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AFC & APR Lab
Presentation Overview
 Introduction
 Some of the studies performed in fluid mechanics laboratory
 Aerodynamic Flow Control
 Passive Flow Control Methods
 Active Flow Control Methods
 Atmospheric Plasma Usage in Aerodynamic Flow
Control
 DBD Aktuator based Plasma Induced Flow
 Flow Control Around the Circular Cylinder Using Plasma Actuators Placed on the
Splitter Plate
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EHD
d
1
2
3
………..
N
t
l
F (t,l,d,ε,ƒ,Vrms,N)
t :Dielectric thickness
ε:Dielectric constant
d:Distance between the electrodes
l: Electrode length
Vrms: Applied Voltage
ƒ: Signal frequency
N: Number of electrodes
The Effect of Voltage Biasing of the Electrods on Airflow Control
Peristaltic Effect
Paraelectric Effect
OAUGDP formation on a paraelectric
surface [Chen,2002].
System designed for paraelectric control
[Karakaya et al.., 1999].
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Experimental Setup and Measurement Equipments
2D Traverse
Wind Tunnel-1:40cm x40cm test crossection
Balance System
6 channel Hotwire
Anemometer
Wind Tunnel-2:57cm x57 cm test crossection
Mikromanometer
High Voltage Power Supply
EHD induced airflow control around NACA0015 model airfoil
Fotoğraf B8. NACA0015,=15° (Hücum açısı), plazma kapalı
Fotoğraf B9. NACA0015, =15° (Hücum açısı), plazma açık : Vpp = 12kV, f=4kHz
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Electrode 0
Electrode 2
Electrode 4
Electrode 1
Electrode 3
Electrode 5
a)Re=2400 air flow, plasma off
b)Re=2400 air flow, plasma on(6kV, 3.5kHz)
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a)Re=2900 air flow, plasma off
a)Re=3450 air flow, plasma off
b)Re=2900 air flow, plasma on (6kV,3.5kHz)
b)Re=3450 air flow, plasma on (6kV,3.5kHz)
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a)Re=4000 air flow, plasma off
b)Re=4000 air flow, plasma on (6kV,3.5kHz)
a)Re=2900 plasma on (6kV, 3.5kHz) b)Re=2900 actuators 0,3 (5.5kV, 3.2kHz) c)Re=2900 actuators 0,3,4,5 (4kV,
3.5Hz)
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THANK YOU !
Plasma Stealth
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Plasma Stealth
Surface Plasma
Dielektrik Panel
Plasma Stealth
Dielektrik Panel
Volume Plasma
Dielektrik Panel
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Plasma Sterilization
Plasma Needle
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