The influence of Marangoni convection on fluid dynamics of oscillating single rising droplets

Measurement and Correlation of the Mass Transfer Coefficient for a Liquid-Liquid System With High Density Difference

“…Moreover, the change of droplet trajectories from a vertical rise path to a zigzag trajectory can be obviously observed during the experiments. Deviations from a straight rise path are closely connected with an asymmetric deformation of the droplet, which has been confirmed by Engberg (2014) and Wegener (2007). Otherwise, the drag coefficient closely depends on the droplet shape, the bigger the drop diameter, the higher the drag coefficient.…”

Solution – gas and solution – crystal oscillatory phase transitions in the drops of aqueous solutions with one crystallizable component

“…Однако и конвективные потоки могут быть причиной осцилляций капель. Экспериментально осциллирующий рост и движение капель в системе жидкость -жидкость наблюдались в процессе экстракции ацетона из водной среды каплями толуола [18]. В этом случае возникновение осцилляций, по мнению авторов, связано с конвекцией Марангони.…”

Grid studies for the simulation of resolved structures in an Eulerian two-fluid framework

“…In Badreddine et al (2015) a grid study is performed for the rise of 1 mm and 2 mm air bubbles in stagnant water, showing that a number of at least 20 grid cells per bubble diameter is needed to obtain agreement with experimental data concerning bubble shape and terminal rise velocity. In Engberg et al (2014), a much higher number of 80 cells is mentioned to resolve a 3D toluene bubble with 5 mm diameter in a Level Set simulation, and even about 300 cells, if Marangoni convection is taken into account. Amaya-Bower and Lee (2010) show, that a bubble resolution with 40 grid cells per diameter gives reasonable accuracy in the 2D simulation of bubbles for with a Lattice Boltzmann Method based on the Cahn-Hilliard diffusive interface approach.…”