Time dependent problem

Question

Hello. I want to solve a time dependent problem and plot its solution in time and space. I've done the first, but not the last. How is it possible to do the last???

praveen · Answer 1 · May 23, 2014

You can save the solutions to a file

f = File("solution.pvd")
t = 0
while t < tfinal:
       ... solve for u
       f << u
       t += dt

Then you can open solution.pvd in paraview and animate it and do other things.

answered May 23, 2014 by praveen FEniCS User (2,760 points)

OK. But how is it possible to open the file and plot with respecto to space and time?

commented May 23, 2014 by kspanakis FEniCS Novice (160 points)

You must learn to use paraview. You can also plot within fenics using "plot".

commented May 23, 2014 by praveen FEniCS User (2,760 points)

I know "plot". But what i want is to take the solutions that are calculated every time t and gather them into a single plot.

commented May 23, 2014 by kspanakis FEniCS Novice (160 points)

@ kspanakis

Please post the solution or your findings If you were able to solve your problem of plotting solutions for time dependent problems.

commented Oct 2, 2014 by Orange FEniCS Novice (470 points)

Please post the solution or your findings If you were able to solve your problem of plotting solutions for time dependent problems.

commented Sep 18, 2015 by Chaitanya_Raj_Goyal FEniCS User (4,150 points)

Time dependent problem

1 Answer