Swift feathers improve airflow
Visiting student Evelien van Bokhorst published her second
paper with the
lab, now as first author on the cover of the Journal of Experimental Biology.
Using high-resolution flow measurements she shows how feather roughness much
improves the airflow over the wings of swifts during gliding flight. The finding
shows that drones of similar size would fly better with similarly rough wings.
The roughness can be remarkably high, which simplifies the manufacturing of high-performance
wings.
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