In virtue of specific head and discharge of Gongboxia hydropower station,the diversion tunnel was studied to reconstruct into flood discharge tunnel with horizontal vertex flow or flood discharge tunnel with vertical vertex flow.

Shape optimization for pressure outlet transition section and working gate chamber of spillway tunnel;

Basic flow pattern in horizontal rotary flow spillway tunnels and its influencing factors;

Research on shape optimization for flip bucket of spillway tunnel for Xiluodu Hydropower Station;