Fig. 1: Illustration of the 3D-SC propeller design process. | Nature Communications

Fig. 1: Illustration of the 3D-SC propeller design process.

From: Towards silent and efficient flight by combining bioinspired owl feather serrations with cicada wing geometry

Fig. 1

a This panel depicts the sequential development of the 3D-SC propeller topology, based on the morphological characteristics of owl feathers and the shape of cicada forewings, ending with the CAD representation on the right. The inset highlights the definitions of wavelength and amplitude of the sinusoidal serration waveform, alongside the 2D airfoil profile in the side view. Image of cicada and owl courtesy of Eric Isselee/Shutterstock.com. b This panel displays the fabricated 6-inch diameter 3D-SC propeller along with the B1, B2, B3, and B4 benchmarks, produced using Polyjet additive manufacturing, illustrating the process from the design concept to the physical prototype.

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