Solution/Results

Press the Results button in the Workflow to extract information from the simulation. In order to find information that can be readily used, first press Evaluate Results. Once the evaluation is complete, select the Vector in the Results section under Objects. To show more vectors, change Symbol distribution to Based on mesh and input 2 for At every Nth item, then press Evaluate. To make the vectors easier to see, change the Symbol sizing in the Appearance section to 0.05 and the Symbol length to Constant. Press the Play button in the model window to see how these velocity vectors develop over time.

Streamlines are frequently used to display flow patterns.  Return to the Results panel and Add and Streamline object. Select the Inlet as the Seed location and press Evaluate.  Improve the display by changing Distribution to Based on mesh and set N to 2.  Press the Play button to animate the streamlines.  Experiment with the settings under Appearance to see how they affect the display.

To plot the pressure change, create a Contour on the walls of the flow volume. Select Contour in the Add drop down menu, select the Wall as the Location, and assign the Variable to be Pressure.

When velocity vectors are arranged in a 3D space, it often becomes difficult to see patterns without moving the object around. A simple way of seeing the patterns inside the flow is to create a plane which cuts across the volume showing the vectors in a 2D space. Select the Plane button in the upper right corner to create the construction geometry. Drag the arrows on the compass tool to orient the plane, dividing the aorta down the middle as shown below.

Return to the Results panel and select Vector from the Add dropdown menu. Select Plane 1 as the Location, choose Velocity as the Variable, and change the Approximate number of points to 400.  Under Appearance, change the Symbol sizing to 1 and the Symbol length to Constant.

Go to Step 6: Verification & Validation

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