Finding the Best Design

You start this tutorial by loading a Design Manager project file that includes a completed optimization study for the industrial exhaust. You then identify the best design coming from that study.

The goal for the optimization study was to find a design that minimized the pressure drop through the system while maintaining an outflow uniformity of at least 87%.

To load the initial optimization:
  1. Start up Simcenter STAR-CCM+ and select File > Load.
  2. In the Load a File dialog:
    1. Set Type to Design Manager Project.
    2. Click Browse.
    3. In the Open dialog, navigate to the designExploration folder of the downloaded tutorial files and select industrialExhaust_optimization.dmprj.
    4. Click Open, then OK.
    5. If required, download also the reference simulation industrialExhaust_referenceSimulation.sim.
  3. To find the best design resulting from the completed optimization study:
    1. Right-click the Design Studies > Design Study node and select Create Plot > History.
    2. In the History Plot Setup dialog, click OK.


      For each design, the history plot shows the pressure drop across the system. The best design according to this plot is the one that gives the lowest pressure drop.

    3. In the plot, hover the mouse pointer over the asterisk. The asterisk identifies the best design according to the objective.
      In the hover text, Design 66 is listed as the best design with a pressure drop of 116. 793 Pa.
    4. Right-click the Design Study > Design Sets > Feasible node and select Open Output Table.
      The Output Table - Feasible table lists all designs that meet the uniformity constraint with their corresponding input parameters and responses.
    5. In the header of the table, click Performance twice to sort the column from the highest value to the lowest.
      The highest performance value identifies the best design.
      For Design 66, the performance value is -0.812. Note the input parameters for this design.
      Input Parameter Value
      Bottom Angle Path 84.0 deg
      Deflector Angle 97.0 deg
      Deflector Horizontal Distance 0.1 m
      Deflector Radius 0.31 m
      Deflector Translation_X -0.1 m
      Deflector Translation_Y -0.1 m
      Deflector Vertical Distance 3.2 m
      Top Angle Path 77.0 deg

      You use the input parameter values later when you define the reliability study.