【摘要】 目的在于通过模型试验总结出电站双孔进水口计算临界淹没水深的经验公式。试验在三峡电站进水口的大比尺模型 (1∶ 30 )上进行。试验数据用计算机进行回归分析 ,拟合出数据曲线 ,得出双孔进水口计算临界淹没水深的经验公式 ,将此公式与清华大学水利系以前做的单孔进水口临界淹没水深经验公式及 Gordon公式进行比较。指出双孔进水口公式具有实际工程用途且具有优越性 ,在设计电站双孔进水口确定临界淹没水深时 ,可供设计者参考更多还原

【Abstract】 The paper presented an experimental study of the critical submergence of pressure power intakes. The model. (1∶30) was built based on the modified design data of the Three Gorges project. The distinguishing characteristics of these intakes are the very large discharge areas and quite high average velocities. The experiment data were compared with Gordon’s formula and an empirical formula which was obtained from the model study of single entrance power intakes. Then an empirical formula was developed to estimate the critical submergence of double entrance intakes. These two types of intakes as well as Gordon’s formula were then evaluated based on experimental results.更多还原