We study self-propelled dynamics of a droplet due to a Marangoni effect and chemical reactions in a binary fluid with a dilute third component of chemical product which affects the interfacial energy of a droplet. The equation for the migration velocity of the center of mass of a droplet is derived in the limit of an infinitesimally thin interface. We found that there is a bifurcation from a motionless state to a propagating state of droplet by changing the strength of the Marangoni effect.
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Research Article| February 21 2012
Self-propelled motion of a fluid droplet under chemical reaction
S. Yabunaka, T. Ohta, N. Yoshinaga; Self-propelled motion of a fluid droplet under chemical reaction. J. Chem. Phys. 21 February 2012; 136 (7): 074904. https://doi.org/10.1063/1.3685805
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