Adaptive mesh axi-symmetric simulation of droplet impact with a spherical particle in mid-air
- Authors
- Yoon, I.; Chergui, J.; Juric, D.; Shin, S.
- Issue Date
- 1-Oct-2022
- Publisher
- Elsevier Ltd
- Keywords
- Droplet impact; Mid-air collision; Multiphase flow; Numerical simulation; Spherical particle
- Citation
- International Journal of Multiphase Flow, v.155
- Journal Title
- International Journal of Multiphase Flow
- Volume
- 155
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/30223
- DOI
- 10.1016/j.ijmultiphaseflow.2022.104193
- ISSN
- 0301-9322
- Abstract
- In this study, droplet-particle collisions in mid-air are numerically investigated for a wide range of collision parameters: Weber number, contact angle and droplet/particle diameter ratio (4 ≤ We ≤ 150, 20° ≤ θeqi ≤ 160°, and Ω = 1/2 and 1). To perform these simulations in an efficient manner, a simple dual grid based adaptive mesh refinement (SDG AMR) strategy is proposed and implemented in our existing multiphase flow solver. A total of 90 collision cases are systematically analyzed and are compared with results for the case of impact on a stationary particle to understand how mid-air collision characteristics are changed relative to those on a stationary target. The simulation results show that mid-air droplet-particle collision behavior is significantly different from that of droplet collision on a stationary particle, thus the impact phenomena cannot be interpreted by extrapolating collision results for a stationary target. © 2022 Elsevier Ltd
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Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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