The study aims to highlight a general relationship between the characteristic variables of liquid sheet breakup and the principal forces of the flow domain. To accomplish this objective, an experimental investigation on air-assisted liquid sheets was carried out for a range of liquid-to-air velocities. The associated spray angle, breakup frequency, and breakup length were measured by exploiting high-speed imaging techniques. The results demonstrate that, when the stability variables are related to the liquid–air momentum flux ratio, a high correlation was attained for a range of flow conditions where capillary instability is insignificant.
Issue Section:
Technical Papers
1.
Lefebvre
, A. H.
, 1980, “Air-Blast Atomization
,” Prog. Energy Combust. Sci.
0360-1285, 6
, pp. 233
–261
.2.
Rayleigh
, L.
, 1878, “On the Instability of Jets
,” Proc. London Math. Soc.
, 10
, pp. 4
–13
.3.
Weber
, C.
, 1931, “Disintegration of Liquid Jets
,” Z. Angew. Math. Mech.
0044-2267, 11
, pp. 136
–159
.4.
Taylor
, G. I.
, 1963, “Generation of Ripples by Wind Blowing Over a Viscous Liquid
,” The Scientific Papers of G.I. Taylor
, Cambridge University Press
, Cambridge, UK, Vol. 3
.5.
Chigier
, N.
, 1991, Combustion Measurements
, Hemisphere
, Washington, D.C.6.
Lozano
, A.
, and Barreras
, F.
, 2001, “Experimental Study of the Gas Flow in an Air-Blasted Liquid Sheet
,” Exp. Fluids
0723-4864, 31
, pp. 367
–376
.7.
Lozano
, A.
, Barreras
, F.
, Hauke
, G.
, and Dopazo
, C.
, 2001, “Longitudinal Instabilities in an Air-Blasted Liquid Sheet
,” J. Fluid Mech.
0022-1120, 437
, pp. 143
–173
.8.
McCarthy
, M. J.
, and Molloy
, N. A.
, 1974, “Review of Stability of Liquid Jets and the Influence of Nozzle Design
,” Chem. Eng. J.
0300-9467, 7
, pp. 1
–20
.9.
Lefebvre
, A. H.
, 1989, Atomization and Sprays
, Hemisphere
, New York, pp. 201
–267
.10.
Ranz
, W. E.
, 1958, “Some Experiments on Orifice Sprays
,” Can. J. Chem. Eng.
0008-4034, 36
, p. 175
.11.
Reitz
, R. D.
, 1978, “Atomization and Other Break-up Regimes of a Liquid Jet
,” Ph.D. thesis, Princeton University, Princeton, NJ.12.
Dombrowski
, N.
, and Johns
, W. R.
, 1963, “The Aerodynamic Instability and Disintegration of Viscous Liquid Sheets
,” Chem. Eng. Sci.
0009-2509, 18
, pp. 203
–214
.13.
Yang
, H. Q.
, 1992, “Asymmetric Instability of a Liquid Jet
,” Phys. Fluids A
0899-8213, 4
, pp. 681
–689
.14.
Weihs
, D.
, 1978, “Stability of Thin, Radially Moving Liquid Sheets
,” J. Fluid Mech.
0022-1120, 87
, pp. 289
–298
.15.
Huerre
, P.
, 1990, “Local and Global Instabilities in Spatially Developing Flows
,” Annu. Rev. Fluid Mech.
0066-4189, 22
, pp. 473
–537
.16.
Li
, H. S.
, and Kelly
, R. E.
, 1992, “The Instability of a Liquid Jet in a Compressible Air-stream
,” Phys. Fluids A
0899-8213, 4
, pp. 2162
–2168
.17.
O’Donnell
, B.
, Chen
, J. N.
, and Lin
, S. P.
, 2001, “Transition from Convective to Absolute Instability in a Liquid Jet
,” Phys. Fluids
1070-6631, 13
, pp. 2732
–2734
.18.
Li
, X.
, and Tankin
, R. S.
, 1991, “On the Temporal Instability of a 2-D Viscous Liquid Sheet
,” J. Fluid Mech.
0022-1120, 226
, pp. 425
–443
.19.
Sivadas
, V.
, and Moreira
, A. L. N.
, 2006, “Surface Waves on Liquid Sheets Emerging from Air-Assist Atomizers
,” Proceedings ICLASS-06
, Kyoto
, Japan, Aug. 27 – Sept. 1, Paper ID-269.20.
Santos
, D.
, 1998, “Liquid Film Disintegration
,” M.Sc thesis, Technical University of Lisbon, Lisbon, Portugal (in Portuguese).21.
Mansour
, A.
, and Chigier
, N.
, 1991, “Dynamic Behavior of Liquid Sheets
,” Phys. Fluids A
0899-8213, 3
, pp. 2971
–2980
.22.
York
, J. L.
, Stubbs
, H. E.
, and Tek
, M. R.
, 1953, “The Mechanism of Disintegration of Liquid Sheets
,” Trans. ASME
, pp. 1279
–1286
.Copyright © 2007
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