Results - Results While looking at the flow visualizations...

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Results While looking at the flow visualizations using the smoke wire at approximately 3.048m/s it was observed that at 0 degrees that the flow about the airfoil was symmetric and that the point of stagnation was at the leading edge of the airfoil. There was also no separation about the airfoil at this angle (Fig.4) and the flow was laminar 1 . As we increased the angle of attack to 10 degrees the point of stagnation moved further down the bottom of the airfoil, and the flow started to separate from the body of the airfoil and it started to stall. At 15 degrees the point of stagnation moved even further away from the leading edge along the bottom side of the airfoil, and the flow separated at the top of the airfoil (Fig.5), which means the airfoil was fully stalled 4 . The smoke visualizations were taken at Re ≈ 1.27e5 and Re ≈ 3.19e5 with the smoke wand. The flow was more condensed then the flow at the slower speed. It also took a high angle of attack for the flow to separate. The reason why the flow did not
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This note was uploaded on 09/23/2011 for the course ASE 120K taught by Professor Staff during the Spring '10 term at University of Texas at Austin.

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Results - Results While looking at the flow visualizations...

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