[FLASH-USERS] [EXT] how to modify hydro update ?

[Marissa B. P. Adams]

Hi Antoine,

Have you considered using a "mask"? Depending on the conditions, i.e. if
you want this to be the case for all time from the beginning, you can do
this in *Simulation_initBlock.F90*. It'd look something like this:

call Grid_putPointData(blockId, CENTER, BDRY_VAR, EXTERIOR, axis, 1.0)

See section 14.1.3.1. Implementation of Stationary Rigid Body in a
Simulation Domain for Unsplit Hydro Solver, in the user manual.

I would also recommend using the routine *Simulation_adjustEvolution.F90*
for accessing things for each time step or advancement from the Driver.

These are just my initial thoughts! I hope they can help.
Marissa


On Sun, Sep 26, 2021 at 5:20 AM Antoine Gintrand <antoine.gintrand at gmail.com>
wrote:

> Dear Flash users,
>
> I need to modify the code for a "laser slab" type simulation.
>
> The goal is to impose for a certain condition on the cell, that the
> fluid cannot move during the hydro update at a given time step.
> The cell can only increase his internal energy (laser, heat conduction
> ...) in this
> condition.
>
> Thus, I think that I probably need to specify in the hydro part of the
> source code that the velocity should be zero during the computation of the
> fluxes.
>
> The problem is that I do not know which file I should modify to impose
> that
> during the update of the hydro step.
>
> Any suggestion would be highly appreciated,
>
> thank you for your help,
>
> All the best,
>
> Antoine
>


-- 
%---------------------------------------------%
Marissa B. P. Adams
(she/her/hers)
Phd Candidate, University of Rochester
*E-mail:* madams at pas.rochester.edu
*Website:* https://www.pas.rochester.edu/~madams
<http://www.pas.rochester.edu/~madams#>
*Current Location:*
Occupied Seneca Land
471 Bausch and Lomb Hall
University of Rochester
Rochester, NY 14627
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