e-journal
Equilibrium of drops on inclined fibers
Abstract.
Why is it that drops do not slip down inclined thin fibers or spider silks? The possible explanation is
based on the existence of fiber size, which causes a sustaining force that pins these drops. Following this
explanation, the drop remains in equilibrium until a critical value of the sustaining force is reached. We
suggest an alternative analyses, from the point of view of the inclined fiber at which the drop slips down
is predicted. This result does not depend explicitly on silk surface roughness, but only on the drop size
and surface tensions.
Keywords:
Thin fibers
Spider silks
Drop
Surface tensions
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