A. Tahershamsi , H. Bayat , J. Mahboubi , M. Geranmehr
Rockfill dams with inbuilt spillways are capable of passing surplus discharge by through-flow and overtopping and exhibits many advantages including reduced diversion costs, smaller terminal structures, etc. Further clarification of discharge coefficient (Cd) for this type of spillways is required for engineering purposes due to the complicated nature of turbulent flow through coarse porous media and boundary conditions. An experimental program was conducted to determine effects of uniformity coefficient (Cu), curvature coefficient (Cc), void ratio(e) and a dimensionless grain diameter defined by (d50⁄d100) on the discharge coefficient (Cd) . Observations indicated a significant reduction of discharge coefficient by increasing Cu and decreasing e and d50⁄d100. However, probable effects of (Cc) on (Cd), were not significant in these investigations.
Keywords: Internal spillway, discharge coefficient, uniformity coefficient, curvature coefficient
$15.00
ANCOLD is an incorporated voluntary association of organisations and individual professionals with an interest in dams in Australia.
System maintenance will be performed on the servers that host the ANCOLD Digital Guidelines, on Saturday, December 21st @ 10:00 PM AEDT which will require the servers to reboot.
Total downtime during that event could be up to 4 hours and will commence sharply at 10 pm AEDT. During that time end users will not be able to view or access their secured content.