[FLASH-USERS] LaserSlab simulation of a thin target

[Tomer Catabi]

 Hello again Flash users and developers,
after trying to increase the resolution as suggested (to no avail), I
noticed that when I configure the simulation with a thicker target there is
still an angle to the target edge. In the attached picture you can
(hopefully) see that the angle of the thicker target's edge is similar to
the angle of the thin target which isn't a problem in the case of thicker
targets.
I suspect that the issue is caused by the refinement process, which makes a
density gradient.
I tried increasing the refine_cutoff and derefine_cutoff parameters of the
density refine variable but the issue persists.
I would greatly appreciate it if anybody has any suggestions.

kind regards,
Tomer

On Wed, Oct 12, 2022 at 6:48 PM Tomer Catabi <tomercatabi at mail.tau.ac.il>
wrote:

> Hello Flash users and developers,
>
> I am new to FLASH and am trying to make a simulation of laser induced
> plasma of a thin target (800 nm), similar to the laserslab example.
> I have changed the refinement so that the target is visible, but it seems
> that unlike when running the simulation with a thicker target, the target's
> thickness is not constant in respect to the 'z' axis. Has anyone
> encountered this issue before? or maybe someone has an idea of what is the
> cause of the issue?
> I attached a graph of the electron number density on the 'z' axis before
> the laser interaction in which the issue appears.
>
> Kind regards,
> Tomer
> [image: 0.0 nsns_1d-Profile_z_El_number_density.png]
>
>
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