Rayleigh-Taylor instability 

Application of HCZ model (Re=2048, density ratio=3)  Specific parameters:

computational domain 256x1028

0.2465 !psi_max
0.0250 !psi_min
0.12 !rho_h , density of fluid
0.04 !rho_l , density of gas
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2048.  ! Re
0.04    !V1 characteristic vel.
50000   !t_max
1600   !Nwri
0.01   !Kappa