Sign-up for free online course on ANSYS simulations!| Include Page |
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Author: John Singleton and Rajesh Bhaskaran, Cornell University Problem Specification |
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We will use CFD-Post as the primary post processing GUI. Steps for post processing in FLUENT can be found here. |
Step 6: Results
Velocity Vectors
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https://confluence.cornell.edu/download/attachments/118771111/VectPlot_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/VectPlot2_Full.pngOutlet Velocity Profile
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https://confluence.cornell.edu/download/attachments/118771111/xyplotsetup_Full.png| Include Page | ||||
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Post Processing
Plot Velocity Vectors and Contours
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<iframe width="560" height="315" src="https://www.youtube.com/embed/DCbh6z1v1wY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> |
Note: In the below video (Plot Pressure Contours), please note that the cursor disappears accidentally at the 44 second mark and returns at the 3 minute mark. At 1 minute 17 seconds, "here" refers to the bottom-middle of the region near the plate. It is later drawn at the 1 minute 28 second mark. At 2 minute 40 seconds, "here" refers to the left most face, known as the inlet face, of the region.
Plot Pressure Contours
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<iframe width="560" height="315" src="https://www.youtube.com/embed/KRQ0rtKCJ3w" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> |
Plot Velocity Profiles
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<iframe width="560" height="315" src="https://www.youtube.com/embed/t3p52LPLw-A" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> |
Explanation for Velocity Profile Overshoot
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<iframe width="560" height="315" src="https://www.youtube.com/embed/LnIsw07iuew?rel=0" frameborder="0" allowfullscreen></iframe> |
Check Similarity Principle
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<iframe width="560" height="315" src="https://www.youtube.com/embed/Qde3pryaQ2A" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> |
Plot Velocity Derivatives
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<iframe width="560" height="315" src="https://www.youtube.com/embed/kn6zk0AWsps" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> |
Calculate Drag Coefficient
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<iframe width="560" height="315" src="https://www.youtube.com/embed/YrMyfB6n_W0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> |
Go to Step 7: Verification & Validation
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https://confluence.cornell.edu/download/attachments/118771111/SolXY1_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/XVelPlot1_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/Curv2_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/AxesMen1_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/Axes2_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/Plot5_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/Plot6_Full.png...
Mid-Section Velocity Profile
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https://confluence.cornell.edu/download/attachments/118771111/SurfLinRake_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/Plot1M_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/Plot2M_Full.png...
Pressure Coefficients
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https://confluence.cornell.edu/download/attachments/118771111/CompInlet_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/ContPlot_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/Contou_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/ContP1_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/ContZoom_Full.pngSkin Friction Coefficient
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https://confluence.cornell.edu/download/attachments/118771111/SolXY3_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/SkinFric1_Full.png...
https://confluence.cornell.edu/download/attachments/118771111/SkinFric2_Full.png...
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.
newwindow
https://confluence.cornell.edu/download/attachments/118771111/Report_RR_Full.png
https://confluence.cornell.edu/download/attachments/118771111/ForceRep_Full.png
In the case here, the density, viscosity and area all have values of 1. Thus, the equation above reduces to the following equation.
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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