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Numerical Simulations and Modal Analysis to Investigate the Defects in a Coating Process

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http://hdl.handle.net/2183/29047
Atribución 3.0 España
Except where otherwise noted, this item's license is described as Atribución 3.0 España
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  • CIT-GII - Artigos [28]
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Title
Numerical Simulations and Modal Analysis to Investigate the Defects in a Coating Process
Author(s)
Barreiro-Villaverde, David
Lema, Marcos
Gosset, Anne
Date
2021-10
Abstract
Abstract: This work investigates the hydrodynamics of jet wiping, a coating process in which a thin slot gas jet impinges on a coating film dragged by a moving strip; thus, reducing the coating thickness and developing a run-back flow. The interaction between the liquid film and the gas jet is highly unsteady, producing long-wavelength defects on the final product known as undulations. We perform Computational Fluid Dynamics (CFD) simulations of the process using High-Performance Computing (HPC) resources. A multi-scale modal analysis is then applied to decrypt the mechanism of wave formation. The main undulation pattern features two-dimensional waves and is correlated with a large-scale motion of the gas jet.
Keywords
Mecánica de fluidos
Computación
Mecánica de fluidos - Simulación por ordenador
Flujo polifásico
 
Editor version
https://doi.org/10.3390/engproc2021007030
Rights
Atribución 3.0 España
ISSN
2673-4591

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