To add basic monitors:

To add monitors for points and/or expressions:

To add monitors for aerodynamic damping (for transient blade row runs that involve boundaries that move periodically):

Click OK or Apply to set the definitions of all of the monitor objects. All monitor points will be displayed in the viewer.

For a transient run or run with a moving mesh, the monitor point location can either update with the mesh or it can remain based off of the initial mesh. For details, see [Monitor Name]: Monitor Location Control.

Information on the variables to be monitored is given near the start of the CFX-Solver Output file. In the following example, the variables Velocity and Pressure were requested for the Output Variables List in the .ccl file.

+-----------------------------------------------------------------------+
|                       User Defined Monitor Points                     |
+-----------------------------------------------------------------------+
Monitor Point: my monitor point
Domain: rotor
Monitor vertex location (x,y,z):     4.101E-01,  5.703E-02,  5.263E-02
User specified location (x,y,z):     4.100E-01,  5.618E-02,  4.951E-02
Distance to user specified location:                         3.231E-03
Valid variables from output variable list:
               Air Ideal Gas.Velocity u
               Air Ideal Gas.Velocity v
               Air Ideal Gas.Velocity w
               Pressure
+-----------------------------------------------------------------------+

The "Monitor vertex location" shows the actual location that is being monitored (the closest vertex to the "User specified location"). The "Distance to user specified location" shows the difference between the specified and actual monitoring location.

The "Output variable list" shows the full name of all variables that will be monitored.

When using the Expression option for a monitor, the results of the evaluated expression are output at each iteration. Enter an expression that evaluates to a single value at each timestep. The following are examples of expressions that could be monitored:

The variable names should be preceded with the fluid name when applicable. You can view a list of variable names in the Expression details view by right-clicking in the Definition window when editing an expression.

You can view a plot of monitor point values during a solver run. For details, see Monitors Tab in the CFX-Solver Manager User's Guide.

You can view monitor point values easily in the CFX-Solver Manager after a run. For details, see Exporting Plot Variables and Coordinates in the CFX-Solver Manager User's Guide.

You can also extract monitor point values from a .res file using the cfx5dfile command. The following syntax is used:

cfx5dfile <file> -read-monitor

where <file> is a CFX-Solver input or results file containing monitor point information. The output is sent to standard output (you may want to add a redirect to write the output to a text file, for example:

cfx5dfile <file> -read-monitor > out.txt

The output is produced as a list of variable names, followed by a comma-delimited list of values that correspond to the order of variable names. One line of these values is produced for every iteration that has been carried out.

You can enter:

cfx5dfile -help

to obtain more information.

Within CEL expressions, you can use the probe function to refer to monitors and monitor statistics. For example:

For details on setting up monitor statistics, see [Monitor Name]: Monitor Statistics.

For an example of using a monitor statistic as part of interrupt control, see Using Interrupt Control in Cases with Transient Convergence Behavior in the CFX-Solver Modeling Guide.