Thermochemical convection in a slowly rotating spherical shell: a transition between prograde and retrograde flows

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F24%3A00587144" target="_blank" >RIV/67985530:_____/24:00587144 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/03091929.2024.2345611" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/03091929.2024.2345611</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/03091929.2024.2345611" target="_blank" >10.1080/03091929.2024.2345611</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermochemical convection in a slowly rotating spherical shell: a transition between prograde and retrograde flows

Popis výsledku v původním jazyce

We numerically investigate thermochemically-driven convection in a spherical shell at a high Ekman number for a range of Rayleigh numbers, Prandtl numbers and buoyancy ratios. Rotating convection displays a nearly axisymmetric large-scale structure and appears mostly unaffected by the nature (thermal or chemical) of the driving buoyancy source. We observe both precession directions, prograde and retrograde, of convection structures and identify a snap-through transition between the prograde and retrograde flows in the parameter space spanned by the Rayleigh and Prandtl numbers. Equatorially wall-attached and spiralling columnar convection structures, which typically emerge in rapidly rotating shells, are not observed.

Název v anglickém jazyce

Thermochemical convection in a slowly rotating spherical shell: a transition between prograde and retrograde flows

Popis výsledku anglicky

We numerically investigate thermochemically-driven convection in a spherical shell at a high Ekman number for a range of Rayleigh numbers, Prandtl numbers and buoyancy ratios. Rotating convection displays a nearly axisymmetric large-scale structure and appears mostly unaffected by the nature (thermal or chemical) of the driving buoyancy source. We observe both precession directions, prograde and retrograde, of convection structures and identify a snap-through transition between the prograde and retrograde flows in the parameter space spanned by the Rayleigh and Prandtl numbers. Equatorially wall-attached and spiralling columnar convection structures, which typically emerge in rapidly rotating shells, are not observed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysical and Astrophysical Fluid Dynamics

ISSN

0309-1929

e-ISSN

1029-0419

Svazek periodika

118

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

120-129

Kód UT WoS článku

001235413400001

EID výsledku v databázi Scopus

2-s2.0-85194761428