chaotic advection

chaotic advection

[kā′äd·ik ad′vek·shən]
(fluid mechanics)
Fluid motion in which the trajectories of particles initially quite close diverge rapidly, even though the flow carrying the particles may be simple.
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These patterns, in turn, provide the dynamical templates by which one can begin to understand the chaotic advection of particles in a vortex-dominated flow.
A different but complementary mechanism is that of laminar, chaotic advection (Aref 1984, Ottino 1989) in which chaotic particle paths can be used to enhance heat transfer (Acharya et al.
1997, "The Effects of Chaotic Advection on Heat Transfer," Int.
The process of chaotic advection is characterized by recursive stretching and folding of compounds in a fluid-like state, forming and reforming a complicated network structure.
A sampling of topics includes: the Delay logistic model, three- dimensional and higher-dimensional models, non-chaotic systems, rotations, shape and form, chaotic advection, and chaos in galaxies and related simulations.
Chaotic advection has become an important sub-field of fluid mechanics (9).
Rapid refinement was an outcome of chaotic advection so that the devices were effective with internal geometries much simpler than those of extruders.
The melt streams to be combined are each fed by their respective extruders into the "smart blender," a barrel or cylinder containing two or more independently rotating stir rods that cause the chaotic advection motion and create a defined melt structure rather than a homogeneous blend.
From the chaotic advection chamber, the structured blend enters a streamlined flow path leading to the exit lip, where melt is formed into the bubble.
with National Science Foundation support, the SmartBlender uses a principle of fluid dynamics known as chaotic advection to fold a masterbatch or other component into a matrix polymer.
Chaotic advection creates linear striations of carbon black particles in the machine direction, which act like tiny wires.
The body of the device consists of a cylinder containing rods that simultaneously rotate and revolve as a group, thereby stretching and folding the two melts together by chaotic advection (transport).