Rewriting result & discussion report
Introduction
q-blade
wind turbine
hydrokinetic turbine
change
Reynolds
by density
by viscosity
open source software
to analyze blade
to design blade
key element
airfoil design
blade design
analysis tool
X-Foil
import foil & geometry design
360 extrapolate
rotor design
key connection
wind
foil
turbine control & type
power
burden bend
997kg/ms
1.647Pa.s
BEM theory
DMS theory
Vertical & horizontal
conclude
easy use
arrange key element
adaptable
Methodology
3D design
2D design
airfoil design
X-foil analysis
360 extrapolate
blade design
simulation
import
dimensionless plot
.dat file
UIUC airfoil
Airfoil tool
s-series foil
shape the foil
image multiple airfoil
input parameter
graph
Reynolds number
Mach number
range of aoa
calculated
density water(997)
velocity(1.5)
Diameter rotor(1.50)
kinematic viscosity(0.001002)
local flow velocity,v(1.5)
speed of sound in water,a(1481)
-5 to 20 degree
cl vs alpa
cl/cd vs alpha
highest s1223
s1223 3rd high
required high lift
increase power
at degree,cl value
high inflow angle
for BEM simulation
graph
lift
drag
cl/cd(glider ratio)
to converge
Design parameter
number blade
hub radius
table form
position
chord
twist angle
foil
optimize
optimum tsr value
optimum twist
optimum chord
BEM Theory
momentum theory
blade element
divided into section
lift & drag apply
produce thrust and torwue
calculated each
chord
twist
axial & angular momentum
produce iteration of each section
thrust and torque
performance
involve BEM simulation
input parameter
density
viscosity
element
max iteration
relax factor
velocity
Result & discussion
focus(small intro)
performance
design
diameter<2m
average depth river
power required
range 700-1000watt per house
1.5m/s velocity
airfoil
S1223
continuous power
BEM theory
behavior of blade
Dimensional performance analysis
graph
key indicator
thrust
torque
power
BEM performance anaysis
key indicator graph
thrust vs tsr
torque vs tsr
power vs tsr
behavior of graph
behavior of graph
behavior of graph
Power extraction
Power vs rpm
TSR 6& above
TSR 5 and below
conclusion
aim
S1223,3bladed
range power 700-1000watt
rotor diameter less than 2m
power 1020wattt
BEM theory
Q-blade software
rotor diameter,1.5m
velocity,1.5m/s
decreases lift
increases lift
torque vs rpm
low torque
high torque
max power,TSR 5.0
max torque, TSR 4.0
power still increase
help of thrust force
thrust vs rpm
TSR 4
graph increase drastically
rotate the blade
result in max power, TSR 5.0
small conclusion
refer torque graph
max power, at 4.0
refer thrust graph
max power, TSR 5.0