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Verification

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& Validation

Verification

One of the ways we can verify our data is by refining the mesh. Open up the mesh, and increase the Number of Divisions for Edge Sizing and Edge Sizing 2 to 100. Click Mesh in the Outline window, and in the Details window, expand statistics. The number of elements should now be 40000.

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Exit out of the mesher. First, right click Setup and select Reset. Then click in the project schematic. Open up the solver, and solve the simulation using the same solver and boundary conditions (you'll have to input them again), but this time change the number of iterations to 5000. Again, calculate the force coefficients and graph the pressure coefficient.

Validation

To validate our data, we will take a compare the data from actual experiment.

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As we can see from the table and the graph, the CFD matches the data fairly well. There are inaccuracies from factors like our assumption that the flow was inviscid, but we still managed to extract some meaningful information from the simulation.

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