Real accuracy of several regime relationships for designing stable alluvial channels in
Egypt was determined. Extensive field measurements had been carried out on 26 Egyptian stable
canals, which cover various categories of irrigation canals starting from distributary, branch to carrier
canals in Egypt. Analysis of 1484 velocity profiles for 371 cross sections was employed in order
to formulate new regime equations characterizing Egyptian canals. The functional formulations to
include the flow depth, cross section area, hydraulic radius and mean velocity were achieved. This
research compared the deduced formulas from the measured data with the equations derived by
other researchers for stable channel design. It was found that the derived formulas are reliable
and could help in the design of Egyptian canals to convey a discharge ranging from 0.11 to
287.5 m3/s (0.0095–24.84 millions m3/day). |
