A multiphase model for exploring electrochemical Marangoni flow
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in: Electrochemistry Communications, Jahrgang 155.2023, Nr. October, 107567, 01.09.2023.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - A multiphase model for exploring electrochemical Marangoni flow
AU - Karimi Sibaki, Ebrahim
AU - Vakhrushev, Alexander
AU - Kadylnykova, Anastasiia
AU - Wu, Menghuai
AU - Ludwig, Andreas
AU - Bohacek, Jan
AU - Kharicha, Abdellah
PY - 2023/9/1
Y1 - 2023/9/1
N2 - A multiphase numerical model based on the volume of fluid (VOF) method is proposed to simulate the transient, electrochemically-generated Marangoni flow in a system comprising a NaOH electrolyte and a eutectic gallium–indium (EGaIn) metal droplet. The model incorporates appropriate equations to accurately represent the transport phenomena, including flow, electric potential, and electric current density, within the entire system. The model includes the transient variation in the interfacial tension as a function of electric current density at the interface, leading to the generation of Marangoni flow and enabling the tracking of droplet shape evolution. Notably, the model successfully captures the elongation of the droplet towards the cathode, which is validated through comparison with available experimental data.
AB - A multiphase numerical model based on the volume of fluid (VOF) method is proposed to simulate the transient, electrochemically-generated Marangoni flow in a system comprising a NaOH electrolyte and a eutectic gallium–indium (EGaIn) metal droplet. The model incorporates appropriate equations to accurately represent the transport phenomena, including flow, electric potential, and electric current density, within the entire system. The model includes the transient variation in the interfacial tension as a function of electric current density at the interface, leading to the generation of Marangoni flow and enabling the tracking of droplet shape evolution. Notably, the model successfully captures the elongation of the droplet towards the cathode, which is validated through comparison with available experimental data.
KW - multiphase model
KW - Marangoni flow
KW - Volume of fluid (VOF)
KW - Electro-Marangoni flow
KW - Eutectic gallium indium alloy (EGaIn)
KW - Droplet elongation
KW - Interfacial tension modulation
U2 - 10.1016/j.elecom.2023.107567
DO - 10.1016/j.elecom.2023.107567
M3 - Article
VL - 155.2023
JO - Electrochemistry Communications
JF - Electrochemistry Communications
SN - 1388-2481
IS - October
M1 - 107567
ER -
