Journal
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
Volume 356, Issue -, Pages 219-230Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cam.2019.02.010
Keywords
Thin film flows; Surface tension; Fingering instability; Adaptive moving mesh; r-adaptive method; Moving Mesh PDEs (MMPDEs)
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Funding
- government of the Kingdom of Saudi Arabia
- Taibah University
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In this paper, we extend our previous work (Alharbi and Naire, 2017) on a one-dimensional r-adaptive moving mesh technique based on a mesh density function and moving mesh partial differential equations (MMPDEs) to two dimensions. As a test problem, we consider the gravity-driven thin film flow down an inclined and pre-wetted plane including surface tension and a moving contact line. This technique accurately captures and resolves the moving contact line and associated fingering instability. Moreover, the computational effort is hugely reduced in comparison to a fixed uniform mesh. (C) 2019 Elsevier B.V. All rights reserved.
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