publication . Article . 2014

wettability and impact dynamics of water droplets on rice oryza sativa l leaves

Dae Hee Kwon; Hyung Kyu Huh; Sang Joon Lee;
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  • Published: 21 Feb 2014 Journal: Experiments in Fluids, volume 55 (issn: 0723-4864, eissn: 1432-1114, Copyright policy)
  • Publisher: Springer Science and Business Media LLC
Abstract
We investigated the wettability and impact dynamics of water droplets on rice leaves at various leaf inclination angles and orientations. Contact angle, contact angle hysteresis (CAH), and roll-off angle (α roll) of water droplets were measured quantitatively. Results showed that droplet motion exhibited less resistance along the longitudinal direction. Impact dynamic parameters, such as impact behaviors, maximum spreading factor, contact distance, and contact time were also investigated. Three different impact behaviors were categorized based on the normal component of Weber number irrespective of the inclination angle of the rice leaf. The asymmetric impact be...
Subjects
free text keywords: General Physics and Astronomy, Mechanics of Materials, Fluid Flow and Transfer Processes, Computational Mechanics, Optics, business.industry, business, Physics, Weber number, Hysteresis, Oryza sativa, Wetting, Transverse plane, Contact angle, Impact dynamics, Drop (liquid)
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