Detachment of droplets from cylinders in flow using an experimental analogue
MetadataShow full item record
This work experimentally examines the detachment of liquid droplets from both oleophilic and oleophobic fibres, using an atomic force microscope. The droplet detachment force was found to increase with increasing fibre diameter and forces were higher for philic fibres than phobic fibres. We also considered the detachment of droplets situated on the intersection of two fibres and arrays of fibres (such as found in fibrous mats or filters) and found that the required detachment forces were higher than for similarly sized droplets on a single fibre, though not as high as expected based on theory. A model was developed to predict the detachment force, from single fibres, which agreed well with experimental results. It was found that the entire dataset (single and multiple fibres) could be best described by power law relationships.
Showing items related by title, author, creator and subject.
Measurement and Modelling of The Force Required to Move Coalesced Oil Droplets along Oleophillic and Oleophobic Fibres.Mullins, Benjamin; Mead-Hunter, Ryan; Kasper, G.; King, Andrew (2011)This paper presents the results of an extensive series of measurements of droplet-fibre forces in mist (coalescing) filters. A method was developed which allowed droplet-fibre forces to be measured using an Atomic Force ...
Mead-Hunter, Ryan; Mullins, Benjamin; King, Andrew (2011)Droplet-fibre interactions are found in many natural and anthropogenic systems. A common industrial example is fibrous filtration - used to capture liquid (e.g. oil) mists. The filters used consist mostly of highly porous ...
Gumulya, Monica; Utikar, Ranjeet; Pareek, Vishnu; Mead-Hunter, Ryan; Mitra, S.; Evans, G. (2015)© 2014 Elsevier B.V. A three-dimensional, CLSVOF-based numerical model was developed to study the hydrodynamics of water droplets of various diameters impacting a heated solid particle. The temperature of the particle was ...