Solutal Marangoni convection in a Hele–Shaw geometry: Impact of orientation and gap width

Marangoni instability triggered by selective evaporation of a binary liquid inside a Hele-Shaw cell

“…In § 3, this system is modelled and numerical simulations of the model equations are performed. This model is quasi-2-D and takes into account the drag caused by the walls of the cell (Bizon et al 1997;Bratsun & De Wit 2004;Köllner et al 2015). The simulation results are able to reproduce our experimental observations quite well, even though we do not consider the effects of evaporative cooling.…”

“…Many of the papers that make use of a Hele-Shaw cell have focused on liquid-liquid interfaces where chemical reactions take place, including experimental (Eckert, Acker & Shi 2004;Shi & Eckert 2006, 2007Eckert et al 2012;Schwarzenberger, Eckert & Odenbach 2012), numerical (Grahn 2006;Mokbel et al 2017) and theoretical (Bratsun & De Wit 2004) approaches. In particular, Köllner et al (2015) performed both experiments and numerical simulations, showing good qualitative agreement between them, though the Marangoni rolls in experiments grew faster than in simulations.…”

Relaxation oscillations of solutal Marangoni convection at curved interfaces

“…In [17,48] the influence of small deformations of an ideally planar interface was already briefly discussed. However this effect becomes particularly clear in Fig.…”

“…Assuming a parabolic velocity profile between A c c e p t e d M a n u s c r i p t the plates of the Hele-Shaw cell allows us to consider the flow equations in 2D by introducing an additional friction term depending on the Hele-Shaw gap width d [48][49][50][51][52]. As shown in Fig.…”

Sandwiched droplet actuated by Marangoni force in a Hele-Shaw cell

“…Experimental works pertaining to solutal Marangoni in a Hele-Shaw cell have been reported, such as the mass transfer of liquid [14] and the coalescence of drops [15]. Thermocapillary-driven Marangoni flow of droplets and air bubbles [16,17] has also been investigated using the Hele-Shaw cell [18,19].…”