The Scaling of Turbulent Jets at Omega from Laboratory to Astrophysical Environments

Details The Scaling of Turbulent Jets at Omega from Laboratory to Astrophysical Environments The Scaling of Turbulent Jets at Omega from Laboratory to Astrophysical Environments

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..dppno3003c&link_type=abstract

American Physical Society, 46th Annual Meeting of the Division of Plasma Physics, 15-19 November, 2004, Savannah, GA. MEETING I

Physics

Plasma Physics

Scientific paper

We have fielded supersonic, directly-driven jet experiments on the Omega laser at the University of Rochester. Given the scalability of the Euler equations, these mm-sized jets, should scale to astrophysical environments such as those of Herbig-Haro objects and jet-driven supernovae that may involve jets with similar internal Mach numbers. Scalability still holds in the presence of radiation as long as the relative importance of radiative cooling is similar. However, both the laboratory and astrophysical jets have large (and different) Reynolds numbers and this complicates the scaling. Given sufficient time and shear, such jets will produce a turbulent flow that may or may not scale with Euler number. We discuss such scaling issues and the applicability of the Omega experiments to astrophysical objects

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