| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rimbert, Nicolas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Primary and secondary breakup of molten Ti64 in an EIGA atomizer for metal powder productioncitations
- 2023Primary and secondary breakup of molten Ti64 in an EIGA atomizer for metal powder production
- 2023Swirling supersonic gas flow in an EIGA atomizer for metal powder production: Numerical investigation and experimental validationcitations
- 2021Direct and Inverse "Cascade" during Fragmentation of a Liquid Metal Jet into Water
- 2020Spheroidal droplet deformation, oscillation and breakup in uniform outer flowcitations
- 2020Spheroidal droplet deformation, oscillation and breakup in uniform outer flow
- 2019Fragmentation of a liquid metal jet into water
- 2017Interplay between liquid-liquid secondary fragmentation and solidification
- 2014Modeling the Dynamics of Precipitation and Agglomeration of Oxide Inclusions in Liquid Steelcitations
- 2011Crossover between Rayleigh-Taylor instability and turbulent cascading atomization mechanism in the bag-breakup regimecitations
- 2010Liquid Atomization out of a Full Cone Pressure Swirl Nozzle
- 2010Crossover between Rayleigh-Taylor Instability and turbulent cascading atomization mechanism in the bag-breakup regime
Places of action
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article
Crossover between Rayleigh-Taylor instability and turbulent cascading atomization mechanism in the bag-breakup regime
Abstract
The question of whether liquid atomization depends on instability dynamics (through refinements of Rayleigh-Plateau, Rayleigh-Taylor, or Kelvin-Helmholtz mechanisms) or on turbulent cascades, as suggested by Richardson and Kolmogorov, is still open. In this paper, experimental results reveal that both mechanisms are needed to explain the probability density functions (PDFs) of the droplets in a spray obtained from an industrial fan spray nozzle. Instability of Rayleigh-Taylor type controls the size of the largest droplets while the smallest droplets follow a PDF given by a turbulent cascading mechanism characterized by a log-Lévy stable law that has a stability parameter equal to 1.70. This value is very close to the inverse value of the Flory exponent and can be related to a recent model developed by N. Rimbert for intermittency modeling stemming from self-avoiding random vortex stretching.