Collisional diffusion in a 2-dimensional point vortex gas

Daniel H.E. Dubin; Dezhe Z. Jin

doi:10.1016/S0375-9601(01)00296-1

Collisional diffusion in a 2-dimensional point vortex gas

Daniel H.E. Dubin, Dezhe Z. Jin

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17 Scopus citations

Abstract

Simulations showing the effect of shear on the collisional diffusion of a 2D point vortex gas are compared to theory. For finite shear the diffusion is considerably smaller than previous zero-shear theories predict. Surprisingly, changing the sign of the applied shear changes the diffusion by an order of magnitude.

Original language	English (US)
Pages (from-to)	112-117
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	284
Issue number	2-3
DOIs	https://doi.org/10.1016/S0375-9601(01)00296-1
State	Published - Jun 4 2001

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1016/S0375-9601(01)00296-1

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title = "Collisional diffusion in a 2-dimensional point vortex gas",

abstract = "Simulations showing the effect of shear on the collisional diffusion of a 2D point vortex gas are compared to theory. For finite shear the diffusion is considerably smaller than previous zero-shear theories predict. Surprisingly, changing the sign of the applied shear changes the diffusion by an order of magnitude.",

author = "Dubin, {Daniel H.E.} and Jin, {Dezhe Z.}",

note = "Funding Information: The authors thank Prof. C.F. Driscoll for suggestions that improved the manuscript. This research was supported by National Science Foundation grant PHY-9876999 and Office of Naval Research grant N00014-96-1-0239.",

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AU - Jin, Dezhe Z.

N1 - Funding Information: The authors thank Prof. C.F. Driscoll for suggestions that improved the manuscript. This research was supported by National Science Foundation grant PHY-9876999 and Office of Naval Research grant N00014-96-1-0239.

PY - 2001/6/4

Y1 - 2001/6/4

N2 - Simulations showing the effect of shear on the collisional diffusion of a 2D point vortex gas are compared to theory. For finite shear the diffusion is considerably smaller than previous zero-shear theories predict. Surprisingly, changing the sign of the applied shear changes the diffusion by an order of magnitude.

AB - Simulations showing the effect of shear on the collisional diffusion of a 2D point vortex gas are compared to theory. For finite shear the diffusion is considerably smaller than previous zero-shear theories predict. Surprisingly, changing the sign of the applied shear changes the diffusion by an order of magnitude.

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ER -

Collisional diffusion in a 2-dimensional point vortex gas

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