[FLASH-USERS] laser vs hydro boundary

[Antoine Gintrand]

Dear Flash users,

I am having a problem was a laser slab simulation in 2D with a 2D model of
laser (not 3D to 2D). The simulation represents the heating by laser of a
cylinder from one side of the cylinder axis. The cylinder target will be
ablated by the laser and fill the box until the density in the box is
homogeneous.

Here, I would like to have reflective boundaries for the flow at all edges
of my 2D box in order to confine the matter inside it during the heating by
laser.

First I notice that the reflective boundary also applies to the laser rays.
Thus when the ray arrives at a reflective boundary it is also reflected
back to the interior of the box.

Question 1)

Can I have an option to separate the boundaries for the laser and for the
flow?

Question 2)

Is there a way to confine the plasma with reflective boundaries for the 4
edges
of the box and still, be able to let the laser heat the cylinder from a
side? Now my problem is that if I put a reflective boundary where the laser
comes from, the laser cannot enter the box, there is an error message and
the code crashes. Also If I try to set up the laser lens inside the box to
have the source of energy directly inside the closed box, it is not allowed
(error message :  Error message is ed_beamsCheck2DRec: Beam lens
(partially) inside the domain! ).

Any suggestions on those issues would really help me a lot,

Thank you very much for the help,

All the best,

Antoine
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