202 citations · 783 across the 20 of their papers we have counts for
30 papers · 1 filter
Leidenfrost droplets: The roles of ambient humidity and internal droplet circulation
Maxim de Wildt, Andrea Prosperetti, Christian Diddens +1
A volatile droplet gently deposited on a superheated substrate can sit on a thin film of its own vapour, which prevents contact between the drop and surface. This phenomenon is cal…
Upstream motion of oil droplets in co-axial Ouzo flow due to Marangoni forces
Steffen Bisswanger, Duarte Rocha, Sebastian Dehe +4
To explore the physicochemical hydrodynamics of phase-separating ternary liquids (Ouzo-type), a binary oil-ethanol mixture is introduced into a co-flowing stream of water. Oil drop…
Internal flow and concentration in neighbouring evaporating binary droplets and rivulets
Pim J. Dekker, Duarte Rocha, Christian Diddens +1
In this paper, the evaporation of neighbouring multi-component droplets or rivulets - often found in applications such as inkjet printing, spray cooling, and pesticide delivery - i…
Marangoni flow driven hysteresis and azimuthal symmetry breaking in evaporating binary droplets
Duarte Rocha, Detlef Lohse, Christian Diddens
The non-uniform evaporation rate at the liquid-gas interface of binary droplets induces solutal Marangoni flows. In glycerol-water mixtures (positive Marangoni number, where the mo…
Evaporating sessile droplets: solutal Marangoni effects overwhelm thermal Marangoni flow
Duarte Rocha, Philip L. Lederer, Pim J. Dekker +3
When an evaporating water droplet is deposited on a thermally conductive substrate, the minimum temperature will be at the apex due to evaporative cooling. Consequently, density an…
Symmetry Breaking in Chemical Systems: Engineering Complexity through Self-Organization and Marangoni Flows
Sangram Gore, Binaya Paudyal, Duarte Rocha +7
Far from equilibrium, chemical and biological systems can form complex patterns and waves through reaction-diffusion coupling. Fluid motion often interferes with these self-organiz…