{"title":"Dynamic Modeling of Vertical Collision of Hollow and Dense Droplets on the Semicircular Surface in Spray Coating","authors":"H. Sayyari, M. M. Peiravi, J. Alinejad","doi":"10.1134/S0015462822600742","DOIUrl":null,"url":null,"abstract":"<p>The volume of fluid (VOF) method is used to simulate numerically the behavior of hollow and dense droplets on a solid semicircular surface. The process was numerically investigated for various droplet locations and collision arrangements. The numerical simulations are performed using OpenFoam software. The fluid phase of the hollow droplet is glycerin with an outer diameter of 5.25 mm, and the gas phase is air with a diameter of 4 mm. The laminar flow of Newtonian, incompressible, fluid phase is examined. The hydrodynamic behavior of droplet collisions and the jet characteristics are studied. As a result, the impact of droplets on the surface made a jet of fluid. The length of the fluid jet increased over time and jet height was observed when droplets collided with sinusoidal surfaces.</p>","PeriodicalId":560,"journal":{"name":"Fluid Dynamics","volume":"59 5","pages":"1355 - 1370"},"PeriodicalIF":1.0000,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fluid Dynamics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0015462822600742","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
The volume of fluid (VOF) method is used to simulate numerically the behavior of hollow and dense droplets on a solid semicircular surface. The process was numerically investigated for various droplet locations and collision arrangements. The numerical simulations are performed using OpenFoam software. The fluid phase of the hollow droplet is glycerin with an outer diameter of 5.25 mm, and the gas phase is air with a diameter of 4 mm. The laminar flow of Newtonian, incompressible, fluid phase is examined. The hydrodynamic behavior of droplet collisions and the jet characteristics are studied. As a result, the impact of droplets on the surface made a jet of fluid. The length of the fluid jet increased over time and jet height was observed when droplets collided with sinusoidal surfaces.
期刊介绍：
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.
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