%0 Journal Article
%T Energy and Momentum Coefficients in Straight Symmetric Compound-Channel Flows
%J International Journal of Hydraulic Engineering
%@ 2169-9801
%D 2012
%I 
%R 10.5923/j.ijhe.20120103.01
%X Generally, the natural rivers or sometimes the artificial channels are composed of a deep main channel with one or two shallow flood plains. The flow situation must be a 3D condition, while on purpose of hydraulic management, it is necessary treated as 1D to calculate the corresponding hydraulic characteristics. And the energy and momentum coefficients to correct the effect of non-uniformity of velocity distribution are needed to adopt. In this paper, the straight symmetric compound-channel flow is researched beginning with dimensional analysis to find the variables affecting these two coefficients. The main factors, such as the reciprocal of ReynoldĄ¯s number and cross-section shape including water depth and main channel width, influencing the phenomena of the two coefficients in main channel, flood plain and total section are analysed and discussed.
%K Compound Channel Flow
%K Energy Coefficient
%K Momentum Coefficient
%K Regression
%K Velocity Distribution
%U http://article.sapub.org/10.5923.j.ijhe.20120103.01.html