Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2000
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=57100921 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866815585649688576 |
|---|---|
| author | Dinshaw Balsara |
| author_facet | Dinshaw Balsara |
| contents | Numerical simulation of dynamos with scale separation Dinshaw Balsara Física, Astronomía y Matemáticas MHD MAGNETIC FIELDS GALAXY: STRUCTURE METHODS: NUMERICAL Explaining the origin of magnetic elds in astrophysical bodies has long beena challenge for theorists. While mean eld dynamo theory has been developedfor a while this theory runs into several problems. The rapid growth of small scalemagnetic elds which were thought to quench the emergence of larger scale elds wasthought to be a major problem. A way out of this dilemma exists through invokingthe theory of fast dynamos. However, the problem with fast dynamos is that thetheory cannot be developed as much as one would like, making it necessary to rely onsimulations. We provide simulations of dynamos with adequate resolution to havea separation of scales. Dynamo solutions are shown to be possible with magneticelds growing rapidly on all scales including those larger than the forcing lengthscales. We discuss the energy bearing structures and spectra of such dynamos. 2000 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57100921 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.9 |
| format | Artículo científico |
| id | redalyc_57100921 |
| language | en |
| publishDate | 2000 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Numerical simulation of dynamos with scale separation Dinshaw Balsara Física, Astronomía y Matemáticas MHD MAGNETIC FIELDS GALAXY: STRUCTURE METHODS: NUMERICAL Numerical simulation of dynamos with scale separation Dinshaw Balsara Física, Astronomía y Matemáticas MHD MAGNETIC FIELDS GALAXY: STRUCTURE METHODS: NUMERICAL Explaining the origin of magnetic elds in astrophysical bodies has long beena challenge for theorists. While mean eld dynamo theory has been developedfor a while this theory runs into several problems. The rapid growth of small scalemagnetic elds which were thought to quench the emergence of larger scale elds wasthought to be a major problem. A way out of this dilemma exists through invokingthe theory of fast dynamos. However, the problem with fast dynamos is that thetheory cannot be developed as much as one would like, making it necessary to rely onsimulations. We provide simulations of dynamos with adequate resolution to havea separation of scales. Dynamo solutions are shown to be possible with magneticelds growing rapidly on all scales including those larger than the forcing lengthscales. We discuss the energy bearing structures and spectra of such dynamos. 2000 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57100921 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.9 |
| title | Numerical simulation of dynamos with scale separation |
| topic | Física, Astronomía y Matemáticas MHD MAGNETIC FIELDS GALAXY: STRUCTURE METHODS: NUMERICAL |
| url | https://www.redalyc.org/articulo.oa?id=57100921 |