Pressure Work
This subnode adds the following contribution to the right-hand side of the Heat Transfer in Fluids equation to model the result of heating under adiabatic compression as well as some thermoacoustic effects:
(6-15)
where αp is the coefficient of thermal expansion defined as:
The pressure work is calculated using the relative pressure, and is generally small for low Mach number flows.
No settings are required.
When the Nonisothermal Flow multiphysics coupling node is added, the effect of pressure work is automatically taken into account. In this case, the Pressure Work feature is overridden by the multiphysics coupling node’s contribution.
Location in User Interface
Context Menus
More locations are available. For example:
Ribbon
Physics Tab with Fluid selected in the model tree: