Determination of breakage rates using single drop experiments

Population balances combined with Computational Fluid Dynamics: A modeling approach for dispersive mixing in a high pressure homogenizer

“…In the experiments of Maaß and Kraume (2012) single droplet breakup events were monitored and the breakage function (Eq. (20)) was fitted to their data.…”

“…Because the breakage rate function was fitted to single droplet breakup events, instead of fitting the PBE to the droplet size distribution obtained after a myriad of breakup events. For that reason the parameters of Maaß and Kraume (2012) were tested in the population balance approach with the four compartments. The coalescence parameters K 3 and K 4 were retained from the earlier fit.…”

Rotating Arm-Based Experimental Study on Droplet Behavior in the Shoulder Region of an Aircraft Aerodynamic Surface

“…These PBE formulations are a class of very promising statistical-like methods thatare being used in this field. It is, also, interesting to quote, literally, what Maab and Kraume [18] write in the introduction section of their article: "the key challenge associated with the formulation of predictive PBE models is the experimental determination of unknown drop breakage and coalescence functions as sub-models in the PBE". That is, a possible way (among many others) to develop new methods and tools for the aeronautics industry could be the use of specific PBE formulations in which the required breakage functions are obtained via experiments, via models derived from the experiments, or via numerical simulations; see, for example, [19], for the numerical approach.…”

“…For a generic and, also, in depth description of these methods, see the review article of Lasheras et al [17]. Within this logic of development, it is relevant to refer to the article of Maab and Kraume [18] that uses single-drop experiments to determine the breakage rates that are needed in population balance equation (PBE) models. These PBE formulations are a class of very promising statistical-like methods thatare being used in this field.…”

Automated image analysis for trajectory determination of single drop collisions

“…These so called population balance equations allow the separate implementation of * corresponding author Email address: johannes.kamp@tu-berlin.de (Johannes Kamp) URL: www.vt.tu-berlin.de (Johannes Kamp), www.cv.tu-berlin.de (Ronny Hänsch) breakage and coalescence which occur simultaneously in a general dispersion [1,2,3]. Several research groups investigated the breakage [4,5,6,7] and coalescence [8,9,10,11] separately in order to validate and improve these modelling approaches. The investigations use digital high speed cameras to obtain a high spatial and temporal resolution.…”