Academic literature on the topic 'Compressible MHD'

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Journal articles on the topic "Compressible MHD"

1

Valdettaro, Lorenzo, and Maurice Meneguzzi. "Compressible MHD in Spherical Geometry." International Astronomical Union Colloquium 130 (1991): 80–85. http://dx.doi.org/10.1017/s0252921100079434.

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AbstractThe generation of magnetic field by a conducting, compressible fluid inside a spherical shell is studied by direct numerical simulations. A pseudo-spectral method is used in order to resolve accurately all the scales present in the problem. The range of parameters considered is the following: a unit Prandtl number, Rayleigh numbers up to 100 times critical, Taylor number 625, an aspect ratio of 2, a Mach number slightly less than 1, and pressure and temperature scale heights of the order of the thickness of the shell. A dynamo effect is observed for magnetic Prandtl numbers larger than
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2

Kowal, Grzegorz, and A. Lazarian. "Scaling Relations of Compressible MHD Turbulence." Astrophysical Journal 666, no. 2 (2007): L69—L72. http://dx.doi.org/10.1086/521788.

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3

Zank, G. P., and W. H. Matthaeus. "The equations of reduced magnetohydrodynamics." Journal of Plasma Physics 48, no. 1 (1992): 85–100. http://dx.doi.org/10.1017/s002237780001638x.

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The equations of high- and low-beta reduced magnetohydrodynamics (RMHD) are considered anew in order to elucidate the relationship between compressible MHD and RMHD and also to distinguish RMHD from recently developed models of nearly incompressible MHD. Our results, summarized in two theorems, provide the conditions under which RMHD represents a valid reduction of compressible MHD. The equations for low-beta RMHD and high-beta RMHD are shown to be identical. Furthermore, as a direct consequence of our analysis, the conditions under which both two-dimensional incompressible MHD (in terms of th
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4

Chanteur, G. "Localized Alfvénic solutions of nondissipative and compressible MHD." Nonlinear Processes in Geophysics 6, no. 3/4 (1999): 145–48. http://dx.doi.org/10.5194/npg-6-145-1999.

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Abstract. Alfvénic solutions of nondissipative MHD are entirely determined by their magnetic configuration. With the supplementary assumption of incompressibility any solenoidal field can be used to construct an Alfvénic solution. It is demonstrated that for nondissipative and compressible MHD the energy equation constrains the magnetic field of Alfvénic solutions to have a constant strength along field lines. Some topological solitons known in nondissipative and incompressible MHD do not have this property. New localized axisymmetric Alfvénic solutions of nondissipative and compressible MHD a
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5

WISNIEWSKI, MARTINA, RALF KISSMANN, and FELIX SPANIER. "Turbulence evolution in MHD plasmas." Journal of Plasma Physics 79, no. 5 (2013): 597–612. http://dx.doi.org/10.1017/s0022377813000147.

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AbstractTurbulence in the interstellar medium has been an active field of research in the last decade. Numerical simulations are the tool of choice in most cases. However, while there are a number of simulations on the market, some questions have not been answered finally. In this paper, we examine the influence of compressible and incompressible driving on the evolution of turbulent spectra in a number of possible interstellar medium scenarios. We conclude that the driving has an influence not only on the ratio of compressible to incompressible component but also on the anisotropy of turbulen
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6

王, 帅. "The Important Estimates for Compressible MHD Equations." Pure Mathematics 12, no. 08 (2022): 1305–11. http://dx.doi.org/10.12677/pm.2022.128143.

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7

Hesse, Michael, Joachim Birn, and Seiji Zenitani. "Magnetic reconnection in a compressible MHD plasma." Physics of Plasmas 18, no. 4 (2011): 042104. http://dx.doi.org/10.1063/1.3581077.

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8

Lu, Ming, Yi Du, and Zheng-an Yao. "Blow-up criterion for compressible MHD equations." Journal of Mathematical Analysis and Applications 379, no. 1 (2011): 425–38. http://dx.doi.org/10.1016/j.jmaa.2011.01.043.

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9

Cho, Jungyeon, and A. Lazarian. "Generation of compressible modes in MHD turbulence." Theoretical and Computational Fluid Dynamics 19, no. 2 (2005): 127–57. http://dx.doi.org/10.1007/s00162-004-0157-x.

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10

Oughton, S., W. H. Matthaeus, Minping Wan, and Tulasi Parashar. "Variance anisotropy in compressible 3-D MHD." Journal of Geophysical Research: Space Physics 121, no. 6 (2016): 5041–54. http://dx.doi.org/10.1002/2016ja022496.

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