%0 Journal Article
%A HUANG Chao-xuan
%A FANG Yong-lai
%A LI Shui-long
%T Calculation of Energy Dissipation for the Most Unfavorable Conditions of Stilling Basin with Diffusing Trapezoidal Wing Wall
%D 2017
%R 10.11988/ckyyb.20150785
%J Journal of Yangtze River Scientific Research Institute
%P 71-76
%V 34
%N 1
%X Most  energy dissipation formula are applicable  to rectangular wing wall sections. In view of this, the most unfavorable condition of energy dissipation  for diffusing  trapezoidal wing of sluice wall was investigated according the hydraulics theory, the mathematical function theory and the dimensionless principle. Analytical formulas of  the relative contracted water  depth and  the relative water depth after  jump were deduced.By using Matlab software for numerical analysis and mathematical derivation, simple formulas were given to calculate the extremes of pool depth and  water jump length of the stilling basin of   coastal tidal drainage sluice influenced by tide level. Through   engineering example calculation, the analytic  formulas are proved to be convenient with high  precision and reliability.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20150785