Magnetohydrodynamic scaling: From astrophysics to the laboratory

Details Magnetohydrodynamic scaling: From astrophysics to the laboratory Magnetohydrodynamic scaling: From astrophysics to the laboratory

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001phpl....8.1804r&link_type=abstract

Physics of Plasmas, Volume 8, Issue 5, pp. 1804-1816 (2001).

Physics

48

Magnetohydrodynamics, Magnetohydrodynamics And Plasmas, Laboratory Studies Of Space- And Astrophysical-Plasma Processes, Supernova Remnants, Plasma Turbulence

Scientific paper

During the last few years, considerable progress has been made in simulating astrophysical phenomena in laboratory experiments with high-power lasers. Astrophysical phenomena that have drawn particular interest include supernovae explosions; young supernova remnants; galactic jets; the formation of fine structures in late supernovae remnants by instabilities; and the ablation-driven evolution of molecular clouds. A question may arise as to what extent the laser experiments, which deal with targets of a spatial scale of ~100 μm and occur at a time scale of a few nanoseconds, can reproduce phenomena occurring at spatial scales of a million or more kilometers and time scales from hours to many years. Quite remarkably, in a number of cases there exists a broad hydrodynamic similarity (sometimes called the ``Euler similarity'') that allows a direct scaling of laboratory results to astrophysical phenomena. A discussion is presented of the details of the Euler similarity related to the presence of shocks and to a special case of a strong drive. Constraints stemming from the possible development of small-scale turbulence are analyzed. The case of a gas with a spatially varying polytropic index is discussed. A possibility of scaled simulations of ablation front dynamics is one more topic covered in this paper. It is shown that, with some additional constraints, a simple similarity exists.

Affiliated with

Also associated with

No associations

Rating

Magnetohydrodynamic scaling: From astrophysics to the laboratory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetohydrodynamic scaling: From astrophysics to the laboratory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetohydrodynamic scaling: From astrophysics to the laboratory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-946419