Message by Gethyn Lewis:
Hi,
I have loaded a mesh into spis and can get a plot of the average plasma potential. All very good.
But if I simply click the UI-SPIS and SOLVER buttons again, I get a different value. I have not changed the Global parameters.
Is this expected? I would expect the results to be the same.
Does SPIS take the previous solutions and use them somehow in calculating the next results?
Should I be cleaning the data bus each time I use the solver?
Thanks for any help.
Gethyn
Message by abul anuar:
But if I simply click the UI-SPIS and SOLVER buttons again, I get a different value. I have not changed the Global parameters.
Is this expected? I would expect the results to be the same.
if you are using kinetic model (PIC), you should expect different values as the potential fluctuates. if maxwellian, your result should be the same
Does SPIS take the previous solutions and use them somehow in calculating the next results?
i think it does not
Should I be cleaning the data bus each time I use the solver?
i guess you should, but doing so means you have to redo your simulation set up from the beginning. My technique is to save your project just before you click the solver button which will save all the settings (mesh, material, global param etc). If you want to repeat the experiment with slight modification to the parameter, you could reload the save file, and straightaway click the ui-num button, which will open the global parameter editor while creating and setting your structure.
Message by Gethyn Lewis:
Excellent.That’s solved the problem and I get much nicer results too.Thank you very much.