[FLASH-USERS] initial conditions

[Dean Townsley]

Hi Andrea,

I have done this by "overriding" the Simulation_adjustEvolution() 
function.  (That is, copying the file Simulation_adjustEvolution.F90 
into your SimulationMain sub-unit and then modifying it to do what you 
want.)  This function is called after each time step, so you can put in 
a check for the time and then do something to the grid at a certain time 
in the simulation.  I have used this to run  a flat flame for a bit and 
then add a small perturbation to its surface by shifting data.  You 
should be able to do something similar to add a pressure pulse at a 
particular time.

I hope that helps,
Dean


On 12/26/2013 08:27 AM, andrea costa wrote:
> Hi all,
>
> I want to add a pressure pulse once the run has started.
> As if a delayed initial condition is considered. Someone can tell me 
> how to do it
> thanks
> andrea