The present study focuses on experimental characterization of interfacial instability pertinent to liquid jet and liquid sheet in the first wind-induced zone. To accomplish this objective, the interfacial wave growth rate, critical wave number, and breakup frequency associated with air-assisted atomizer systems were extracted by utilizing high-speed flow visualization techniques. For a range of liquid to gas velocities tested, nondimensionalization with appropriate variables generates the corresponding correlation functions. These functions enable to make an effective comparison between interfacial wave developments for liquid jet and sheet configurations. It exhibits liquid sheets superiority over liquid jets in the breakup processes leading to efficient atomization.

References

References
1.
Rayleigh
,
L.
,
1878
, “
On the Instability of Jets
,”
Proc. London Math. Soc.
,
s1–10
(1), pp.
4
13
.
2.
Weber
,
C.
,
1931
, “
Disintegration of Liquid Jets
,”
Z. Angew. Math. Mech.
,
11
(2), pp.
136
154
.
3.
Fraser
,
R. P.
,
Dombrowski
,
N.
, and
Routley
,
J. H.
,
1963
, “
The Atomization of a Liquid Sheet by an Impinging Air Stream
,”
Chem. Eng. Sci.
,
18
(
6
), pp.
339
353
.
4.
Reitz
,
R. D.
,
1978
, “Atomization and Other Breakup Regimes of a Liquid Jet,”
Ph.D. thesis
, Princeton University, Princeton, NJ.http://adsabs.harvard.edu/abs/1978PhDT........69R
5.
Lin
,
S. P.
, and
Kang
,
D. J.
,
1987
, “
Atomization of a Liquid Jet
,”
Phys. Fluids
,
30
(
7
), pp.
2000
2006
.
6.
Ibrahim
,
E. A.
, and
Akpan
,
E. T.
,
1998
, “
Liquid Sheet Instability
,”
Acta Mech.
,
131
(
3–4
), pp.
153
167
.
7.
Jazayeri
,
S. A.
, and
Li
,
X.
,
2000
, “
Nonlinear Instability of Plane Liquid Sheets
,”
J. Fluid Mech.
,
406
, pp.
281
308
.
8.
Lasheras
,
C.
, and
Hopfinger
,
E. J.
,
2000
, “
Liquid Jet Instability and Atomization in a Coaxial Gas Stream
,”
Annu. Rev. Fluid Mech.
,
32
(
1
), pp.
275
308
.
9.
Chauhan
,
A.
,
Maldarelli
,
C.
,
Rumschitzki
,
D. S.
, and
Papageorgiou
,
D. T.
,
2003
, “
An Experimental Investigation of the Convective Instability of a Jet
,”
Chem. Eng. Sci.
,
58
(
11
), pp.
2421
2432
.
10.
Wahono
,
S.
,
Honnery
,
D.
,
Soria
,
J.
, and
Ghojel
,
J.
,
2008
, “
High–Speed Visualisation of Primary Break-Up of an Annular Liquid Sheet
,”
Exp. Fluids
,
44
(
3
), pp.
451
459
.
11.
Villedieu
,
P.
,
Blanchard
,
G.
, and
Zuzio
,
D.
,
2013
, “
Numerical Simulation of Primary Atomization of a Sheared Liquid Sheet—Part 2: Comparison With Experimental Results
,” 25th European Conference Liquid Atomization and Spray Systems (
ILASS
), Chania, Greece, Sept. 1–4.https://hal.archives-ouvertes.fr/hal-01058391/document
12.
Dejean
,
B.
,
Berthoumieu
,
P.
, and
Gajan
,
P.
,
2016
, “
Experimental Study on the Influence of Liquid and Air Boundary Conditions on a Planar Air-Blasted Liquid Sheet—Part 1: Liquid and Air Thicknesses
,”
Int. J. Multiphase Flow
,
79
, pp.
202
213
.
13.
Zaremba
,
M.
,
Wei
ß,
L.
,
Maly
,
M.
,
Wensing
,
M.
,
Jedelsky
,
J.
, and
Jicha
,
M.
,
2017
, “
Low- Pressure Twin-Fluid Atomization: Effect of Mixing Process on Spray Formation
,”
Int. J. Multiphase Flow
,
89
, pp.
277
289
.
14.
Bean
,
H. S.
, ed.,
1971
,
Fluid Meters: Their Theory and Application
,
The American Society of Mechanical Engineers
,
New York
.
15.
Sivadas
,
V.
,
Balaji
,
K.
,
Krishna Raj
,
I.
,
Vignesh
,
E.
, and
Aravind
,
R.
,
2013
, “
Area Void Fraction Associated With Twin-Fluid Atomizer
,”
Atom. Sprays
,
23
(
8
), pp.
663
676
.
16.
Sivadas
,
V.
,
Balaji
,
K.
,
Sampathkumar
,
M.
,
Hassan
,
M. M.
,
Karthik
,
K. M.
, and
Saidileep
,
K.
,
2016
, “
Empirical Correlation of the Primary Stability Variable of Liquid Jet and Liquid Sheet Under Acoustic Field
,”
ASME J. Fluids Eng.
,
138
(
8
), p.
084501
.
17.
Sivadas
,
V.
,
Heitor
,
M. V.
, and
Fernandes
,
R.
,
2007
, “
A Functional Correlation for the Primary Breakup Processes of Liquid Sheets Emerging From Air-Assist Atomizers
,”
ASME J. Fluids Eng.
,
129
(
2
), pp.
188
193
.
18.
Barreras
,
F.
,
Lozano
,
A.
, and
Dopazo
,
C.
,
2001
, “
Linear Instability Analysis of the Viscous Longitudinal Perturbation on an Air-Blasted Liquid Sheet
,”
Atom. Sprays
,
11
, pp.
139
154
.http://ideafix.litec.csic.es/users/felix/2001-AtSp-v11n2.pdf
19.
Lozano
,
A.
,
Barreras
,
F.
,
Siegler
,
C.
, and
Low
,
D.
,
2005
, “
The Effects of Sheet Thickness on the Oscillation of an Air-Blasted Liquid Sheet
,”
Exp. Fluids
,
39
(1), pp.
127
139
.
You do not currently have access to this content.