A simulation of solar convection at supergranulation scale
(2002) In Nuovo Cimento C. Colloquia on Physics 25(5-6). p.523-528- Abstract
- We present here numerical simulations of surface solar convection which cover a box of 30 x 30 x 3.2 Mm(3) with a resolution of 315 x 315 x 82, which is used to investigate the dynamics of scales larger than granulation. No structure resembling supergranulation is present; possibly higher Reynolds numbers (i.e. higher numerical resolution), or magnetic fields, or greater depth are necessary. The results also show interesting aspects of granular dynamics which are briefly presented, like extensive p-mode ridges in the k-w diagram and a ringlike distribution of horizontal vorticity around granules. At large scales, the horizontal velocity is much larger than the vertical velocity and the vertical motion is dominated by p-mode oscillations.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/316867
- author
- Rieutord, M ; Ludwig, Hans-Günter LU ; Roudier, T ; Nordlund, A and Stein, R
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nuovo Cimento C. Colloquia on Physics
- volume
- 25
- issue
- 5-6
- pages
- 523 - 528
- publisher
- Società italiana di fisica
- external identifiers
-
- wos:000181412800002
- scopus:0036765990
- ISSN
- 1124-1896
- language
- English
- LU publication?
- yes
- id
- 8597c856-4a59-460f-9459-65611653ac10 (old id 316867)
- date added to LUP
- 2016-04-01 16:31:46
- date last changed
- 2024-01-26 08:35:38
@article{8597c856-4a59-460f-9459-65611653ac10, abstract = {{We present here numerical simulations of surface solar convection which cover a box of 30 x 30 x 3.2 Mm(3) with a resolution of 315 x 315 x 82, which is used to investigate the dynamics of scales larger than granulation. No structure resembling supergranulation is present; possibly higher Reynolds numbers (i.e. higher numerical resolution), or magnetic fields, or greater depth are necessary. The results also show interesting aspects of granular dynamics which are briefly presented, like extensive p-mode ridges in the k-w diagram and a ringlike distribution of horizontal vorticity around granules. At large scales, the horizontal velocity is much larger than the vertical velocity and the vertical motion is dominated by p-mode oscillations.}}, author = {{Rieutord, M and Ludwig, Hans-Günter and Roudier, T and Nordlund, A and Stein, R}}, issn = {{1124-1896}}, language = {{eng}}, number = {{5-6}}, pages = {{523--528}}, publisher = {{Società italiana di fisica}}, series = {{Nuovo Cimento C. Colloquia on Physics}}, title = {{A simulation of solar convection at supergranulation scale}}, volume = {{25}}, year = {{2002}}, }