von Karman-Howarth Equation for Hall Magnetohydrodynamics: Hybrid Simulations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F18%3A00506444" target="_blank" >RIV/68378289:_____/18:00506444 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.3847/2041-8213/aabc06" target="_blank" >https://iopscience.iop.org/article/10.3847/2041-8213/aabc06</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/2041-8213/aabc06" target="_blank" >10.3847/2041-8213/aabc06</a>
Alternative languages
Result language
angličtina
Original language name
von Karman-Howarth Equation for Hall Magnetohydrodynamics: Hybrid Simulations
Original language description
A dynamical vectorial equation for homogeneous incompressible Hall-magnetohydrodynamic( MHD) turbulence together with the exact scaling law for third-order correlation tensors, analogous to that for the incompressible MHD, is rederived and applied to the results of two-dimensional hybrid simulations of plasma turbulence. At large (MHD) scales the simulations exhibit a clear inertial range where the MHD dynamic law is valid. In the sub-ion range the cascade continues via the Hall term, but the dynamic law derived in the framework of incompressible Hall-MHD equations is obtained only in a low plasma beta simulation. For a higher beta plasma the cascade rate decreases in the sub-ion range and the change becomes more pronounced as the plasma beta increases. This break in the cascade flux can be ascribed to nonthermal (kinetic) features or to others terms in the dynamical equation that are not included in the Hall-MHD incompressible approximation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal Letters
ISSN
2041-8205
e-ISSN
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Volume of the periodical
857
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
L19
UT code for WoS article
000430632600004
EID of the result in the Scopus database
2-s2.0-85046471052