BDa水电站泄洪雾化数学模型研究  

Mathematical Model of Flood Discharge Atomization for BDa Hydropower Station

作　　者：鲍伟 王天宇[2] 刘昉[2] BAO Wei;WANG Tian-yu;LIU Fang(POWER CHINA Guiyang Engineering Corporation Limited,Guiyang 550081,China;State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081 [2]天津大学水利工程仿真与安全国家重点实验室,天津300072

出　　处：《海河水利》2024年第4期87-90,95,共5页Haihe Water Resources

基　　金：中国华能集团有限公司科技项目(HNKJ22-H108)。

摘　　要：挑流泄洪雾化可能对两岸边坡稳定、交通安全和厂房的安全运行等产生不利影响。采用水滴随机喷溅数学模型,对BDa水电站在无自然风和汛期最不利自然风2种情况下3种典型泄洪工况的雾化影响范围和降雨强度分布进行了分析模拟。研究结果表明,泄洪雾雨受地形影响较大,横向扩散较弱,主要沿边坡爬升,雨强等值线集中;汛期最不利自然风使得雾雨影响范围向左岸偏移,泄洪雾化对左岸山坡的影响大于右岸;泄洪雾化暴雨区范围集中在坝轴线下游195~645 m,横向左岸3 017 m高程、右岸2 988 m高程以下。The flood discharge atomization caused by flip bucket may adversely affect the stability of slopes on both sides of the hydropower station,transportation safety and the safe operation of the power plant.The random spattering model is used to simulate the influence range and rainfall intensity distribution of three typical discharge conditions of the BDa hydropower station under two situations of both no natural wind and the most unfavorable natural wind in flood season,caused by flood discharge atomization.The result shows that the misty rain caused by flood discharge atomization is greatly affected by terrain,with weak lateral diffusion and mainly climbing along slopes,and the contour lines of rainfall intensity are concentrated.The most unfavorable natural wind in flood season causes the misty rain influence range to shift towards the left bank and the influence of flood discharge atomization on the left bank is greater than that on the right bank.The range of violent rainfall caused by flood discharge atomization is concentrated in the downstream area of the dam axis from 195 to 645 meters,with a lateral elevation below 3017 meters for the left bank and 2988 meters for the right bank.

关 键 词：泄洪雾化 随机喷溅 降雨强度 防护措施 

分 类 号：TV72[水利工程—水利水电工程] TV125