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Experimental verification of the additivity between the barrel droplet's drag force and the fiber number |
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| Authors: | Chaolei Wang Zhenbo Wang Zhiqian Sun Liyun Zhu Yijie Li Jianhua Zou Zhilong Dong Ziyi Wang Xiaogang Xu |
| Affiliation: | 1. College of New Energy, China University of Petroleum (East China), Qingdao, China
Contribution: Conceptualization (equal), Data curation (lead), Formal analysis (lead), Investigation (lead), Methodology (lead), Project administration (equal), Software (lead), Visualization (lead), Writing - original draft (lead), Writing - review & editing (equal);2. College of New Energy, China University of Petroleum (East China), Qingdao, China;3. State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, China Contribution: Supervision (equal), Writing - review & editing (equal);4. College of New Energy, China University of Petroleum (East China), Qingdao, China Contribution: Investigation (supporting), Software (supporting), Visualization (equal), Writing - original draft (supporting);5. College of New Energy, China University of Petroleum (East China), Qingdao, China Contribution: Investigation (supporting);6. College of New Energy, China University of Petroleum (East China), Qingdao, China Contribution: Data curation (equal), Formal analysis (supporting);7. College of New Energy, China University of Petroleum (East China), Qingdao, China Contribution: Supervision (supporting);8. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, China Contribution: Investigation (supporting), Supervision (supporting) |
| Abstract: | Research on the single fiber scale has an essential application value in the coalescence field. The study of the droplets' behavior on the fiber junctions can provide support data for optimizing the coalescer's drainage performance on the macroscopic scale. However, relevant research focusing on the force change of droplets during the transition from a single fiber to multifiber is relatively scarce. The droplet migration platform was built using the Lavision particle image velocimetry system, which can observe the behavior of droplets on fibers. The force and fiber number relationship were analyzed when the droplets were separated from the fiber junctions. Two detachment modes were observed during separation. Furthermore, the drag force satisfied the additivity theorem by increasing the number of fibers under the same detachment mode. In addition, the minimum Reynolds number prediction model was established under two separation forms, which had good prediction compared to the experimental data. |
| Keywords: | additivity theorem of force drag force droplets fibers minimum Reynolds number |
