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32.9.11 Report/Reference Values...

The Report/Reference Values... menu item opens the Reference Values panel.



Reference Values Panel


The Reference Values panel allows you to set the reference quantities used for computing normalized flow field variables. It also allows you to specify the reference zone for postprocessing relative velocities in moving-zone problems. See Section  29.10 for details about the items below.

figure

Controls

Compute From   contains a drop-down list of the boundary zones. You may select a zone to be used for automatically defining the reference values, but depending on the boundary condition used, all of the reference values may not be set. For example, the reference length and area will not be set by computing the reference values from a boundary condition; you will need to set these manually.

Reference Values   contains inputs for the reference values.
Area   sets the reference area, which is used to compute the force and moment coefficients.

Depth   sets the reference depth used for computing cell volumes in 2D.

Density   sets the reference density, which is used to compute the reference dynamic pressure.

Enthalpy   sets the reference enthalpy, which is used to determine the total enthalpy change.

Length   sets the reference length, which is used in the computation of the moment coefficient.

Pressure   sets the reference pressure, which is used to compute the pressure-related forces and moments and the pressure coefficient.

Temperature   sets the reference temperature, which is used to compute entropy for incompressible flows.

Velocity   sets the reference velocity magnitude, which is used to compute the reference dynamic pressure.

Viscosity   sets the reference kinematic viscosity, which is used in the computation of the boundary Reynolds number.

Ratio Of Specific Heats   sets the value of the specific heat ratio, which is used in turbomachinery efficiency calculations.

Reference Zone   contains a drop-down list of all cell zones in the domain. For flows involving multiple moving zones, you will need to select the reference zone for postprocessing relative velocities and related quantities. See Section  29.10.2 for details.


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