Abstract
The dynamics of a single droplet under shear flow between two parallel plates is investigated by using the immersed boundary method. The immersed boundary method is appropriate for simulating the drop-ambient fluid interface. We apply a volume-conserving method using the normal vector of the surface to prevent mass loss of the droplet. In addition, we present a surface remeshing algorithm to cope with the distortion of droplet interface points caused by the shear flow. This mesh quality improvement in conjunction with the volume-conserving algorithm is particularly essential and critical for long time evolutions. We study the effect of wall confinement on the droplet dynamics. Numerical simulations show good agreement with previous experimental results and theoretical models.
| Original language | English |
|---|---|
| Pages (from-to) | 317-331 |
| Number of pages | 15 |
| Journal | International Journal of Computational Fluid Dynamics |
| Volume | 27 |
| Issue number | 8-10 |
| DOIs | |
| Publication status | Published - 2013 Dec |
Bibliographical note
Funding Information:This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2011-0023794). The authors also wish to thank the review- ers for their constructive and helpful comments on the revision of this article.
Keywords
- droplet deformation
- immersed boundary method
- remeshing
- shear flow
- volume conserving
- wall effect
ASJC Scopus subject areas
- Computational Mechanics
- Aerospace Engineering
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Mechanics of Materials
- Mechanical Engineering