Deformation and breakup of single drop in laminar and transitional jet flows

Analysis of immiscible liquid-liquid mixing in stirred tanks by Electrical Resistance Tomography

“…Significant efforts on both the experimental and the computational sides have been devoted so far to the understanding of the fundaments of the fluid dynamics interaction between the two phases and to the development of predictive methods for improving the equipment performances and the quality of the products. Breakup and coalescence phenomena, mean and minimum drop size have been studied from an equipment scale (Calabrese et al, 1986;Maaß et al, 2007;Zhou and Kresta, 1998), to a scale comparable with the impeller dimensions (Liang et al, 2019;Maaß et al, 2009;Solsvik and Jakobsen, 2015) and further down to the droplet scale (Kamp and Kraume, 2016;Komrakova et al, 2015;Maaß et al, 2012) with the aid of numerical simulations, focusing on the relevant fluid dynamics scales and interactions.…”

Dynamic Characteristic Analysis of a Single Droplet in a Liquid‐Liquid Concave‐Wall Jet

“…For the discrete phase of the CCl 4 droplet, the continuity equation is defined by 1 r q t a q r q þ Á a q r q u q ! ¼ 0 (5) where r q is the discrete density. The singlemomentum equations shared by all phases are solved throughout the domain as follows:…”

“…It was a significant subject for our study to reduce the probability of single-droplet breakup in a cyclone [3][4][5][6][7][8]. However, the refraction problem caused by the two-phase flow near the wall was the primary reason for the experimental errors in the visualization technology.…”

Experimental Investigation on Single‐Droplet Deformation and Breakup in a Concave‐Wall Jet

“…The breakup probability P is defined as the ratio between the number of broken drops and the total number of injected drops under the same experimental conditions [14,[36][37][38]. The droplet deformation and breakup are governed by the capillary number [39][40][41][42][43].…”

“…A lot of effort has been spent to discuss the mechanism of droplet breakup with different inlet flow conditions. It was also proposed that the Ohnesorge (Oh) and Weber numbers were usually employed as critical parameters for droplet breakup [14,[45][46][47]. According to the study of Guildenbecher [47], the droplet breakup mode was mainly determined by the Weber number when Oh < 0.1.…”