[FLASH-USERS] Noob question on implementing a wind condition with variable velocity

[Ryan Farber]

Hi Jonathan,

Since you want to know your position in the y-axis, I would think that yes
Grid_bcApplyToRegionSpecialized would be the way to go since you'll have
access to the blockId so you can call Grid_getCellCoords. This is also in
the docstring for GbATRS:

...several extra arguments over Grid_bcApplyToRegion. One is the blockHandle,
which allows

!!   access to the coordinates information.

Best,
--------
Ryan


On Thu, May 25, 2023 at 3:36 PM JONATHAN PROCTOR <J.Proctor-2016 at hull.ac.uk>
wrote:

> Hi All,
>
> I'm a new user to FLASH. I've been attempting to implement a crossflow
> into my simulations with a velocity that is dependent upon the position in
> the y axis. So far, I've attempted to edit the Grid_bcApplyToRegion file by
> overwriting the DIODE boundary condition with little success. Should I
> instead attempt this in a Grid_bcApplyToRegionSpecialized file? And would
> I have to define the coordinates system as done in the simulation_initBlock
> file?
>
> Thank you in advance!
>
> Jonathan
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