Open Channel Flow Simulation (Sedimentation Problem in Rosaries Dam)
Open Channel Flow Simulation (Sedimentation Problem in Rosaries Dam)
No Thumbnail Available
Date
2015-04-30
Authors
Atya, Abbas Hassan Abbas
Journal Title
Journal ISSN
Volume Title
Publisher
UOFK
Abstract
Sedimentation problem, in Rosaries Dam, is one of the biggest problems
facing the electrical hydropower generation, especially during autumn.
Sedimentation reduces the storage capacity of the lake behind the dam and
increases the cost of the MWH due to the high cost of silt removal.
This thesis is about a CFD application (SSIIM program) used to describe
and simulate the water flow and sediment concentration (considered as solid
particles) in the reservoir. SSIIM is designed for the analysis of such
phenomenon. Simulations were done for three types of sediments according to
their diameters and taken into account that the turbine gates are fully opened and
all other gates are closed. These simulations and analysis lead to suitable
solutions for silt removal and by consequence reduce the cost of such
operations.
This study explains the direction of velocity vectors, vortices and
sediment concentration that occur behind the dam in the three Cartesian
coordinate (x, y and z). Results are presented, for samples of each type of
sediment, for different longitudinal profiles and depths.
Description
83page
Keywords
Open,Channel,Flow,Simulation