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titlePost Processing

We will use CFD-Post as the primary post processing GUI. Steps for post processing in FLUENT can be found here.

Step 6

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Velocity Vectors

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https://confluence.cornell.edu/download/attachments/118771111/VectPlot_Full.png

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. Results

Double click on Results from the Workbench Window to launch CFD-Post.

Velocity Vectors

Click on the z-axis, Image Added to view the XY plane. Click on the vector icon to insert a vector plot. Name it Velocity Vector.

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A panel named "Details of Velocity Vector" will appear right below the outline window. Set the Locations to symmetry 1. Click on Apply to display the velocity vectors.

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The velocity vectors will be displayed in the view window.

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You can use the wheel button of the mouse to zoom into the region that closely surrounds the plate, to get a better view of the boundary layer velocities:

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https://confluence.cornell.edu/download/attachments/118771111/VectPlot2_Full.png

Outlet Velocity Profile

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https://confluence.cornell.edu/download/attachments/118771111/xyplotsetup_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/SolXY1_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/XVelPlot1_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/Curv2_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/AxesMen1_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/Axes2_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/Plot5_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/Plot6_Full.png

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Mid-Section Velocity Profile

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https://confluence.cornell.edu/download/attachments/118771111/SurfLinRake_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/Plot1M_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/Plot2M_Full.png

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Pressure Coefficients

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https://confluence.cornell.edu/download/attachments/118771111/CompInlet_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/ContPlot_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/Contou_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/ContP1_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/ContZoom_Full.png

Skin Friction Coefficient

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https://confluence.cornell.edu/download/attachments/118771111/SolXY3_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/SkinFric1_Full.png

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https://confluence.cornell.edu/download/attachments/118771111/SkinFric2_Full.png

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Drag

Now, we will obtain the drag on the plate. First, click on Report then click on Result Reports..., as shown in the following image.
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https://confluence.cornell.edu/download/attachments/118771111/Report_RR_Full.png
Next, double click on Forces and click Print in the Force Reports menu. You should then obtain the following output in the command pane.
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https://confluence.cornell.edu/download/attachments/118771111/ForceRep_Full.png
As one can see from the data above, the plate experiences a drag of approximately 0.008377 Newtons. Furthermore, the data states that the drag coefficient is approximately 0.01675. The drag coefficient is defined by the following equation.
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In the case here, the density, viscosity and area all have values of 1. Thus, the equation above reduces to the following equation.
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The results from ANSYS FLUENT agree with the theory here since the drag coefficient is approximately twice the value of the drag.
Now, save your work in the FLUENT window, then close the FLUENT window.

Go to Step 7: Verification & Validation

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