Matches in SemOpenAlex for { <https://semopenalex.org/work/W2050569161> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W2050569161 endingPage "513" @default.
- W2050569161 startingPage "513" @default.
- W2050569161 abstract "Abstract Spectral properties of convective magnetohydrodynamic (MHD) turbulence in two and three dimensions are studied by means of direct numerical simulations (Skandera D. & Müller W.-C. 2006). The investigated system is set up with a mean horizontal temperature gradient in order to avoid a development of elevator instabilities in a fully periodic box. All simulations are performed without mean magnetic field. The applied resolution is 512 3 and 2048 2 . The MHD equation are solved by a numerical code (Müller & Biskamp 2000) that uses a standard pseudospectral scheme. For removing of aliasing errors a spherical truncation method is employed. Obtained results are compared with predictions of various existing phenomenological theories for magnetohydrodynamic and convective turbulence (Müller & Biskamp 2000). While the three-dimensional system is found to operate in a Kolmogorov-like regime where buoyant forces have a negligible impact on the turbulence dynamics (relatively low Rayleigh number achieved in the simulation; Ra ∼10 6 ), the two-dimensional system exhibits interesting irregular quasi-oscillations between a buoyancy dominated Bolgiano-Obukhov-like regime of turbulence and a standard Iroshnikov-Kraichnan-like regime of turbulence (Müller & Biskamp 2000). The most important parameter determining the turbulent regime of 2D magnetoconvection, apart from a high Rayleigh number, seems to be the mutual alignment of velocity and magnetic fields. The non-linear dynamics and the interplay between individual fields are examined with different transfer functions that confirm basic assumptions about directions of energy transfer in spectral space. Kinetic, magnetic and temperature energy are transported by a turbulent cascade from large to smaller scales. The local/nonlocal character of the transport is tested for several individual terms in the governing equations. Moreover, other statistical quantities, e.g. probability density functions, are computed as well. A passive character of the temperature field in the investigated three-dimensional magnetoconvection is supported by computations of intermittency using extended self-similarity. The intermittency of the Elsasser field z + is in agreement with results from numerical simulations of isotropic MHD turbulence (Müller & Biskamp 2000). The intermittency of the temperature field is found to approximately agree with results of passive scalar measurements in hydrodynamic turbulence (Ruiz-Chavarria, Baudet & Ciliberto 1996)." @default.
- W2050569161 created "2016-06-24" @default.
- W2050569161 creator A5061695591 @default.
- W2050569161 creator A5080468745 @default.
- W2050569161 date "2006-08-01" @default.
- W2050569161 modified "2023-09-27" @default.
- W2050569161 title "Spectral properties of magnetohydrodynamic convection with mean horizontal temperature gradient" @default.
- W2050569161 cites W1981923039 @default.
- W2050569161 cites W2049075035 @default.
- W2050569161 doi "https://doi.org/10.1017/s1743921307001032" @default.
- W2050569161 hasPublicationYear "2006" @default.
- W2050569161 type Work @default.
- W2050569161 sameAs 2050569161 @default.
- W2050569161 citedByCount "0" @default.
- W2050569161 crossrefType "journal-article" @default.
- W2050569161 hasAuthorship W2050569161A5061695591 @default.
- W2050569161 hasAuthorship W2050569161A5080468745 @default.
- W2050569161 hasBestOaLocation W20505691611 @default.
- W2050569161 hasConcept C10899652 @default.
- W2050569161 hasConcept C115260700 @default.
- W2050569161 hasConcept C121332964 @default.
- W2050569161 hasConcept C15476950 @default.
- W2050569161 hasConcept C189223162 @default.
- W2050569161 hasConcept C196558001 @default.
- W2050569161 hasConcept C2781065038 @default.
- W2050569161 hasConcept C30475298 @default.
- W2050569161 hasConcept C31532427 @default.
- W2050569161 hasConcept C42471609 @default.
- W2050569161 hasConcept C538625479 @default.
- W2050569161 hasConcept C57879066 @default.
- W2050569161 hasConcept C62520636 @default.
- W2050569161 hasConcept C74650414 @default.
- W2050569161 hasConceptScore W2050569161C10899652 @default.
- W2050569161 hasConceptScore W2050569161C115260700 @default.
- W2050569161 hasConceptScore W2050569161C121332964 @default.
- W2050569161 hasConceptScore W2050569161C15476950 @default.
- W2050569161 hasConceptScore W2050569161C189223162 @default.
- W2050569161 hasConceptScore W2050569161C196558001 @default.
- W2050569161 hasConceptScore W2050569161C2781065038 @default.
- W2050569161 hasConceptScore W2050569161C30475298 @default.
- W2050569161 hasConceptScore W2050569161C31532427 @default.
- W2050569161 hasConceptScore W2050569161C42471609 @default.
- W2050569161 hasConceptScore W2050569161C538625479 @default.
- W2050569161 hasConceptScore W2050569161C57879066 @default.
- W2050569161 hasConceptScore W2050569161C62520636 @default.
- W2050569161 hasConceptScore W2050569161C74650414 @default.
- W2050569161 hasIssue "S239" @default.
- W2050569161 hasLocation W20505691611 @default.
- W2050569161 hasOpenAccess W2050569161 @default.
- W2050569161 hasPrimaryLocation W20505691611 @default.
- W2050569161 hasRelatedWork W1981188201 @default.
- W2050569161 hasRelatedWork W2003216382 @default.
- W2050569161 hasRelatedWork W2013088737 @default.
- W2050569161 hasRelatedWork W2060611786 @default.
- W2050569161 hasRelatedWork W2230685685 @default.
- W2050569161 hasRelatedWork W2792713063 @default.
- W2050569161 hasRelatedWork W3106313340 @default.
- W2050569161 hasRelatedWork W3199964956 @default.
- W2050569161 hasRelatedWork W4299904463 @default.
- W2050569161 hasRelatedWork W4323067004 @default.
- W2050569161 hasVolume "2" @default.
- W2050569161 isParatext "false" @default.
- W2050569161 isRetracted "false" @default.
- W2050569161 magId "2050569161" @default.
- W2050569161 workType "article" @default.