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Surface Integral - Mass Flow Rate

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Old   October 6, 2008, 11:36
Default Surface Integral - Mass Flow Rate
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Venkatesh V
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Hi All,

I am I have created a plane using Surface -> Plane. ( it create plane-19) But when I check the mass flow rate in using surface integral on that it gives some mass flow rate which is different from the mass entering the domain.

The results look resonable. Did any one has come across similar issue and any solution ?
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Old   October 10, 2008, 08:06
Default Re: Surface Integral - Mass Flow Rate
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Prasad
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This issue is not uncommon. Please specify how much is the difference between mass flow rates across the two surfaces.
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Old   October 10, 2008, 08:22
Default Re: Surface Integral - Mass Flow Rate
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Venkatesh V
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The differnce is close to 200% to 300%
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Old   October 10, 2008, 17:18
Default Re: Surface Integral - Mass Flow Rate
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Prasad
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This difference is definitely not within acceptable limits (a percent or two). Error lies either in surface creation (check coordinates) or in solution (converged?/correct models).
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