CFD Online Discussion Forums - Internal Energy in Fluent

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ymoucha

February 10, 2014 10:17

Internal Energy in Fluent

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!! :confused:

Could any one help please??

cfdivan

February 11, 2014 04:07

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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