Yazar
Yılmaz, Anıl, Kayansalçik, Gökhan, Ertunç, Özgür
Basım Tarihi
2022
Basım Yeri
-
Begell House Inc.
Konu
Droplet dynamics, Gradient calculations, Moving wall, Multiphase flow, Parasitic current, VOF, Wall impact
Tür
Süreli Yayın
Dil
İngilizce
Dijital
Evet
Yazma
Hayır
Kütüphane
Özyeğin Üniversitesi
Demirbaş Numarası
1044-5110
Kayıt Numarası
d079bbbb-c264-4bf7-8499-f6d9af42e718
Lokasyon
Mechanical Engineering
Tarih
2022
Notlar
TÜBİTAK
Örnek Metin
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
