arynh.github.io/032117.html at master · arynh/arynh.github.io · GitHub

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				<span>stumbling into aerodynamics</span>
				<br><br>
				<a href=index.html>Home<a/>
				<a href=posts.html>Posts<a/>
				<a href=about.html>About Me<a/>
				<br>
				<h2>Posts</h2>
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			<h2>3/21/17 - Airfoil Results and Full Model</h2>
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The print of the SD7037 airfoil (<iframe width="160" height="80" src="https://sketchfab.com/models/3d70ce12f69840db9ca8f17ba6c86ba1/embed?autospin=1&amp;autostart=1" frameborder="0"></iframe>) has finished. It printed more accurately than I was expecting. I oriented the shape vertically so any stripes from layers would run with the direction of airflow. This method of manufacturing airfoils is effective for prototyping, but I will try something else for the final test models.
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For the next model, I will try to use the laser cutter for greater precision and some flexibility in materials. I also have more experience with the laser cutter. A possible solution is to cut multiple profiles of the airfoil out of a sheet of chip board along with holes for alignment. A dowel through these holes will allow proper alignment, but this might not be necessary.
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<h3>Model</h3>
This model represents the final design for the wind tunnel including the adapter for the fan. The fan is 8" in diameter yet needs to attach to a 12" by 12" square cross section. The solution I have designed avoids creating too much turbulence or decreasing the volumetric flow rate too much.
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I will render better images once I have access to a computer capable of doing so.
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--Aryn Harmon