Energy Balance
 

Hi I am doing combustion simulation. At the end of the run I see energy balance calculated something like this

Inlet W Outlet X Heat Sink Y Domain Z

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Sum This sum should be close to zero in order to have low energy imbalace.

Can anyone tell me how CFX calculates the Z (Domain energy)? What is the physical interpretation of it?

It is not what I thought earlier that it corresponds to heat of reactions occuring in the domain.

This is accomodated in W.

Thanks in advance.