Below I show the solution for a 1D problem. I have solved the problem on a uniform 48 cell grid. I then resampled the solution onto a uniform 12 cell grid using:
mapFields /home/48cell/ -sourceTime 100 -case /home/resampled_12cell/ -consistent
I am surprised that the resampled points do not lie on top of the 48 cell solution!
Does anyone know why mapFields does this?
How can I achieve better interpolation?
What are you trying to plot?
It is basically a plot of the 1D unsteady diffusion equation with a source term included. I am trying to perform a grid sensitivity analysis where a resample all my grid solutions to one common grid.
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