Converts APC propeller's PE0 files into BEM files

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Haoliang Yu

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Jan 18, 2024, 9:50:02 PM1/18/24
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Hello!
I discovered this program on GitHub, based on the Julia programming language, which converts APC propeller's PE0 files into BEM files. This allows importing them into OpenVSP for aerodynamic analysis. I want to use this method to calculate the performance of APC electric propellers and compare them with UIUC wind tunnel experimental data to validate the accuracy of VSPAERO in propeller calculations.
Link: https://github.com/jamesjhu/APC2BEM
I have started using it, and I find this tool to be quite effective. However, I feel that the generated shape looks a bit strange when compared to the actual images of the propeller. So, I'm sharing it with the group, hoping that everyone can give it a try in their spare time and see if it is indeed useful.
Additionally, I plan to further analyze the generated propellers using VSPAERO and compare the results with UIUC wind tunnel experimental data.

Many thanks
Knight
7RA03MIAREEC84UQ4VRBVD.png

Rob McDonald

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Jan 19, 2024, 1:28:12 AM1/19/24
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The instructions on the GitHub page say:

After importing the BEM file into OpenVSP, set the following Propeller ⎡Design⎤ properties:

  • Construction X/C 0.000
  • Feather Axis 0.125

Did you try that?

Rob

Haoliang Yu

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Jan 19, 2024, 1:49:18 AM1/19/24
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Hello, Rob!
It's evident that you're right! I was too focused on modifying the airfoil later on and completely forgot about setting these two important parameters. You've given me a great reminder!
After setting them, the shape aligns properly, and I'm very grateful for your guidance. I will continue with the validation analysis.

Knight
ebf9c6a36741d4e1081f0857c9441ad.png

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