3.5.1. Variables Tree View

The Variables tree view displays all variables corresponding to a particular case or pair of cases. Variables are categorized under the following folders:

  • The Derived folder contains variables that are automatically generated by CFD-Post. The Vortex Core subfolder contains any variables related to vortex cores. For details on vortex cores, see Vortex Core Region in the CFD-Post User's Guide.

  • The Difference folder contains differences in variables between two cases. The Difference folder becomes available only after Case Comparison has been enabled through the Outline workspace. For details on Case Comparison, see Case Comparison in the CFD-Post User's Guide.

  • The Geometric folder contains mesh statistics such as element volume, edge length ratio and minimum face angle.

  • The Solution folder contains variables generated by solver applications. The subfolders Residuals and Corrections contain variables related to solution quality. The subfolders Fourier Coefficients and Transient Statistics contain variables related to transient cases.

    Note:  When the results file from a transient blade row case is loaded, CFD-Post creates all the variables with available Fourier Coefficients. The timestep selector defaults to the last time step in the simulation. Fourier Coefficient vector variables are available only for the non-expanded domain and are not oriented correctly.

  • The Turbo folder contains variables related to turbomachinery, particularly those involving cylindrical coordinates. The variable list in the Turbo folder expands if you initialize turbo components through the Turbo workspace. For details on the Turbo workspace, see Turbo Workspace.

  • The User Defined folder contains any new variables created by the user. For details, see User Variables.

  • The User Locations and Plots folder contains variables related to streamlines, particle tracks and user locations from external files.

Variables prefixed by a particular material type are grouped in subfolders. If the variable belongs to another subfolder, such as Vortex Core or Fourier Coefficients, the material type takes priority. For example, gas.velocity.helicity appears under Derived > Gas > Vortex Core.

Variables Tree View Shortcuts

The following table shows commands that are specific to the Variables tree view. For a description of how to access these shortcuts, and a list of commands that appear in most tree views, see Common Tree View Shortcuts.

CommandDescription
All to ConservativeMakes all variables assume conservative values. For details, see Hybrid and Conservative Variable Values.
All to HybridMakes all variables assume hybrid values. For details, see Hybrid and Conservative Variable Values.
Calculate Velocity ComponentsCalculates velocity components using the global rotation axis. This can also be done in the Turbo workspace. For details, see Calculate Velocity Components.