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Evaluation of
variation of useful storage of reservoir in stream dams by
GSTARS3 software
M. Mahmoodian Shooshtari1,
A. Adib1* and M. H. Ranginkaman2
1Civil Engineering
Department, Engineering Faculty, Shahid Chamran University,
Ahvaz, Iran.
2Civil Engineering
Department, Azad Islamic University of Shooshtar, India.
*Corresponding author. E-mail:
arashadib@yahoo.com
.
Tel: 00989122153969
Accepted 2 October, 2009 |
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Stream dams are small dams. If the
conditions of site are not suitable for construction of
reservoir dams, stream dams will be constructed. These dams
have small reservoirs. These dams are without gate or these
are controlled by gates. The major problem of stream dams is
sedimentation special in rivers with high sediment load. In
gated stream dams, flushing is accomplished by opening of
the gates in flood condition. Construction of physical model
is very difficult for evaluation of efficiency of flushing
in removal sediment from reservoir of stream dam. Also the
cost of construction of physical model is very high.
Development of mathematical models is essential for modeling
of successive processes of sedimentation and flushing in
useful lifetime of stream dams. Because of variation of
boundary conditions in successive processes of sedimentation
and flushing of gated stream dams, Available mathematical
models can not model continuously these processes at total
of yield period. In this research, the long term
sedimentation and flushing process will be simulated by
development of a mathematical model. Modified mathematical
model can simulate successive processes of sedimentation and
flushing in useful lifetime of stream dams for different
conditions of use of reservoir. The time and cost of
simulation by modified mathematical model is very low. Also
accuracy of this model is acceptable for simulation. In this
research, the case study is successive stream dams on the
Dez River in Iran (Dez1 Dam, Dez2 Dam and Dez3 dam) for
evaluation of efficiency of modified mathematical model.
Key words:
The Dez river, stream dam, GSTARS3, flushing, sedimentation. |
