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Planar Jet Stripping of Liquid Coatings: Numerical Studies

Abstract : In this paper, we present a detailed example of numerical study of film formation in the context of metal coating. Subsequently we simulate wiping of the film by a planar jet. The simulations have been performed using Basilisk, a grid-adapting, strongly optimized code. Mesh adaptation allows for arbitrary precision in relevant regions such as the contact line or the liquid-air impact zone, while coarse grid is applied elsewhere. This, as the results indicate, is the only realistic approach for a numerical method to cover the wide range of necessary scales from the predicted film thickness (hundreds of microns) to the domain size (meters). The results suggest assumptions of laminar flow inside the film are not justified for heavy coats (liquid zinc). As for the wiping, our simulations supply a great amount of instantaneous results concerning initial film atomization as well as film thickness.
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Aniszewski et al. - 2020 - Pla...
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Wojciech Aniszewski, youssef Saade, Stéphane Zaleski, Stéphane Popinet. Planar Jet Stripping of Liquid Coatings: Numerical Studies. International Journal of Multiphase Flow, Elsevier, 2020, 132, pp.103399. ⟨10.1016/j.ijmultiphaseflow.2020.103399⟩. ⟨hal-03146781⟩



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