The working fluid is cooled using open circulating cooling water which is introduced from condenser circulating water,and in summer its cooling effect was bad and this leads to the output of vacuum pump to be reduced and cavitation of pump wheel occurred;so that the safety and economical operation of unit had been influenced.

Based on the hydraulic model test of the large size flood-discharge tunnel under super-velocity flow of Jinping Hydropower Station I,the hydraulic control factors,including the characteristics of intake vortex and the countermeasures of eliminating the vortex,the aeration and cavitation mitigation and the outlet energy dissipation etc.

Experimental study on air entrainment to alleviate cavitations for downstream sidewalls of ogee-section in spillway tunnel;

Study on air entrainment to alleviate cavitations at the end of anti-arc in spillway tunnel;