Author
Yılmaz, Anıl, Kayansalçik, Gökhan, Ertunç, Özgür
Publication Date
2022
Publication Place
-
Begell House Inc.
Subject
Droplet dynamics, Gradient calculations, Moving wall, Multiphase flow, Parasitic current, VOF, Wall impact
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1044-5110
Record ID
d079bbbb-c264-4bf7-8499-f6d9af42e718
Library Location
Mechanical Engineering
Date
2022
Notes
TÜBİTAK
Sample Text
In the present study, the contact angle model and the origin of the parasitic current, precisely, the relation of the parasitic current with grid distribution, have been studied to accurately predict droplet impact on static and moving walls in the volume of fluid (VOF) framework. The authors have quantitatively shown that the number of neighboring cells of the central cell influences the gradient calculations regarding the generation and spatial distribution of parasitic current. Accordingly, the polyhedral cell structure provides smoother interface gradient distribution than the Cartesian grid structure. After implementing a modified Kistler contact angle model in OpenFOAM and using the polyhedral grid for the simulations, we could accurately validate transient droplet shapes formed upon impact with those obtained from experiments. Droplet outcomes obtained, such as deposition, partial rebound, and split deposition on stationary and moving smooth surfaces, are consistent with experimental results.
DOI
10.1615/AtomizSpr.2022037680
Cilt
32
