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Evolution of the ma...
Evolution of the magnetic field generated by the Kelvin-Helmholtz instability
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- Modestov, Mikhail (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Nordiska institutet för teoretisk fysik (Nordita),Stockholm University
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- Bychkov, Vitaly (författare)
- Umeå universitet,Institutionen för fysik,Umeå University
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- Brodin, Gert (författare)
- Umeå universitet,Institutionen för fysik,Umeå University
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- Marklund, Mattias, 1970 (författare)
- Umeå universitet,Institutionen för fysik,Department of Applied Physics, Chalmers University of Technology, Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
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- Brandenburg, Axel (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Department of Astronomy, Sweden,Institutionen för astronomi,Nordiska institutet för teoretisk fysik (Nordita),Stockholm University
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(creator_code:org_t)
- AIP Publishing, 2014
- 2014
- Engelska.
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Ingår i: Physics of Plasmas. - : AIP Publishing. - 1089-7674 .- 1070-664X. ; 21:7
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Abstract
Ämnesord
Stäng
- The Kelvin-Helmholtz instability in an ionized plasma is studied with a focus on the magnetic field generation via the Biermann battery (baroclinic) mechanism. The problem is solved by using direct numerical simulations of two counter-directed flows in 2D geometry. The simulations demonstrate the formation of eddies and their further interaction and merging resulting in a large single vortex. In contrast to general belief, it is found that the instability generated magnetic field may exhibit significantly different structures from the vorticity field, despite the mathematically identical equations controlling the magnetic field and vorticity evolution. At later stages of the nonlinear instability development, the magnetic field may keep growing even after the hydrodynamic vortex strength has reached its maximum and started decaying due to dissipation.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- SIMULATIONS
- RAYLEIGH-TAYLOR INSTABILITY
- LASER-PRODUCED PLASMAS
- DISKS
- INERTIAL FUSION
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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