4 papers
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…
Non-monotonic surface tension leads to spontaneous symmetry breaking in a binary evaporating drop
Christian Diddens, Pim J. Dekker, Detlef Lohse
The evaporation of water/1,2-hexanediol binary drops shows remarkable segregation dynamics, with hexanediol-rich spots forming at the rim, thus breaking axisymmetry. While the segr…
Pinning induced motion and internal flow in neighbouring evaporating multi-component drops
Pim J. Dekker, Marjolein N. van der Linden, Detlef Lohse
The evaporation of multi-component sessile droplets is key in many physicochemical applications such as inkjet printing, spray cooling, and micro-fabrication. Past fundamental rese…
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…