A novel variant of a synthetic jet actuator (SJA) has been designed, manufactured, and tested. The novelty consists in a bio-inspired nozzle whose oscillating lip is formed by a flexible diaphragm rim. The working fluid is air, and the operating frequency is 65 Hz. The proposed SJA was tested by three experimental methods: phase-locked visualization of the nozzle lips, hot-wire anemometry, and momentum flux measurement using a precision scale. The results demonstrate advantages of the proposed SJA, namely, an increase in the momentum flux by 18% compared with that of a conventional SJA.

References

References
1.
Smith
,
B. L.
, and
Glezer
,
A.
,
1998
, “
The Formation and Evolution of Synthetic Jets
,”
Phys. Fluids
,
10
(
9
), pp.
2281
2297
.
2.
Glezer
,
A.
, and
Amitay
,
M.
,
2002
, “
Synthetic Jets
,”
Annu. Rev. Fluid Mech.
,
34
(
1
), pp.
503
529
.
3.
Mohseni
,
K.
, and
Mittal
,
R.
,
2015
,
Synthetic Jets: Fundamentals and Applications
,
CRC Press
,
Boca Raton, FL
.
4.
Cater
,
J. E.
, and
Soria
,
J.
,
2002
, “
The Evolution of Round Zero-Net-Mass-Flux Jets
,”
J. Fluid Mech.
,
472
, pp.
167
200
.
5.
Pack
,
L. G.
, and
Seifert
,
A.
,
2001
, “
Periodic Excitation for Jet Vectoring and Enhanced Spreading
,”
J. Aircr.
,
38
(
3
), pp.
486
495
.
6.
Dauphinee
,
T. M.
,
1957
, “
Acoustic Air Pump
,”
Rev. Sci. Instrum.
,
28
(
6
), p.
456
.
7.
Mallinson
,
S. G.
,
Reizes
,
J. A.
, and
Hong
,
G.
,
2001
, “
An Experimental and Numerical Study of Synthetic Jet Flow
,”
Aeronaut. J.
,
105
(
1043
), pp.
41
49
.
8.
Gallas
,
Q.
,
Holman
,
R.
,
Nishida
,
T.
,
Carroll
,
B.
,
Sheplak
,
M.
, and
Cattafesta
,
L.
,
2003
, “
Lumped Element Modeling of Piezoelectric-Driven Synthetic Jet Actuators
,”
AIAA J.
,
41
(
2
), pp.
240
247
.
9.
Holman
,
R.
,
Utturkar
,
Y.
,
Mittal
,
R.
,
Smith
,
B. L.
, and
Cattafesta
,
L.
,
2005
, “
Formation Criterion for Synthetic Jets
,”
AIAA J.
,
43
(
10
), pp.
2110
2116
.
10.
Zhou
,
J.
,
Tang
,
H.
, and
Zhong
,
S.
,
2009
, “
Vortex Roll-Up Criterion for Synthetic Jets
,”
AIAA J.
,
47
(
5
), pp.
1252
1262
.
11.
Trávníček
,
Z.
,
Broučková
,
Z.
, and
Kordík
,
J.
,
2012
, “
Formation Criterion for Axisymmetric Synthetic Jets at High Stokes Numbers
,”
AIAA J.
,
50
(
9
), pp.
2012
2017
.
12.
Chiatto
,
M.
,
Capuano
,
F.
,
Coppola
,
G.
, and
de Luca
,
L.
,
2017
, “
LEM Characterization of Synthetic Jet Actuators Driven by Piezoelectric Element: A Review
,”
Sensors
,
17
(
6
), p.
1216
.
13.
Gilarranz
,
J. L.
,
Traub
,
L. W.
, and
Rediniotis
,
O. K.
,
2005
, “
A New Class of Synthetic Jet Actuators–Part I: Design, Fabrication and Bench Top Characterization
,”
ASME J. Fluids Eng.
,
127
(
2
), pp.
367
376
.
14.
Wang
,
J.-J.
,
Shan
,
R.-Q.
,
Zhang
,
C.
, and
Feng
,
L.-H.
,
2010
, “
Experimental Investigation of a Novel Two-Dimensional Synthetic Jet
,”
Eur. J. Mech. B-Fluids
,
29
(
5
), pp.
342
350
.
15.
Trávníček
,
Z.
,
Vít
,
T.
, and
Tesař
,
V.
,
2006
, “
Hybrid Synthetic Jet as the Non-Zero-Net-Mass-Flux Jet
,”
Phys. Fluids
,
18
(
8
), p.
081701
.
16.
Kordík
,
J.
, and
Trávníček
,
Z.
,
2003
, “
Novel Fluidic Diode for Hybrid Synthetic Jet Actuator
,”
ASME J. Fluids Eng.
,
135
(
10
), p.
101101
.
17.
Girfoglio
,
M.
,
Greco
,
C. S.
,
Chiatto
,
M.
, and
de Luca
,
L.
,
2015
, “
Modelling of Efficiency of Synthetic Jet Actuators
,”
Sens. Actuator, A
,
233
, pp.
512
521
.
18.
Smith
,
B. L.
, and
Glezer
,
A.
,
2002
, “
Jet Vectoring Using Synthetic Jets
,”
J. Fluid Mech.
,
458
, pp.
1
34
.
19.
Amitay
,
M.
, and
Glezer
,
A.
,
2002
, “
Controlled Transients of Flow Reattachment Over Stalled Airfoils
,”
Int. J. Heat Fluid Flow
,
23
(
5
), pp.
690
699
.
20.
Mittal
,
R.
, and
Rampunggoon
,
P.
,
2002
, “
On the Virtual Aeroshaping Effect of Synthetic Jets
,”
Phys. Fluids
,
14
(
4
), pp.
1533
1536
.
21.
Chen
,
F.-J.
, and
Beeler
,
G. B.
,
2002
, “
Virtual Shaping of a Two-Dimensional NACA 0015 Airfoil Using Synthetic Jet Actuator
,”
AIAA
Paper No. 2002-3273.
22.
Ben Chiekh
,
M.
,
Bera
,
J. C.
, and
Sunyach
,
M.
,
2003
, “
Synthetic Jet Control for Flows in a Diffuser: Vectoring, Spreading and Mixing Enhancement
,”
J. Turbul.
,
4
(
1
), p.
32
.https://www.tandfonline.com/doi/abs/10.1088/1468-5248/4/1/032
23.
Yassour
,
Y.
,
Stricker
,
J.
, and
Wolfshtein
,
M.
,
1986
, “
Heat Transfer From a Small Pulsating Jet
,”
8th International Heat Transfer Conference
, San Francisco, CA, Aug. 17–22, pp.
1183
1186
.http://adsabs.harvard.edu/abs/1986hetr.conf.1183Y
24.
Kercher
,
D. S.
,
Lee
,
J.-B.
,
Brand
,
O.
,
Allen
,
M. G.
, and
Glezer
,
A.
,
2003
, “
Microjet Cooling Devices for Thermal Management of Electronics
,”
IEEE Trans. Compon. Pack. Technol.
,
26
(
2
), pp.
359
366
.
25.
Trávníček
,
Z.
, and
Tesař
,
V.
,
2003
, “
Annular Synthetic Jet Used for Impinging Flow Mass–Transfer
,”
Int. J. Heat Mass Transfer
,
46
(
17
), pp.
3291
3297
.
26.
Gillespie
,
M. B.
,
Black
,
W. Z.
,
Rinehart
,
C.
, and
Glezer
,
A.
,
2006
, “
Local Convective Heat Transfer From a Constant Heat Flux Flat Plate Cooled by Synthetic Air Jets
,”
ASME J. Heat Transfer
,
128
(
10
), pp.
990
1000
.
27.
Arik
,
M.
,
2008
, “
Local Heat Transfer Coefficients of a High-Frequency Synthetic Jet During Impingement Cooling Over Flat Surfaces
,”
Heat Transf. Eng.
,
29
(
9
), pp.
763
773
.
28.
Chaudhari
,
M.
,
Puranik
,
B.
, and
Agrawal
,
A.
,
2010
, “
Heat Transfer Characteristics of Synthetic Jet Impingement Cooling
,”
Int. J. Heat Mass Transfer
,
53
(
5–6
), pp.
1057
1069
.
29.
Persoons
,
T.
,
McGuinn
,
A.
, and
Murray
,
D. B.
,
2011
, “
A General Correlation for the Stagnation Point Nusselt Number of an Axisymmetric Impinging Synthetic Jet
,”
Int. J. Heat Mass Transfer
,
54
(
17–18
), pp.
3900
3908
.
30.
Trávníček
,
Z.
, and
Vít
,
T.
,
2015
, “
Impingement Heat/Mass Transfer to Hybrid Synthetic Jets and Other Reversible Pulsating Jets
,”
Int. J. Heat Mass Transfer
,
85
, pp.
473
487
.
31.
Lee
,
A.
,
Yeoh
,
G. H.
,
Timchenko
,
V.
, and
Reizes
,
J. A.
,
2012
, “
Flow Structure Generated by Two Synthetic Jets in a Channel: Effect of Phase and Frequency
,”
Sens. Actuators, A
,
184
, pp.
98
111
.
32.
Broučková
,
Z.
,
Trávníček
,
Z.
, and
Vít
,
T.
,
2019
, “
Synthetic and Continuous Jets Impinging on a Circular Cylinder
,”
Heat Transf. Eng.
,
40
(
13–14
), epub.
33.
Xia
,
Q.
, and
Zhong
,
S.
,
2017
, “
Enhancement of In Line Mixing With Lateral Synthetic Jet Pairs at Low Reynolds Numbers: The Effect of Fluid Viscosity
,”
Flow Meas. Instrum.
,
53
(
Pt. B
), pp.
308
316
.
34.
Pavlova
,
A. A.
,
Otani
,
K.
, and
Amitay
,
M.
,
2008
, “
Active Control of Sprays Using a Single Synthetic Jet Actuator
,”
Int. J. Heat Fluid Flow
,
29
(
1
), pp.
131
148
.
35.
Villanueva
,
A.
,
Smith
,
C.
, and
Priya
,
S.
,
2011
, “
A Biomimetic Robotic Jellyfish (Robojelly) Actuated by Shape Memory Alloy Composite Actuators
,”
Bioinspir. Biomim.
,
6
(
3
), p.
036004
.
36.
Marut
,
K.
,
Stewart
,
C.
,
Michael
,
T.
,
Villanueva
,
A.
, and
Priya
,
S.
,
2013
, “
A Jellyfish-Inspired Jet Propulsion Robot Actuated by an Iris Mechanism
,”
Smart Mater. Struct.
,
22
(
9
), p.
094021
.
37.
Dabiri
,
J. O.
, and
Gharib
,
M.
,
2005
, “
Starting Flow Through Nozzles With Temporally Variable Exit Diameter
,”
J. Fluid Mech.
,
538
(
1
), pp.
111
136
.
38.
Albright
,
S. O.
, and
Solovitz
,
S. A.
,
2016
, “
Examination of a Variable-Diameter Synthetic Jet
,”
ASME J. Fluids Eng.
,
138
(
12
), p.
121103
.
39.
Trávníček
,
Z.
,
Broučková
,
Z.
,
Kordík
,
J.
, and
Vít
,
T.
,
2015
, “
Visualization of Synthetic Jet Formation in Air
,”
J. Vis.
,
18
(
4
), pp.
595
609
.
40.
Feero
,
M. A.
,
Lavoie
,
P.
, and
Sullivan
,
P. E.
,
2015
, “
Influence of Cavity Shape on Synthetic Jet Performance
,”
Sens. Actuators, A
,
223
, pp.
1
10
.
41.
Broučková
,
Z.
, and
Trávníček
,
Z.
,
2015
, “
Visualization Study of Hybrid Synthetic Jets
,”
J. Vis.
,
18
(
4
), pp.
581
593
.
42.
Colin
,
S. P.
,
Costello
,
J. H.
,
Dabiri
,
J. O.
,
Villanueva
,
A.
,
Blottman
,
J. B.
,
Gemmell
,
B. J.
, and
Priya
,
S.
,
2012
, “
Biomimetic and Live Medusae Reveal the Mechanistic Advantages of a Flexible Bell Margin
,”
PLoS One
,
7
(
11
), p.
e48909
.
43.
Krishnan
,
G.
, and
Mohseni
,
K.
,
2009
, “
An Experimental and Analytical Investigation of Rectangular Synthetic Jets
,”
ASME J. Fluids Eng.
,
131
(
12
), p.
121101
.
44.
Kordík
,
J.
, and
Trávníček
,
Z.
,
2017
, “
Optimal Diameter of Nozzles of Synthetic Jet Actuators Based on Electrodynamic Transducers
,”
Exp. Therm. Fluid Sci.
,
86
, pp.
281
294
.
You do not currently have access to this content.