Coherent Particle Structures in High-Prandtl-Number Liquid Bridges

Abstract Clustering of small rigid spherical particles into particle accumulation structures (PAS) is studied numerically for a high-Prandtl-number (Pr = 68) thermocapillary liquid bridge. The one-way-coupling approach used calculation the motion, modeling PAS as an attractor single particle. created by dissipative forces acting on near boundary due to finite size These can dramatically deflect trajectory from fluid pathline and transfer it certain tubular flow structures, called Kolmogorov–Arnold–Moser (KAM) tori, in which focused might not escape anymore. take place if KAM torus, property without particles, enters narrow layer boundaries experiences extra forces. Since obtained this system depends mainly size, be classified finite-size coherent structure (FSCS).