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To double the mesh density, the interval count is increased by factor of 1.5. The first length is decreased by a factor of about 1.5. To half the mesh density, the interval count is decreased by factor of 1.5. The first length is increased by a factor of about 1.5. Think about why it is so. 

After that, you should have three meshes with following mesh elements.


Coarse

Medium

Fine

Mesh Elements

6240

14040

31590



Pressure Coefficient Comparison

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