Traditional KH instability problem

ze miscellaneous
1

Hi,

Anyone working on Traditional KH instability related simulations.

I faced some problems in this regard:

Try to understand how 3D perturbation is Zero here?

eps3D = 0. ! 3D perturbation

I think it’s 1. .

eps3D = 1. ! 3D perturbation

If it’s zero then it’s purely 2D perturbation right?

I will be very appreciative if you look into it and share your valuable comments.

Thank you.

Best regards,