Re: Spatially varying 2D source in fipy 3

[Adam Stone]

Thanks for the suggestion, Daniel. I think I see what you mean... Basically, the large grid (necessary to reduce boundary artifacts and approximate semi-infinite solid) gives a very low resolution for the small part of that grid where the source is located. So more error is introduced compared to a smaller grid spacing in the region of the source. Benny's approach was to refine the grid, but integrating the source analytically should address the same issue. Is this correct? Adam On 12/07/2012 11:12 AM, Daniel Wheeler wrote: On Thu, Dec 6, 2012 at 5:21 PM, Adam Stone <arstone...@gmail.com> wrote: and the intensity profile is a Gaussian beam: Adam, I assume this source is highly concentrated at the centre of your domain. One thing you could try is integrating I explicitly and then taking the cell volume average and using that as the source. This may  give a much better result on a coarse grid. Use    \frac{\int I dV}{\int dV}   as the source rather than simply I. Just a suggestion, not entirely sure that this is the issue. -- Daniel Wheeler _______________________________________________ fipy mailing list fipy@nist.gov http://www.ctcms.nist.gov/fipy [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]

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