and building layout.
出处
《水力发电学报》
EI
CSCD
北大核心
2014年第2期111-115,共5页
Journal of Hydroelectric Engineering
基金
水利部公益性行业科研专项项目(201101005)
关键词
水电站
泄洪雾化
随机数学模型
降雨强度
hydropower engineering
flood discharge atomization
stochastic mathematical model
rainfall intensity
