| (101) |
The energy equation written in integral form is:
|
| (101) |
where E is the total energy, H is the total enthalpy, 
is the heat flux vector, 
is the viscous stress tensor, 
is the body force vector representing the sum of all body forces in Eqn. 66 (Segregated) and Eqn. 38 (Coupled), and 
is the velocity vector. 
contributes additional energy source terms, such as those specified by the user.
Total energy is related to the total enthalpy H by:
| (102) |
where:
| (103) |
and 
.