화학공학소재연구정보센터
Journal of Colloid and Interface Science, Vol.279, No.1, 192-197, 2004
Capturing drops with a thin fiber
We study experimentally the dynamics of drops impacting horizontal fibers and characterize the ability of these objects to capture the drops. We first show that a drop larger than a critical radius cannot be trapped by a fiber whatever its velocity. We determine this critical size as a function of the fiber radius. Then we show that for smaller drops, different situations can occur: at a low impact velocity, the drop is entirely captured by the fiber, whereas some liquid is ejected when arriving faster. We quantify the threshold velocity of capture. (C) 2004 Elsevier Inc. All rights reserved.