F
PI
AS
LASMA
NDUCED
LOW
ERODYNAMIC
TRUCTURE
http://my.fit.edu/eflow/
Disclosure:Figures do not have appropriate references; presentation under construction
Project GoalProject Goal
Analyze, design and build an aerodynamic structure which will improve performance by implementation of plasma actuators with optimum aerodynamic conditions along with corresponding efficiency regimes.
Objectives
• To improve critical angle of attack by >20%• Augment Lift vs. Drag ratio by > 15%• Increase Fuel efficiency by 0.5%• Optimize weight vs. takeoff and landing
distance ratio• Determine cost-effectiveness of this system
Design
Airfoil with plasma actuators in place. 1.07 mm trip wire located at the leading edge (not visible).
• Picture 2: NACA 0015 at an AOA of 12°, electrode voltage V = 3.6 kV @ 4.2 kHz– Flow separation is delayed, causing significant
reductions in drag
2 – DUGO DF102-P01 Flyback Transformer
Current Progress
Implementation of microprocessor based control of plasma panels:
(ex: 16 bit PIC Microcontroller)
• frequency • # and location of panels operating• Communication between HV systems• One test model with several scenarios
Up to 30K Volts on each Fyyback operating independent systems
FREQUENCY
Optimal : 5Khz (literature)
Our Future Tests: 2,4,5,6 Khz
Cannot be lower than 1Khz = Residual Current
VOLTAGE
Optimal :30kV
Our Performed Tests: 1,3,4,5,10kV 30 kV and other test dependent on equipment availability
Cannot be lower than 1Khz : Residual Current = periodicity loss
TEMPERATURE
Literature experiments:
High Thermal 107K
Low Thermal 2*104K
non Thermal (surfaces) = 300K
Currently we are calculating our own
HIGH VOLTAGE GENERATOR
PLASMA ARC IN EXPERIMENTAL SETUP
POWER SUPPLY
Transformer
Heat Sink
Potenciometer
Capacitor
LM555
MOSFET Driver
Work
High Voltage Generation
Primary
Circuit Board
Secondary
High Voltage
Coil
220
OAUF
DP P
anel
+12v
(On heat-sink)
ALLIRP50N06
IRF540
100
100
100
100
100
560
560
560
560
560
N-Channel MOSFETs
.01
.147uf 470
100K
100K
.001
+30 Volts or more
Tit le
S ize D o c u m e n t N u m b e r R e v
D a t e : S h e e t o f
<D o c >
Plasma Generator Circuitry
A
1 1S a t u rd a y , M a rc h 2 9 , 2 0 0 8
O U T3
VCC
8
C V5
TR I G2
TH R S D6
D S C H G7
LM555
V I N V O U TGrd
1
4
Variable Voltage, 120V – 50KV ACCurrent Power source , 1V DC – 60V DC
Considerations•High voltage cables•Operation/Maintenance Safety•Size and Weight
Battery Storage (Series)Permanent Generation (Turbines)
Efficiency ratio•Takeoff cycle•Landing cycle
Group Members Gonzalo Barrera
Esteban Contreras
Joseph Dixon
Andres Fung
Sumit Gupta
Georgio mahmood
Ivan Mravlag
Christian O. Rodriguez
Septinus Saa
For more information please visithttp://www.my.fit.edu/eflow