Self-propelled motion of a fluid droplet under chemical reaction

Details Self-propelled motion of a fluid droplet under chemical reaction Self-propelled motion of a fluid droplet under chemical reaction

2012-03-03

arxiv.org/abs/1203.0593v1

J. Chem. Phys. 136, 074904 (2012)

Nonlinear Sciences

Pattern Formation and Solitons

19 pages, 4 figures

Scientific paper

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 inter- face. 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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