Numerical Simulations of Oscillations in Solar Corona Excited by Vortex Shedding
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00567453" target="_blank" >RIV/67985815:_____/22:00567453 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/22:43905121
Result on the web
<a href="https://hdl.handle.net/11104/0338709" target="_blank" >https://hdl.handle.net/11104/0338709</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4357/aca40d" target="_blank" >10.3847/1538-4357/aca40d</a>
Alternative languages
Result language
angličtina
Original language name
Numerical Simulations of Oscillations in Solar Corona Excited by Vortex Shedding
Original language description
We study transverse oscillations of plasma structures in the solar corona excited by vortex shedding solving the full set of the 3D ideal time-dependent magnetohydrodynamic equations. To present how the creation of vortices and excited oscillations depend on the initial flow speed and various values of the magnetic field, we performed a parametric study for two cases, an interaction of a steady flow with a rigid and spatially fixed cylindrical obstacle, and with a cylinder fixed at the boundaries. We show that generated vortices can excite oscillations, e.g., transverse (kink), in the solar corona, for example in coronal loops, filaments, flux ropes, or similar magnetic structures. It has been found that the oscillation period is close to the theoretically predicted value. Moreover, we study the dependence of the Strouhal number with respect to the magnetic field under the conditions of the solar atmosphere.
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
<a href="/en/project/GC21-16508J" target="_blank" >GC21-16508J: Sub-THz band: a new perspective for studying the origin of solar and stellar flares through observations and numerical simulations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
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
ISSN
0004-637X
e-ISSN
1538-4357
Volume of the periodical
941
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
124
UT code for WoS article
000897807100001
EID of the result in the Scopus database
2-s2.0-85144929485