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Quality 2D Airfoil Simulation Tutorials

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Old   July 28, 2018, 23:28
Default Quality 2D Airfoil Simulation Tutorials
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I have a basic question. I am reverse engineering a propeller blade using 3D scanning technology and Autodesk Fusion 360. Due to the size and surface texture of the blade the mesh generated from the 3D scans is very poor quality.

To address this problem, I attempted to reconstruct the blade geometry by creating 2D cross sections of the mesh. Using these cross sections I created closed analytical splines at intervals along the span based on the blade curvature. From here, I lofted the cross sections into a solid body using 3D splines as guides for the leading and trailing edge of the blade. This method worked remarkably well except at the wing tip where the scan and cross section quality was poorest.

I want to first do 2D simulations of the blade sections then use blade element momentum theory to get approximate performance metrics. From here, I want to do a full blade simulation but do not have the resources to do that at this time.

My original strategy utilized XFLR5 or JavaFoil to compute the airfoil characteristics. However, the nature of the geometry makes the results of these simulations questionable at best. Specifically, the splines I created do not have a sharp trailing edge - this is necessary to create a smooth loft. Consequentially, I do not believe the Kutta condition can be satisfied accurately using these codes.

I want to instead look at conducting simple 2D simulations of airfoils with ANSYS. I have 3D model with 2D cross sections that I can easily export to a .iges file. However, Ive found surprisingly little information online regarding how to import a CAD file, create a suitable mesh, then run a simulation. Many of the tutorials require using the CAD software embedded in ANSYS or use overly simplified geometries. I am seeking a quality tutorial to carry out the aforementioned tasks
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