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The simulation that will be used as validation indicates that the angle of attack is 1.25 degrees. Press the Move tool and then, using the the Select Component Select tool, choose the airfoil. Press the blue, curved arc and rotate the airfoil so that the input box appears, then input -1.25deg to rotate it precisely.

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In order to create an area around the airfoil where air will move, an enclosure must be made around it. The Enclosure tool can be found in the Analysis section of the toolbar under the Prepare tab.  Activate the Enclosure tool, then select the airfoil body. A box will appear around the airfoil. Enter 500% into the Default cushion box at left. Select the distance from one the airfoil end to the enclosure and set it to 0m. Use the picture below for guidance. Press the green checkmark and the enclosure will be generated.

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