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Internal Energy in Fluent

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Old   February 10, 2014, 11:17
Default Internal Energy in Fluent
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Hi everybody,

Can any one help with the internal energy? how does Fluent calculate it? i am filling a 100L PCM tank with cold water through heat exchangers, the issue is that the calculated gained energy: \int(mCp delta T) dt dosen't match with the internal energy of the tank calculated by Fluent!!

Could any one help please??
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Old   February 11, 2014, 05:07
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Hi Yo,

Are you sure that the internal energy in Fluent means exactly the same that you are looking for? Find out on user guide the definition equation for internal energy.

Regards,
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