Drop and bubble micro manipulator (DBMM)—A unique tool for mimicking processes in foams and emulsions

Won, Jooyoung; Krägel, J.; Makievski, A. V.; Javadi, Aliyar; Gochev, Georgi; Loglio, G.; Pandolfini, P.; Leser, Martin E.; Gehin-Delval, Cécile; Miller, R.

doi:10.1016/j.colsurfa.2013.04.027

Cited by 24 publications

(24 citation statements)

References 11 publications

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“…Details of the experimental set-up and methodology are further described by Eftekhardadkhah and Oye [14]. The experimental set-up applied by Eftekhardadkhah and Oye [14] is motivated by the work by Won et al [15]. The type of raw data obtained with the micromanipulator is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

Theoretical and Experimental Investigation of Film Drainage Time

et al. 2015

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In many industrial process units for dispersed liquid-liquid and gas-liquid flows, understanding of the fluid particle breakup and coalescence phenomena are important for optimal process operation. These phenomena do not only dominate the fluid particle size distributions, but also directly affect the mass, momentum and heat transfer through the renewal surface and thus the contact area. This work focuses on the coalescence process between two fluid particles; in particular the coalescence (film drainage) time which appears in some closures used to close the coalescence terms of the population balance equation (PBE). The coalescence time of different drop-drop and liquid-liquid systems were investigated experimentally by micromanipulator technique. Further, the derivation of the coalescence time model used in the popular coalescence closure by Prince and Blanch [1] has been analyzed. The results show significant deviation between the model prediction and experimental data of coalescence time.

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Section: Methodsmentioning

confidence: 99%

Theoretical and Experimental Investigation of Film Drainage Time

et al. 2015

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“…In the moment of coalescence a liquid bridge is formed between the two horizontal capillaries. Before the liquid bridge comes to rest, a certain oscillation can be observed and monitored by a high speed video technique [10]. Preliminary experiments show that the proposed technique also allows following the break-up of liquid bridge by slowly separating the capillaries to a certain distance.…”

Section: Dynamics Of Liquid Bridgesmentioning

confidence: 98%

“…To study the coalescence behavior of pairs of drops or bubbles, the Drop and Bubble Micro Manipulator (DBMM) (SINTERFACE Technology, Berlin) was developed as a new tool for a direct quantitative analysis of the interaction between two drops or two bubbles or even between a single drop and a bubble in a liquid medium [10]. It is an extension module of the Oscillating Drop and Bubble pressure Analyzer (ODBA) [4].…”

Section: Dynamics Of Drop-drop Interactionmentioning

confidence: 99%

“…Among different available experimental techniques, the most recently developed capillary pressure technique (CPT) [2][3][4][5] and profile analysis technique (PAT) [6][7][8][9] represent the leading edge of the experimental investigations on dynamics of single drops and bubbles. Furthermore, these techniques have also the potential to be applied to study the bubble/drop coalescence and splitting processes [10,11]. Note, oscillating drop and bubble experiments are also very essential for studying rheological properties of interfacial layers [6,12,13].…”

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confidence: 99%

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Dynamics of drops — Formation, growth, oscillation, detachment, and coalescence

Karbaschi

Rahni

Javadi

et al. 2015

Advances in Colloid and Interface Science

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“…Moreno et al concluded that the release of free surface energy drove the bubble contraction, expansion, and oscillation, creating a pressure difference across the bubble interface. Won et al have developed a novel measuring technique to quantitatively analyze the interaction and coalescence between two bubbles or drops. Recently, Soto et al investigated the coalescence of two microbubbles growing in water and concluded that the coalescing process consisted of neck formation, wave propagation, and bubble detachment.…”

Section: Introductionmentioning

confidence: 99%

Coalescence Characteristics of Side‐by‐Side Growing Bubbles in Carboxymethyl Cellulose Solutions

Fan

Sun

et al. 2019

Chem Eng & Technol

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New experimental data are presented on the coalescence dynamics of twin bubbles at two adjacent nozzles in carboxymethyl cellulose (CMC) solutions. The coalescence process was recorded by using a fast video technique and the images were then analyzed to evaluate the regime, efficiency, and patterns of bubble coalescence. The results reveal that the coalescence process contains the four periods of spherical expansion, rapid mergence, overall growth, and instant departure. The coalescence efficiency always passes through five stages with the gas flow rate; it grows with the CMC solution concentration, but decreases with the surfactant concentration, except at very low gas flow rates. The bubble coalescence pattern strongly depends on the nozzle spacing, but conditionally on the gas flow rate and the solution properties.

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Drop and bubble micro manipulator (DBMM)—A unique tool for mimicking processes in foams and emulsions

Cited by 24 publications

References 11 publications

Theoretical and Experimental Investigation of Film Drainage Time

Theoretical and Experimental Investigation of Film Drainage Time

Dynamics of drops — Formation, growth, oscillation, detachment, and coalescence

Coalescence Characteristics of Side‐by‐Side Growing Bubbles in Carboxymethyl Cellulose Solutions

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