Analysis of momentum distribution and influence of shallow flow in the wide-steep channel;

With the characteristics of curved chute,relatively high flow drop and huge discharges in the downstream reservoir spillway of Yangjiang pumped storage plant,the project problems of torrent shock wave in curved chute and flood discharge energy dissipation are relatively outstanding.

Through model test of TGP s flood releasing deep outlet,the characteristics of pressure distribution and cavitation are compared among different types of parabolic profile,and a chute type is put forward.

It is pointed out that the morphological evolution process of the lower Yellow River has three elementary aspects:shallow cross section,mild longitudinal slope and intensive amount of aggradation.