Foundations of the General Heat Transfer Equation
This section presents basic results leading to the heat transfer equations solved in COMSOL Multiphysics. Starting by a presentation of heat as another mode of energy transfer different from work, the energy conservation laws that apply lead to the establishment of
The Heat Balance Equation
. The latter is further derived to give the different versions of the heat transfer equations in various media.
In this section:
•
Thermodynamic Description of Heat Transfer
•
The Physical Mechanisms Underlying Heat Transfer
•
The Heat Balance Equation
•
Consistency with Mass and Momentum Conservation Laws