We investigate numerically the breakup of an axisymmetric jet into drops in liquid-liquid systems, specifically focus on multiple node breakup, where more than one node of the most unstable wave becomes one drop. The unsteady Navier-Stokes equations for incompressible Newtonian fluids are solved with a Front-Tracking / Finite Difference method. Various combinations of the non-dimensional numbers (Re = 80, 160, 320; We = 5, 8; Fr = 4, 8, 32, ∞) are examined for constant ratios of density (ρc, ρj = 1.25) and viscosity (µc, µj = 1). Capillary waves grow on the jet surface and the multiple node breakup is observed in all cases examined. A “shoulder” is observed on the jet right behind the bulb when the double-node breakup occurs. Unlike the breakup of a jet in air, vortical motions in the external fluid affect the breakup process.
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ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
July 14–18, 2002
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3615-0
PROCEEDINGS PAPER
Multiple Node Breakup of a Liquid Jet Into Drops in Another Immiscible Liquid
Shunji Homma,
Shunji Homma
Saitama University, Saitama, Japan
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Shiro Matsumoto,
Shiro Matsumoto
Saitama University, Saitama, Japan
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Gre´tar Tryggvason
Gre´tar Tryggvason
Worcester Polytechnic Institute, Worcester, MA
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Shunji Homma
Saitama University, Saitama, Japan
Jiro Koga
Saitama University, Saitama, Japan
Shiro Matsumoto
Saitama University, Saitama, Japan
Gre´tar Tryggvason
Worcester Polytechnic Institute, Worcester, MA
Paper No:
FEDSM2002-31152, pp. 881-886; 6 pages
Published Online:
February 24, 2009
Citation
Homma, S, Koga, J, Matsumoto, S, & Tryggvason, G. "Multiple Node Breakup of a Liquid Jet Into Drops in Another Immiscible Liquid." Proceedings of the ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. Volume 1: Fora, Parts A and B. Montreal, Quebec, Canada. July 14–18, 2002. pp. 881-886. ASME. https://doi.org/10.1115/FEDSM2002-31152
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