Inverse transfer of magnetic helicity in supersonic magnetohydrodynamic turbulence
| dc.contributor.author | Teissier, Jean-Mathieu | |
| dc.contributor.author | Müller, Wolf-Christian | |
| dc.date.accessioned | 2022-05-10T12:09:07Z | |
| dc.date.available | 2022-05-10T12:09:07Z | |
| dc.date.issued | 2020 | |
| dc.date.updated | 2022-05-05T01:06:44Z | |
| dc.description.abstract | The inverse transfer of magnetic helicity is studied through a fourth-order finite volume numerical scheme in the framework of compressible ideal magnetohydrodynamics (MHD), with an isothermal equation of state. Using either a purely solenoidal or purely compressive mechanical driving, a hydrodynamic turbulent steady-state is reached, to which small-scale magnetic helical fluctuations are injected. The steady-state root mean squared Mach numbers considered range from 0.1 to about 11. In all cases, a growth of magnetic structures is observed. While the measured magnetic helicity spectral scaling exponents are similar to the one measured in the incompressible case for the solenoidally-driven runs, significant deviations are observed even at relatively low Mach numbers when using a compressive driving. A tendency towards equipartition between the magnetic and kinetic fields in terms of energy and helicity is noted. The joint use of the helical decomposition in the framework of shell-to-shell transfer analysis reveals the presence of three distinct features in the global picture of a magnetic helicity inverse transfer. Those are individually associated with specific scale ranges of the advecting velocity field and commensurate helical contributions. | en |
| dc.identifier.eissn | 1742-6596 | |
| dc.identifier.issn | 1742-6588 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/16848 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-15626 | |
| dc.language.iso | en | en |
| dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | en |
| dc.subject.ddc | 530 Physik | de |
| dc.subject.other | magnetic helicity | en |
| dc.subject.other | supersonic magnetohydrodynamic turbulence | en |
| dc.subject.other | inverse transfer | en |
| dc.subject.other | magnetohydrodynamics | en |
| dc.subject.other | MHD | en |
| dc.title | Inverse transfer of magnetic helicity in supersonic magnetohydrodynamic turbulence | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.articlenumber | 012011 | en |
| dcterms.bibliographicCitation.doi | 10.1088/1742-6596/1623/1/012011 | en |
| dcterms.bibliographicCitation.issue | 1 | en |
| dcterms.bibliographicCitation.journaltitle | Journal of Physics: Conference Series | en |
| dcterms.bibliographicCitation.originalpublishername | IOP | en |
| dcterms.bibliographicCitation.originalpublisherplace | Bristol | en |
| dcterms.bibliographicCitation.volume | 1623 | en |
| tub.accessrights.dnb | free | en |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Zentrum für Astronomie und Astrophysik | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.institute | Zentrum für Astronomie und Astrophysik | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |