Starting Design Manager and Setting the Inputs

Create a Pareto Optimization Study. Use design parameters from the reference simulation as inputs for the optimization study. To define objectives for the optimization and to compare the designs, use scenes, plots, and reports as outputs.

To launch Design Manager from the reference simulation:
  1. Right-click the root node of the simulation tree and select Create Design Manager Project.
    Simcenter STAR-CCM+ creates a new Design Manager project and imports the design parameters, reports, scenes, plots, and monitors from the reference simulation.
  2. Save the Design Manager project as airfoilOptimizationStudy.dmprj.
To create a Pareto optimization study:
  1. Right-click the Design Studies node and select New.
  2. Rename the Design Studies > Design Study node to Cl_vs_Cd.
  3. In the Properties window, set Study Type to Optimization.
  4. Define the optimization settings for the study:
    1. Select the Optimization Settings node and set Optimization Type to Multiple Objective Tradeoff (Pareto).
    2. Set Designs to Run to 120.
    3. Select the Optimization Settings > Archive Size node and make sure Number of Designs is set to 12.
      The archive size determines the number of non-dominated designs you want to find during the study to resolve the Pareto front. The recommended Designs to Run is 8 to 12 times the Archive Size.
      注When specifiying an archive size, make sure the value is evenly divisible by four and greater than or equal to 12. Additionally, the value should be greater than or equal to the number of input parameters in the study.
  5. Set the input parameters for the study to the design parameters that define the position of the flaps:
    1. Select the Design Studies > Cl_vs_Cd > Input Parameters node.
    2. In the Properties window, click (Custom Editor) for Parameters.
    3. In the Input Parameters dialog, select the following parameters:
      Node Parameter
      3D-CAD Model 1

      LeadingFlapRotateAngle

      TrailingFlapRotateAngle
      3D-CAD Model 1 > TranslateLeadingFlap

      TranslateLeadingFlap_X

      TranslateLeadingFlap_Y
      3D-CAD Model 1 > TranslateTrailingFlap

      TranslateTrailingFlap_X

      TranslateTrailingFlap_Y
      Simulation Parameters ConvergenceCriterion
      注To avoid each simulation running to the maximum number of steps, ConvergeneCriterion defines a stopping criterion based on the convergence of the lift and drag coefficients.
    4. Click OK.
  6. Define an appropriate value range for each input parameter:
    1. Right-click the Cl_vs_Cd > Input Parameters node and select Edit....
    2. Set the following parameter properties:
      Name Parameter Type Baseline Value Range Increment
      ConvergenceCriterion Constant 5.0E-4
      LeadingFlapRotateAngle Continuous 5.0 deg [1.0, 9.0] deg 0.1 deg
      TrailingFlapRotateAngle Continuous 40.0 deg [36.0, 44.0] deg 0.1 deg
      TranslateLeadingFlap_X Continuous -0.035 m [-0.04, -0.03] m 5.1E-4 m
      TranslateLeadingFlap_Y Continuous 0.0 m [-0.005, 0.005] m 5.0E-4 m
      TranslateTrailingFlap_X Continuous -0.02 m [-0.025, -0.015] m 5.1E-4 m
      TranslateTrailingFlap_Y Continuous 0.05 m [0.045, 0.055] m 5.1E-4 m
    3. Click Close.