Reporting and Monitoring with Plots

In this tutorial, the CPU time that is needed to perform complex chemistry calculations is compared with the CPU time for the entire solver calculations.

Simcenter STAR-CCM+ can dynamically monitor virtually any quantity while the solution develops. This requires setting up a report defining the quantity of interest and the parts of the region to be monitored. A monitor is then defined based on that report. The former also helps to create an appropriate XY graph plot. From the plots, it can be observed that complex chemistry calculations are time-consuming and that they take a large portion of the total solver CPU time. However, complex chemistry calculations also offer the most detailed description of the underlying fluid chemistry, and for some problems these calculations are required to predict physical values of interest accurately.

  1. Create two reports, one System > Total Solver CPU Time and one Combustion > Complex Chemistry Parallel Maximum.
  2. Select the Complex Chemistry Parallel Maximum node and set Complex Chemistry Variable to CPU Time.
  3. Multi-select both reports then right-click one of the reports and select Create Monitor and Plot from Report.
  4. In the dialog that appears, click Single Plot.
  5. Rename the Plots > Reports Plot node to CPU Plot.
  6. Save the simulation.