Convoluted interfaces in laminar dispersing jets
Abstract
Direct Numerical Simulations of a laminar
oil jet being injected into a flowing
viscous aqueous phase in a multi-layered static mixer. A
complex 3D rotational flow, naturally induced by the xshaped
lattice arrangement of the mixer’s crossbars, governs
the jet’s intricate shape evolution. Initially symmetrical Vshaped
branches stretch at high velocities (cyan zones)
through the gaps between crossbars, swirling and folding in
fascinating motions. As the orientation of the mixer shifts,
symmetry is lost and chaos ensues, triggering a myriad of
interfacial instabilities, causing drops and ligaments to deform
and fragment through a multitude of captivating mechanisms.
Domains
Nonlinear Sciences [physics]
Origin : Files produced by the author(s)