In this air distribution manifold, air enters through a single port and is distributed across three outlet ports.
This tutorial is divided into two sections. In this first section, we will launch from CAD, set up the simulation model, and run it in Autodesk Simulation CFD. In the Manifold Results Tutorial, we continue the process to visualize and compare results from multiple design iterations.
This tutorial discusses the following key topics:
Autodesk Simulation CFD must be installed and licensed on your computer.
The geometry consists of an inlet tube, three outlet tubes, and a distribution chamber:
The flow is distributed across the three outlet tubes. In the second design of this study, we are going to remove the middle outlet tube, and compare the resultant flow distribution with the original design.
Open the manifold assembly in your CAD system from the appropriate folder.
The geometry files are located in Program Data\Autodesk\Simulation CFD 2013\Examples\CAD\manifold.
CAD is one of the following CAD systems:
UGNX (part in UGNX)
ProEngineer (use Granite Launch Configuration)
If launching from Autodesk® Inventor, Pro/Engineer, or SolidWorks, select the option to launch the Active model. To create a new design study in the Design Study Manager:
Autodesk® Simulation CFD starts, and the Design Study is created.
If launching from Autodesk® Inventor, Pro/Engineer, SolidWorks, or SpaceClaim, the model units for this example are set automatically to mm. No further steps are necessary for length unit assignment.
If launching from the other CAD tools or from the Desktop, change the length units to mm by right clicking on the Geometry branch of the Design Study Bar. On the Change Units dialog, leave Change Units checked, and click OK.
We begin by assigning a material to all parts in the model. In the next several steps, we may change some of the material assignments. This step is a convenient way to ensure that all parts are assigned a material before starting the analysis.
Click Solve from the Setup tab.
Make the following settings on the Solve dialog:
Click the Physics tab.
Flow = On
Click the Control tab.
Iterations to run = 100
Click Solve to start the analysis.
Now that you have set up and run the first design iteration, please proceed to the next Manifold tutorial to create a second design iteration, review your results, and compare the effect of the design change on the performance of the manifold.