Table 1 Dimensionless parameters and their physical meaning

From: How high energy fluxes may affect Rayleigh–Taylor instability growth in young supernova remnants

Dimensionless number

SN1993J

NIF experiment

Physical meaning

λc/L

~ 10−4

~ 10−8

Highly collisional

Re

~ 106

~ 107

Negligible viscosity

Energy flux ratio R

~ 103

~ 2

Energy fluxes are important

  1. Both SN1993J (at 0.1 years) and the laboratory experiment have characteristic length L ≫ λc, the mean free path for ion–ion collisions, in their denser shocked layers. They also have large Reynolds number, Re = UL/ν, where U is the characteristic velocity and ν is the kinematic viscosity. The text discusses the energy flux ratio R
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