Butterflies fly using efficient propulsive clap mechanism owing to flexible wings
Data files
Dec 19, 2020 version files 4.95 GB
-
Butterfly_data_log.csv
-
Butterfly_data.zip
-
Clapper_data_log.csv
-
ClapperDAT.zip
Abstract
Methods
The data was gathered using a tomoPIV setup, capturing a thin volume oriented perpendicular to the free-stream flow in a windtunnel. The images of the particles were analyzed using Davis 8.3.1, generating 3D vector fields of which the data uploaded here represents the middle slice of the volume. Images were captured at 640 Hz.
Usage notes
The butterfly data represents a volume with the first three columns being the coordinates of the volume (x, y, z), where the z-coordinate has been calculated from the frame rate of the cameras and the free stream velocity of the wind tunnel. The remaining three columns of date are the velocity components (u, v, w).
The clapper data represents a single plane with the first three columns being the coordinates of the plane (x, y, z). The remaining three columns of date are the velocity components (u, v, w). The frame rate of the cameras are 640 Hz.