U. Kindelán

TL;DR: In this article, the evolution of charged droplets of a conducting viscous liquid was studied using a boundary element method and it was shown that a perturbed sphere with critical charge evolves into a fusiform shape with conical tips at time t 0, and that the velocity at the tips blows up as (t 0−t)α, with α close to −1∕2 in the neighborhood of the singularity.

TL;DR: In this article, the authors studied the evolution of drops of a very viscous and conducting fluid under the influence of an external electric field and found that the opening semiangle of the cones both for uncharged and charged drops in a constant electric field is typically around 30° with a very slight dependence on the viscosity ratio and independence from both total charge and external field.

TL;DR: This work studies the evolution of a viscous fluid drop rotating about a fixed axis at constant angular velocity $\Omega$ or constant angular momentum L surrounded by another viscous fluids to pay special attention to the stability/instability of equilibrium shapes and the possible formation of singularities representing a change in the topology of the fluid domain.

TL;DR: Analytical and numerical studies of the initial stage of the branching process based on an interface dynamics streamer model in the fully three-dimensional case are presented and the splitting and formation of characteristic treelike patterns of electric discharges are observed.

TL;DR: In this article, the Lippmann theory predicts unlimited spreading, with a decrease of the contact angle between drop and solid substrate, as one increases V 0, which is in contradiction with current experiments, where saturation of contact angle to a limiting value is found.