The below video and image were used in the paper “High aerodynamic lift from the tail reduces drag in gliding raptors,” which was published in the Journal of Experimental Biology in February of 2020. These visualizations were created by James R. Usherwood, Jorn A. Cheney, and Jialei Song. Other contributors to the paper were Shane P. Windsor, Jonathan P. J. Stevenson, Uwe Dierksheide, Alex Nila, and Richard J. Bomphrey.
Note: The captions seen here are identical to those in the aforementioned paper, I did not write them.
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First Place – Visualizing wing vortices off of an owl is awesome.
First Place – This video is extremely cool and perfectly demonstrates the fluid flow under the wing of an owl.
Third Place – This video shows a great set up for capturing fluid dynamics and highlights the vortices that result from wing tips. The soap bubbles do a great job of highlighting this, and the lighting for the set up also aids in capturing the image clearly.
Third Place – this video is slightly scary but insanely cool. The way they were able to visualize the bubbles and air flow from the wings is really impressive especially with the owl flying right at the camera.