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...