%0 Journal Article
%A WEN Ming-yi
%A LIU Han-sheng
%A FAN Ling-zhi
%A LIU Si-yuan
%T Energy Characteristics of Flow along Stepped Spillway
%D 2016
%R 10.11988/ckyyb.20150329
%J Journal of Yangtze River Scientific Research Institute
%P 60-62
%V 33
%N 7
%X In order to study the energy characteristics of water flow on stepped spillway, we conducted model test of stepped spillway with slope ratio of 1∶1.25 and different step heights. The results indicated that gross head of stepped spillway decreased dramatically along the flow path, and specific energy on stepped spillways  first increased and then remained constant. The change of specific energy  determines the gross head,and low stable specific energy   reflects better energy dissipation. Two dimensionless parameters of  stable specific energy and its influencing factors were obtained  through dimensional analysis,and a good power function law was found between the two dimensionless parameters based on the data from test and related literature, with the correlation coefficient  between 0.9949 and 0.9972. An empirical formula for calculating the residual energy and gross dissipation rate was put forward to  provide references for related design.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20150329