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Hydraulic
Pump-Turbine
Reservoir CFD
Simulations
This project was
performed in
2010 for an
accurate study
of flow patterns
in a
pump-turbine
reservoir.
During the
operation, water
from downstream
is pumped and
delivered to the
reservoir. At
the second step
the water in the
reservoir flows
through the
turbine. Due to
geometry design
for this
reservoir, in
this project a
comprehensive
CFD simulation
to study the
effect of
pumping and flow
patterns in
reservoir on
turbine
hydraulic
efficiency was
performed. Using
numerical
simulation the
effect of
various
parameters on
plant hydraulic
efficiency was
specified.
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1.7 Km
Overflow Design
of Rogun Dam in
Tajikistan Using
CFD Simulations
This project was
performed in
2012 with the
aim of Rogun dam
overflow design.
Several
approaches for
an optimum
design were
evaluated. 1.7
Km overflow
hydraulic design
must be combined
with the
geological
studies. Soft
rock eases the
excavation but
enough strength
for radial gate
installation is
an important
factor that must
be considered.
Overflow
diameter
reduction can
save expenses in
excavation, on
the contrary
smaller tunnel
results in
higher velocity
flow and
requires steel
lining that can
increase the
expenses. Using
comprehensive
CFD simulations,
the optimization
of different
factors such as
excavation
expenses, steel
lining expenses
and rock density
was achieved and
proper overflow
was designed.
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CFD
Simulation of
Water Flow in
Tana River in
Kenia
This project was
executed in 2009
to study the
effect of river
sedimentation
growth on water
delivery to
hydraulic power
plant. In this
river water flow
can be
controlled with
the radial
gates. Using CFD
simulation the
effect of
various
parameters such
as water depth
and flow
controlling
strategies was
investigated on
power plant
efficiency.
Two Phase CFD Simulation
of Karun 3,
Gotvand and Siah
Bishe Surge Tank
This project was
performed in
2010 with the
aim of
simulation and
optimization of
Karun 3, Gotvand
and Siah Bishe
surge tanks.
Surge tanks are
used in hydro
power to damp
the pressure
fluctuations.
Based on
numerical
simulations for
Gotvand surge
tank, in some
water levels
because of the
improper design
the destructive
wave can even be
formed with a
time delay.
Using two phase
CFD simulations,
the
modifications
were exerted and
new design was
produced.
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Comprehensive Supercavitation
Study for
Cavitator Design
Knowledge
Development
Using CFD
Simulations
This project was
performed in
2006 to provide
a deep insight
into
supercavitation
phenomenon in
Arya Alborz
Company.
Supercavitation
phenomenon takes
place behind an
object under the
water with the
reduction of
static pressure
to water vapor
absolute
pressure. To
study this
phenomenon,
different
surfaces such as
plane, spherical
and wedge were
simulated and
drag
coefficients at
various
cavitation
numbers were
validated with
water tunnel
tests. Based on
investigation in
this project the
cavitator design
knowledge was
produced in Arya
Alborz Company.
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Two Phase
Flow Numerical
Simulation of
Sedimentation
Growth in the
Sea
This project was
performed in
2005 to study
and simulate the
sedimentation
growth on the
pier
foundations.
According to the
flow regime,
water velocity,
topography and
other
parameters,
sediments
formation can
take place close
to the pier
foundations. Due
to the
difficulty and
high costs for
dredging of the
seabed, the
effect of
various
parameters using
comprehensive
CFD simulations
in a real case
was studied and
good insight of
sedimentation
prediction was
developed in
Arya Alborz
Company.
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