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Taking medium as benchmark, we compare coarse and fine mesh. Note that the difference in drag coefficient between three meshes is negligibly small. For analysis of drag coefficient, it seems that coarse mesh provides enough resolution.

Pressure Coefficient Comparison

Let's analyze pressure coefficient plot around cylinder for three different mesh before we conclude which mesh to use. Let's start with a coarse mesh.

Plot > XY Plot...

Change the Y Axis Function to Pressure..., followed by Pressure Coefficient. Then, select cylinder under Surfaces. Check the option Write to File. Image Added
Click Write...
 
Enter the file name and directory to save.
 
Do the same for medium and fine meshes by opening different case and data files.
 
After that, open the files that you have written with excel spreadsheet. Compile and plot the data accordingly.
 
Image Added
 
 
 

Go to Problem 1

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