Varicose dynamics of liquid curtain: Linear analysis and volume-of-fluid simulations

Della Pia, Alessandro; Chiatto, Matteo; de Luca, Luigi

doi:10.1103/physrevfluids.9.084003

Phys. Rev. Fluids

2024

DOI: 10.1103/physrevfluids.9.084003

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Varicose dynamics of liquid curtain: Linear analysis and volume-of-fluid simulations

Alessandro Della Pia,

Matteo Chiatto,

Luigi de Luca

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Numerical simulation of integrated lacquer curtain with filing angle at curtain coater

Lin,

Zhan,

et al. 2024

AIP Advances

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This study investigates the effects of filing angles at the slits of a curtain coater on the formation, stability, and thickness uniformity of integrated lacquer curtains. Using a novel micro-scale measurement technique, the filing angles were determined and subjected to numerical simulations and experimental validation. The analysis focuses on optimizing the curtain coater for critical-flow-rate conditions, with the 26.4° angle demonstrating significant advantages in enhancing curtain integration. This angle reduced the threshold flow rate for stable curtain formation, improving mass flow rate consistency and dynamic pressure while minimizing turbulence kinetic energy. Additionally, the 26.4° filing angle minimized thickness variations along the curtain, preventing gradient-induced breakups and enhancing uniformity. The results offer a theoretical foundation for improving curtain coating efficiency and quality in industrial applications. Experimental data corroborated the numerical predictions, confirming the reliability of the simulation model.

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Numerical simulation of integrated lacquer curtain with filing angle at curtain coater

Lin,

Zhan,

et al. 2024

AIP Advances

View full text Add to dashboard Cite

show abstract

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Varicose dynamics of liquid curtain: Linear analysis and volume-of-fluid simulations

Cited by 1 publication

References 34 publications

Numerical simulation of integrated lacquer curtain with filing angle at curtain coater

Numerical simulation of integrated lacquer curtain with filing angle at curtain coater

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