Create the Output Requests

Create output requests to generate the fluid pressure, mass flow, and temperature results.

The app automatically creates a field output request when you create a simulation scenario. This field output request generates output from data that is spatially distributed over the entire model. You can modify the field output request to control how often the app generates the output, which reduces the computational demand on your computer. Most importantly, you can use the output data to create contour and symbol plots of the model. History output requests, by contrast, generate output from data at specific points in the model at a specified rate. You can request output for only parameters that you find relevant, and you can control how often the app generates output for those parameters. You can display the history output using X-Y plots, which allows you to see the change in a parameter's quantity at the rate you previously specified.

In this example, you create one history output request for each nozzle's opening. The output request for the outlet nozzle collects pressure, mass flow, and temperature results, while the output request for the inlet nozzle collects only pressure and mass flow results. You do not require the temperature at the inlet nozzle opening, because you specified its temperature when you previously created the mass flow boundary condition.

  1. Create an output request for the outlet nozzle's opening.
    1. From the Output Requests section of the Assistant, click Output .
    2. Name the output request Outlet Nozzle Opening.
    3. Select the blue circular glyph at the inlet nozzle as the support.
    4. From the Output group options, select History.

      The app generates the numerical solution at each iteration of the simulation to create X-Y plots. You can view these plots after you run the simulation.

    5. Expand Energy, and select AVGTEMP.
    6. Expand Flow, and select AVGPRESSABS and MASSFLOW.
    7. Click OK.
      The app generates the area-averaged surface temperature, area-averaged absolute pressure, and integrated mass flow rate at the outlet nozzle's opening at each increment.
  2. Similarly, create an output request for the inlet nozzle's opening, but request only the absolute pressure and mass flow results.