Marangoni instability
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Artificial Intelligence–Driven Optimal Control of Limit Cycle Oscillations in Active Colloidal Systems
Abstract: Active colloidal droplets driven by Marangoni stresses exhibit complex nonlinear interfacial dynamics including spontaneous symmetry breaking, self-propulsion, and oscillatory instability behavior. In this work, a reduced-order nonlinear dynamical framework is developed for an active spherical colloidal droplet with surfactant-driven interfacial transport. Starting from the coupled Stokes flow, convection–diffusion–reaction, and interfacial stress balance equations, a Galerkin projection is applied to derive a three-mode reduced-order model governing the dominant surfactant concentration dynamics …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 17, Issue 3, 2026 · pp. 1–21 Read article