高坝泄洪雾化模型试验研究

Model test studies of atomized flow for high dams

摘要: 泄洪雾化是近20多年来水电工程中出现的一个新课题,现在的高坝具有落差大、泄洪流量大、河谷狭窄等特点,雾化问题突出,雾化水流的研究已成为高坝建设中新的水力学关键技术问题之一.为了正确预测高坝泄洪雾化雨强分布,根据二滩、安康、岩滩和小湾等工程的泄洪雾化物理模型试验和原型观测雾化资料,得出了用物理模型来研究高坝泄洪雾化的规律,并据此设计溪洛渡水电站泄洪雾化模型,试验得出溪洛渡水电站不同工况下的雾化雨强分布,为工程防护提供了科学依据.

Abstract: The atomized flow is a new subject in recent twenty years.The newly-constructed high dams are characterized by high water head,large discharge flow,narrow gorges and severe atomization.Therefore,the research on the atomized flow has become a key technical problem in the field of high dam hydraulics.In order to estimate the distribution of atomized rainfall density of the high dam with high water head,the prototype observed data and the model test data from the Ertan,Ankang,Yantan,Xiaowan Hydropower Stations...