摘要
我国将在西南和西北高山峡谷区相继修建高坝工程,这些工程都有严重的泄流雾化问题。泄流雾化是一种水-气和气-水二相流,运动规律十分复杂,目前多采用原型观测和数值计算的研究方法。本文以二滩水电站为研究对象,对其2个原型观测工况的泄流雾化情况进行数值计算,并将计算结果与原型观测成果进行了对比研究。结果表明,泄流雾化数学模型计算得到的雾化范围和降雨强度分布变化规律与原型观测成果基本一致,该计算模型可以广泛应用到泄流雾化的预测计算中,为工程建设和运行提供必要的技术参考。
High dams will be constructed in the southwest and northwest of China. They will suffer serious atomization that produces water-air and air-water two-phase flows. The flow behavior is very complex and presently prototype observation and numerical simulation are two major methods for the atomization study. This paper presents a simulation of flow atomization that is compared with two sets of observation data in situ at Ertan hydropower station. Results indicate that the calculated atomization range and rainfall intensity are approximately consistent with the prototype observations. The method of numerical simulation can be applied to forecast the atomization of high dams.
出处
《水力发电学报》
EI
CSCD
北大核心
2010年第1期19-23,共5页
Journal of Hydroelectric Engineering
基金
国家杰出青年科学基金(50725929)
国家自然科学重点基金(50539060)
国家自然科学基金(50679052)
关键词
水力学
泄流雾化
高坝
数值计算
原型观测
hydraulics
atomization
high dam
numerical simulation
field investigation
