Experimental dataset on water levels in scrutinizing the influences of downstream semi-circular obstacles on floods arising from the failure of dams with different levels of reservoir silting

In this file, all water level data associated with 24 different dam
break scenarios were extracted from high-quality experimental video images. The
dataset is collected, classified and presented in a total of 24 distinct tables
in 3 categories based on downstream initial conditions; 1- Downstream bed with a
semi-circular obstacle with radius of 4.5 cm, 2- Downstream bed with a
semi-circular obstacle with radius of 7.5 cm, and 3- Smooth downstream bed
without any obstacle. Tables 1-8, present the free surface water level data at
20 different locations along the flume and 15 snap times after the dam break, while a semi-circular obstacle with radius of 4.5 cm was
initially mounted on the downstream bed. A clear water reservoir (without
sediment) as well as 7 different initial sediment depths (0.03, 0.075, 0.15,
0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 1-8, respectively. These
8 initial upstream sediment depths make the upstream reservoir 0% to 80%
silted-up with respect to the total 30 cm height of the reservoir. Table 9-16
provide the free surface water level data at all abovementioned sections and
snap times while a semi-circular obstacle with radius of 7.5 cm was initially
mounted on the downstream bed. A clear water reservoir (without sediment) as
well as 7 different initial sediment depths (0.03, 0.075, 0.15, 0.175, 0.2,
0.22 or 0.24 m) are detailed in Table 9-16, respectively. Table 17-24 show the
free surface water level data at all sections and snap times while the
downstream bed considered smooth and No obstacle was mounted on the downstream
bed. A clear water reservoir (without sediment) as well as 7 different initial sediment
depths (0.03, 0.075, 0.15, 0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 17-24,
respectively.

The unit that has been used to measure data is centimeter and the
abbreviations including

and

are the radiuses of downstream semi-circular
obstacles and upstream initial sediment depth, respectively. Time refers to the snap times after sudden removal of the gate
using second as a unit of measurement. It should be noted that the vertical column
to the left of the tables indicates the distances of different locations in
centimeters from the beginning point of the laboratory flume. So, the L column
indicates all 20 distinct locations along the flume and their distances from
the reservoir beginning, in centimeter as a unit of measurement.

Foad Vosoughi, Research Associate, Department of
Civil and Environmental Engineering, Shiraz University, Shiraz, Iran. [e-mail]