dorsal/arxiv
View SchemaEffects of the Charge-Dipole Interaction on the Coagulation of Fractal Aggregates
| Authors | Lorin Swint Matthews, T. W. Hyde |
|---|---|
| Categories | |
| ArXiv ID | physics/0401115 |
| URL | https://arxiv.org/abs/physics/0401115 |
Abstract
A numerical model with broad applications to complex (dusty) plasmas is presented. The self-consistent N-body code allows simulation of the coagulation of fractal aggregates, including the charge-dipole interaction of the clusters due to the spatial arrangement of charge on the aggregate. It is shown that not only does a population of oppositely charged particles increase the coagulation rate, the inclusion of the charge-dipole interaction of the aggregates as well as the electric dipole potential of the dust ensemble decreases the gelation time by a factor of up to twenty. It is further shown that these interactions can also stimulate the onset of gelation, or "runaway growth," even in a population of particles charged to a monopotential where previously it was believed that like-charged grains would inhibit coagulation. Gelation is observed to occur due to the formation of high-mass aggregates with fractal dimensions greater than two which act as seeds for runaway growth.
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"abstract": "A numerical model with broad applications to complex (dusty) plasmas is\npresented. The self-consistent N-body code allows simulation of the coagulation\nof fractal aggregates, including the charge-dipole interaction of the clusters\ndue to the spatial arrangement of charge on the aggregate. It is shown that not\nonly does a population of oppositely charged particles increase the coagulation\nrate, the inclusion of the charge-dipole interaction of the aggregates as well\nas the electric dipole potential of the dust ensemble decreases the gelation\ntime by a factor of up to twenty. It is further shown that these interactions\ncan also stimulate the onset of gelation, or \"runaway growth,\" even in a\npopulation of particles charged to a monopotential where previously it was\nbelieved that like-charged grains would inhibit coagulation. Gelation is\nobserved to occur due to the formation of high-mass aggregates with fractal\ndimensions greater than two which act as seeds for runaway growth.",
"arxiv_id": "physics/0401115",
"authors": [
"Lorin Swint Matthews",
"T. W. Hyde"
],
"categories": [
"physics.plasm-ph",
"physics.gen-ph"
],
"title": "Effects of the Charge-Dipole Interaction on the Coagulation of Fractal Aggregates",
"url": "https://arxiv.org/abs/physics/0401115"
},
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