Final_Thesis.pdf (47.71 MB)

Experimental study of impact and evaporation of a droplet on a solid surface: self-assembly of colloidal particles and bouncing droplets

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thesis
posted on 10.03.2020, 04:11 by LAXMAN KUMAR MALLA
The present thesis investigates two problems in the interfacial phenomena field that is the evaporation of a sessile droplet and the impact of a pure liquid droplet on a microtextured surface. First, the profile and morphology of the ring-like deposits obtained after evaporation of a sessile water droplet containing polystyrene colloidal particles on a hydrophilic glass substrate for non-heated and non-uniformly heated cases are investigated experimentally. In particular, the coupled effect of particle size, concentration and temperature gradient on the substrate are studied. Second, the impact dynamics of a microliter water droplet on a microgrooved surface is investigated. The effect of the pitch of the grooved surface and Weber number on the droplet dynamics and impact outcome are studied.

History

Principal supervisor

Adrian Neild

Year of Award

2020

Department, School or Centre

Mechanical and Aerospace Engineering

Course

Doctor of Philosophy (IITB-Monash)

Degree Type

DOCTORATE

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