| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m16d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP7W/3AS39U5 | |||
| Repository | sid.inpe.br/mtc-m19/2011/11.25.13.17 (restricted access) | |||
| Last Update | 2011:12.26.17.19.40 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m19/2011/11.25.13.17.57 | |||
| Metadata Last Update | 2018:06.05.04.25.04 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| DOI | 10.1088/2041-8205/735/1/L9 | |||
| ISSN | 2041-8205 2041-8213 | |||
| Citation Key | RempelChiaBran:2011:LaCoSt | |||
| Title | Lagrangian coherent structures in nonlinear dynamos  | |||
| Year | 2011 | |||
| Month | July | |||
| Access Date | 2024, May 04 | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 2454 KiB | |||
| 2. Context | ||||
| Author | 1 Rempel, E. L. 2 Chian, A. C. L. 3 Brandenburg, A. | |||
| Group | 1 2 DGE-CEA-INPE-MCT-BR | |||
| Affiliation | 1 Institute of Aeronautical Technology (ITA) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 NORDITA, AlbaNova University Ctr, Stockholm, Sweden | |||
| Author e-Mail Address | 1 rempel@ita.br 2 abraham.chian@gmail.com 3 brandenb@nordita.org | |||
| e-Mail Address | tereza@sid.inpe.br | |||
| Journal | Astrophysical Journal Letters | |||
| Volume | 735 | |||
| Number | 1 | |||
| Pages | L9 | |||
| History (UTC) | 2011-12-08 16:24:27 :: tereza@sid.inpe.br -> marciana :: 2011 2011-12-26 17:19:49 :: marciana -> administrator :: 2011 2018-06-05 04:25:04 :: administrator -> marciana :: 2011 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | chaos dynamo magnetohydrodynamics (MHD | |||
| Abstract | Turbulence and chaos play a fundamental role in stellar convective zones through the transport of particles, energy, and momentum, and in fast dynamos, through the stretching, twisting, and folding of magnetic flux tubes. A particularly revealing way to describe turbulent motions is through the analysis of Lagrangian coherent structures (LCSs), which are material lines or surfaces that act as transport barriers in the fluid. We report the detection of LCSs in helical MHD dynamo simulations with scale separation. In an Arnold-Beltrami-Childress flow, two dynamo regimes, a propagating coherent mean-field regime and an intermittent regime, are identified as the magnetic diffusivity is varied. The sharp contrast between the chaotic tangle of attracting and repelling LCSs in both regimes permits a unique analysis of the impact of the magnetic field on the velocity field. In a second example, LCSs reveal the link between the level of chaotic mixing of the velocity field and the saturation of a large-scale dynamo when the magnetic field exceeds the equipartition value. | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Lagrangian coherent structures... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| User Group | administrator tereza@sid.inpe.br marciana | |||
| Visibility | shown | |||
| Archiving Policy | denypublisher denyfinaldraft | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 | |||
| Next Higher Units | 8JMKD3MGPCW/3EU29DP | |||
| Host Collection | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination format isbn label lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url | |||
| 7. Description control | ||||
| e-Mail (login) | marciana | |||
| update | ||||