Start a new simulation from a privious one

Mustaf

Hi,

I want to start my new simulation from the end of my previous simulation. Is it possible with DualSPHysics ? And if yes, how can I proceed in order to do that ?
Thank you in advance.

Ps : My objective is to save time and space (always 2/3 days with the same calculations before to get the interesting results).

Mustaf

Mustaf

I found "a solution", I collected the last geometry created from the simulation and I converted it in fluid particles for the next one. But with this method we loose all the values since we have an initialisation. Any suggestions ?

Alex

-partbegin:begin[:first] dir
Specifies the beginning of the simulation starting from a given PART
(begin) and located in the directory (dir), (first) indicates the
number of the first PART to be generated

Mustaf

Hi Alex,

First, thanks for this quick reply. But can you be more accurate ? So I have to modify the .sh file (after the $partvtk). And then I have to add for exemple :

-partbegin:PartFluid_0050.vtk:[PartFluid_0051.vtk] /Directory/to/partfluid/0050/

Is it correct ?

And also, the geometry will need to be replaced ? I mean the PartFluid_0050.vtk replacing the initial fluid in the xml file.

Alex

Please send to us an email to dualsphysics@gmail.com and I will reply to you when I check it first how exactly works. Then I will post it also here

Regards

Mustaf

After several tests, I found something this morning. I Can continue a previous simulation but it doesn't work if a modify some parameters. As I don't know if it was the good procedure, I prefer to wait your response.

Alex

let us imagine that you have the folder CASE_OUT with 10 Output files, so that, till Part0010.bi2

you can use -partbegin:2[:3] /direction/to/the/begin/part/ but check that:
1) do not run again GenCase or remove/create the folder CASE_OUT
2) you have modify TimeMax in the XML folder (the input of DualSPHysics, the one generated by GenCase