On the relevance of bubbles and potential flows for stellar convection
Recently Pasetto et al. have proposed a new method to derive a convection theory appropriate for the implementation in stellar evolution codes. Their approach is based on the simple physical picture of spherical bubbles moving within a potential flow in dynamically unstable regions, and a detailed c...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2016
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/93771 https://academic.oup.com/mnras/article/457/4/4441/2588982 https://ri.conicet.gov.ar/handle/11336/35721 |
| Aporte de: |
| id |
I19-R120-10915-93771 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Astronomía convection stars: evolution stars: fundamental parameters |
| spellingShingle |
Astronomía convection stars: evolution stars: fundamental parameters Miller Bertolami, Marcelo Miguel Viallet, Maxime Prat, Vincent Barsukow, Wasilij Weiss, Achim On the relevance of bubbles and potential flows for stellar convection |
| topic_facet |
Astronomía convection stars: evolution stars: fundamental parameters |
| description |
Recently Pasetto et al. have proposed a new method to derive a convection theory appropriate for the implementation in stellar evolution codes. Their approach is based on the simple physical picture of spherical bubbles moving within a potential flow in dynamically unstable regions, and a detailed computation of the bubble dynamics. Based on this approach, the authors derive a new theory of convection which is claimed to be parameter-free, non-local and time-dependent. This is a very strong claim, as such a theory is the holy grail of stellar physics. Unfortunately, we have identified several distinct problems in the derivation which ultimately render their theory inapplicable to any physical regime. In addition, we show that the framework of spherical bubbles in potential flows is unable to capture the essence of stellar convection, even when equations are derived correctly. |
| format |
Articulo Articulo |
| author |
Miller Bertolami, Marcelo Miguel Viallet, Maxime Prat, Vincent Barsukow, Wasilij Weiss, Achim |
| author_facet |
Miller Bertolami, Marcelo Miguel Viallet, Maxime Prat, Vincent Barsukow, Wasilij Weiss, Achim |
| author_sort |
Miller Bertolami, Marcelo Miguel |
| title |
On the relevance of bubbles and potential flows for stellar convection |
| title_short |
On the relevance of bubbles and potential flows for stellar convection |
| title_full |
On the relevance of bubbles and potential flows for stellar convection |
| title_fullStr |
On the relevance of bubbles and potential flows for stellar convection |
| title_full_unstemmed |
On the relevance of bubbles and potential flows for stellar convection |
| title_sort |
on the relevance of bubbles and potential flows for stellar convection |
| publishDate |
2016 |
| url |
http://sedici.unlp.edu.ar/handle/10915/93771 https://academic.oup.com/mnras/article/457/4/4441/2588982 https://ri.conicet.gov.ar/handle/11336/35721 |
| work_keys_str_mv |
AT millerbertolamimarcelomiguel ontherelevanceofbubblesandpotentialflowsforstellarconvection AT vialletmaxime ontherelevanceofbubblesandpotentialflowsforstellarconvection AT pratvincent ontherelevanceofbubblesandpotentialflowsforstellarconvection AT barsukowwasilij ontherelevanceofbubblesandpotentialflowsforstellarconvection AT weissachim ontherelevanceofbubblesandpotentialflowsforstellarconvection |
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Repositorios |
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1764820491728584708 |