[FLASH-USERS] Extra Refinement for Area

[Lewis,Sean]

Hi Thomas,

I am attempting something very similar (though for an astrophysical simulation). Assuming your setup uses Paramesh, there’s a set of routines meant for defining a specific region to be refined: /source/Grid/GridMain/paramesh/{Grid_markRefineSpecialized.F90,gr_markInRectangle.F90}. Grid_markRefineSpecialized can be called by Grid_markRefineDerefine() and given a specific rectangular (or spherical/elliptical) region to mark all blocks within for refinement.

I personally have not gotten this behavior to work however, the grid seems to just ignore the refinement region, but it might be a place for you to start. I’m still running tests on this, but if anyone else has used this routine and thinks it may be good for Thomas please chime in. I’ll let you know if I make any progress with this.

-Sean

Sean C. Lewis
Doctoral Candidate
Department of Physics
Drexel University

From: flash-users <flash-users-bounces at flash.rochester.edu> on behalf of "Kaldawi, Thomas" <Tkal at lle.rochester.edu>
Date: Tuesday, June 6, 2023 at 10:28 AM
To: "flash-users at flash.rochester.edu" <flash-users at flash.rochester.edu>
Subject: [FLASH-USERS] Extra Refinement for Area


External.
Hello,

I am trying to add refinement to a specific area of the LaserSlab simulation. In the Pdf I sent, I have the entire simulation, which is just a target, support, and two very thin foils at the bottom connected to the support. As you can see, I have refined the edges of the target and the support; however, the foils are too thin to be recognized. If I increase the total blocks in the y direction to ~70, the two foils can easily be distinguished, but I do not want this much refinement in the rest of the simulation. Is there a way to simply add blocks/refine only a certain area in the simulation?

For clarification, the foils are two different sizes, one is half a micron, and the other is around 30 nanometers; thus, I need a fairly high level of refinement for that area. Also, the foils are supposed to connect from the yellow/green support to the left wall. However, they cut off before reaching the left side of the window. So, the red foil is indeed supposed to appear between those sections, but for some reason it just cuts off even more than the second foil.

Thanks!
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