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Shedding Under Influence of Airflow

Shedding of impinging liquid droplets has various practical applications from ice accretion on wind turbine blades and airfoils to enhanced oil recovery, and water management in fuel cells etc. When a liquid droplet is exposed to shear flow, it starts to shed off from the substrate when shear drag force overcomes the adhesion force which takes place between sessile liquid droplet and substrate. In our experiments a wind tunnel was incorporated to provide controlled shear flow which induces drag on droplet to find out how the droplet behaves on various substrate with various wettability profiles.

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