3D simulation of droplet impact on static and moving walls

Name: 3D simulation of droplet impact on static and moving walls
Author: Yılmaz, Anıl, Kayansalçik, Gökhan, Ertunç, Özgür

İsim	3D simulation of droplet impact on static and moving walls
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

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3D simulation of droplet impact on static and moving walls

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