Calculating Derived Field Quantities Using Named Expressions

The Named Expressions panel displays expressions that can be included in register definitions by name. You can add additional expressions to the Named expression list by creating the expression in the register display area and then clicking the Add button. This lets you add to the Named expression library.

Click on a named expression to select it. When a named expression has been selected, the Copy to Stack button is activated. Click Copy to Stack to push the expression on the top of the stack.

When an Icepak design is open and a Solution Setup has been performed, the following predefined named expressions are available:

Pres	The relative static pressure of the fluid and is available when flow is computed.
Temp	Available when temperature is computed.
U	The x, y, or z component of the velocity vector and is available when flow is computed.
Heat_Flow_Rate	A derived scalar quantity computed from the temperature field. See Icepak Post Processing Quantities for more information.
Heat_Flux	A derived scalar quantity computed from the temperature field. See Icepak Post Processing Quantities for more information.
Mass_Flux	Is the mass flow rate per unit area and can only be computed on the surface of model objects.
Surf_Pressure	The relative static surface pressure of the fluid and is available when flow is computed.
Radiation_Flux	The radiation heat flow per unit area and can only be computed on surfaces of objects. It is available if you are solving your problem with radiation effects.
Surf_Temp	The surface temperature and is available when temperature is computed. See Icepak Post Processing Quantities for more information.
Turbulent_Viscosity_Ratio	The ratio of the turbulent viscosity to the laminar viscosity. It can be reported if any of the available turbulence models are used.
Turbulent_YPlus	is a nondimensional parameter. See Icepak Post Processing Quantities for more information.
Turbulent_Kinetic_Energy	The turbulent kinetic energy. See Icepak Post Processing Quantities for more information.
Turbulent_Epsilon	The turbulent dissipation rate. See Icepak Post Processing Quantities for more information.
Heat_Transfer_Coeff	A derived scalar quantity computed from the temperature field. See Icepak Post Processing Quantities for more information.
Thermal_Cond_X, Y, and Z	The x, y, or z component of the orthotropic thermal conductivity vector and is available when traces are imported.
Speed	The magnitude of the velocity vector and is available when flow is computed.
Heat_Radiative_Flow	A derived scalar quantity. It is available if you are solving your problem with radiation effects. It can be computed only on surfaces of objects.
Mass_Flow_Rate	A derived scalar quantity computed from the velocity field. See Icepak Post Processing Quantities for more information.

Related Topics:

Named Expression Library

Using the Fields Calculator