Specifying When Data Collection Stops

You can set a time or iteration at which the monitor stops collecting data. This can let you get results for specific intervals within the simulation run.

For instance, if you are simulating an impeller and you want to obtain the mean pressures for seven revolutions lasting 0.08 seconds each, you would create seven field mean monitors. The monitors would have settings that increase by 0.08, for example:

• Field Mean 1 -- collection start = 0 and collection stop = 0.08
• Field Mean 2 -- collection start = 0.08 and collection stop = 0.16
• Field Mean 7 -- collection start = 0.48 and collection stop = 0.56

To apply this setting to a particular field function monitor, first you need to select the trigger type (time-step or iteration) in that monitor’s Trigger property.

Next, make an entry in the Collection Start property, and activate the Enable collection stop property.

This adds the Stop Specification node to the object tree under the parent field function monitor node. To specify when data collection stops, select this node and set the Collection stop property to the desired value in the properties window.

The values you enter in the Collection stop property and the parent node’s Collection Start property will be for a time-step or iteration, depending on what you selected in the parent node’s Trigger property.