When the wind speed increased, the lift of three beetles wing in flapping motion first showed an increasing trend; but when the wind speed reached a certain value, the lift decreased.
← all excerpts
Micro-structures, nanomechanical properties and flight performance of three beetles with different folding ratios.
2
—
—
The sentences
With increasing wind speed, the lift-to-drag ratios of all three beetles show a decreasing trend ( Figure 5A ).