[FLASH-USERS] How can I set the boundary condition as "periodic" in LaserSlab-like example

[Klaus Weide]

On Fri, 17 Jul 2020, Sang Yun Shin wrote:

> I'm running FLASH simulations based on the LaserSlab example. I have
> modified the original cylindrical geometry to cartesian geometry.
> Now I'd like to set the y boundary condition to periodic.
> 
> I understand that I need to set the following conditions to "periodic" for
> the fluid flow.
> yl_boundary_type = "periodic"
> yr_boundary_type = "periodic"
> 
> However, I'm not sure how to set the following conditions regarding
> radiation transport and heat conduction
> rt_mgdYlBoundaryType = "neumann"
> rt_mgdYrBoundaryType = "neumann"
> diff_eleYlBoundaryType = "neumann"
> diff_eleYrBoundaryType = "neumann"
> 
> To my knowledge, there's no option to set these to "periodic".
> I also confirmed that using "neumann" or "dirichlet" conditions doesn't
> yield correct "periodic" results.
> How can I get the correct periodic results?

The last word on this is, to my knowledge, still this:

 http://flash.uchicago.edu/pipermail/flash-users/2015-October/001802.html

Klaus