RT Instability

Two simulations have the same following parameters:

Temperature=20K

Density varies as:

Same wind launching radius (1 AU) and resolution (320*320 base grid of one quarter plane with 3 level of AMR)

Wavenumber: 40 waves of perturbation in 2 radian

Density of Perturbation: Both are 2.5% of the peak the density.

Two simulations only have tiny difference in velocity:

[[Image(lowvelocity0200.png,width=400)]][[Image(highvelocity0200.png,width=400)]]

lowvelocity.gif​highvelocity.gif​

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