Journal Article

FZJ-2021-04851

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Lattice Boltzmann simulations of stochastic thin film dewetting

Zitz, S. (Corresponding author)FZJ* ; Scagliarini, A. ; Harting, J.FZJ*

2021
Inst. Woodbury, NY

This record in other databases:      

Please use a persistent id in citations: http://hdl.handle.net/2128/29286  doi:10.1103/PhysRevE.104.034801

Abstract: We study numerically the effect of thermal fluctuations and of variable fluid-substrate interactions on the spon-taneous dewetting of thin liquid films. To this aim, we use a recently developed lattice Boltzmann method for thinliquid film flows, equipped with a properly devised stochastic term. While it is known that thermal fluctuationsyield shorter rupture times, we show that this is a general feature of hydrophilic substrates, irrespective of thecontact angle θ . The ratio between deterministic and stochastic rupture times, though, decreases with θ . Finally,we discuss the case of fluctuating thin film dewetting on chemically patterned substrates and its dependence onthe form of the wettability gradients.

---

Contributing Institute(s):

1. Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien (IEK-11)

Research Program(s):

1. 1215 - Simulations, Theory, Optics, and Analytics (STOA) (POF4-121) (POF4-121)
2. DFG project 422916531 - Adaptive und schaltbare Grenzflächen basierend auf strukturierten Kolloiden (422916531)

Appears in the scientific report 2021

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---