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Why ReactingFoam gives different results with different number of processors?

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Old   May 18, 2015, 01:59
Default Why ReactingFoam gives different results with different number of processors?
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James Behzadi
Join Date: Oct 2011
Location: Sydney, Australia
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Dear Foamers,

I have run into a peculiar case and appreciate any help.

case setup: To expose the problem better, I have setup a simple 1D hydrogen case for use with reactingFoam (attached). The resolution is 4 microns with domain length being 1mm with periodic BC. Initially all variables are uniform and only we have a harmonic temperature distribution. To ensure this is not related to chemistry, I have turned the reaction "off".

What is wrong: After only "one" time step the results for "U" field is different if you run the case with 1 or 5 cores (figure attached). Is this expected or I am missing something here?!

Thanks in anticipation,
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