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SPH simulations of binary droplet deformation considering the Fowkes theory
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Title: | SPH simulations of binary droplet deformation considering the Fowkes theory |
Authors: | Natsui, Shungo Browse this author →KAKEN DB | Tonya, Kazui Browse this author | Nogami, Hiroshi Browse this author →KAKEN DB | Kikuchi, Tatsuya Browse this author →KAKEN DB | Suzuki, Ryosuke O. Browse this author →KAKEN DB |
Keywords: | SPH | Binary droplet | Interfacial tension | Fowkes hypothesis |
Issue Date: | 16-Jan-2021 |
Publisher: | Elsevier |
Journal Title: | Chemical Engineering Science |
Volume: | 229 |
Start Page: | 116035 |
Publisher DOI: | 10.1016/j.ces.2020.116035 |
Abstract: | To analyze the complex droplet transient deformation involving two immiscible phases, a practical multi -interfacial tension model has been introduced in the SPH framework. The attraction, which operates on the interface between the different phases is explicitly defined as London dispersion force using the Fowkes theoretical model, and the interfacial tension can be calculated using the sum of the attraction magnitudes corresponding to the surrounding particles. The analytical solution demonstrated good agreement with the simulated results corresponding to the macroscopic multicontact angles and nature of interphase interfacial forces. This simple model is widely applicable to the dynamic analysis of capillary forces involving two or more liquids, and we demonstrated its application to the simulation of the deformation behavior of a binary droplet that contacts a solid. The solid-liquid-liquid contact angle is not sufficient to predict the equilibrium morphology, and the momentum exchange between the two liquids should be considered. |
Rights: | © [2021]. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Type: | article |
URI: | http://hdl.handle.net/2115/86549 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 夏井 俊悟
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