Phase-field modeling and computer simulation of the coffee-ring effect
- Authors
- Yang, Junxiang; Kim, Hyundong; Lee, Chaeyoung; Kim, Sangkwon; Wang, Jian; Yoon, Sungha; Park, Jintae; Kim, Junseok
- Issue Date
- 12월-2020
- Publisher
- SPRINGER
- Keywords
- Allen-Cahn equation; Monte Carlo simulation; Brownian dynamics; Pinning boundary condition; Coffee-ring effect
- Citation
- THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS, v.34, no.5-6, pp.679 - 692
- Indexed
- SCIE
SCOPUS
- Journal Title
- THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS
- Volume
- 34
- Number
- 5-6
- Start Page
- 679
- End Page
- 692
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/130339
- DOI
- 10.1007/s00162-020-00544-w
- ISSN
- 0935-4964
- Abstract
- In this study, we propose a novel computational model for simulating the coffee-ring phenomenon. The proposed method is based on a phase-field model and Monte Carlo simulation. We use the Allen-Cahn equation with a pinning boundary condition to model a drying droplet. The coffee particles inside the droplet move according to a random walk function with a truncated standard normal distribution under gravitational force. We perform both two-dimensional and three-dimensional computational experiments to demonstrate the accurate simulation of the coffee-ring phenomenon by the proposed model.
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Collections - College of Science > Department of Mathematics > 1. Journal Articles
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