{"title":"Investigation of Hollow Glycerin Droplet Eccentric Impact on the Concave Obstacle and Indented Surface","authors":"H. Sayyari, M. M. Peiravi, J. Alinejad","doi":"10.1134/S0015462824602201","DOIUrl":null,"url":null,"abstract":"<p>The numerical analysis of the impact of a hollow droplet on a solid concave obstacle and a concave indented surface at various distances from the concave surface center is given. The volume of fluid (VOF) approach is used to simulate hollow impact using OpenFoam software. The Newtonian, incompressible, and laminar nature of the glycerin hollow droplet is assumed. The hollow droplet collision hydrodynamic behaviour and jet characteristics are studied. In all cases except case 3, a counter jet is created and deviates to the left. In cases 4 and 1, the greatest height and length were equal to 2.37 and 5.93 mm, respectively. On the concave obstacle surface, the jet fluid splashes up from the wall edge, but the jet fluid spread in the concave indented surface.</p>","PeriodicalId":560,"journal":{"name":"Fluid Dynamics","volume":"59 6","pages":"2029 - 2042"},"PeriodicalIF":1.0000,"publicationDate":"2025-02-16","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/S0015462824602201","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 numerical analysis of the impact of a hollow droplet on a solid concave obstacle and a concave indented surface at various distances from the concave surface center is given. The volume of fluid (VOF) approach is used to simulate hollow impact using OpenFoam software. The Newtonian, incompressible, and laminar nature of the glycerin hollow droplet is assumed. The hollow droplet collision hydrodynamic behaviour and jet characteristics are studied. In all cases except case 3, a counter jet is created and deviates to the left. In cases 4 and 1, the greatest height and length were equal to 2.37 and 5.93 mm, respectively. On the concave obstacle surface, the jet fluid splashes up from the wall edge, but the jet fluid spread in the concave indented surface.
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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