Imperial College London
Portrait Picture

Professor Omar K. Matar, FREng

Faculty of Engineering, Department of Chemical Engineering

Head of Department of Chemical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 9618o.matar Website

 
 
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Assistant

 

Mr Avery Kitchens +44 (0)20 7594 6263

 
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Location

 

305 ACEACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Valdes:2023:10.1016/j.cej.2023.142248,
author = {Valdes, JP and Kahouadji, L and Liang, F and Shin, S and Chergui, J and Juric, D and Matar, OK},
doi = {10.1016/j.cej.2023.142248},
journal = {Chemical Engineering Journal},
pages = {1--18},
title = {Direct numerical simulations of liquid–liquid dispersions in a SMX mixer under different inlet conditions},
url = {http://dx.doi.org/10.1016/j.cej.2023.142248},
volume = {462},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The internal dynamics of static mixers handling liquid–liquid flows have been comprehensively explored over the past decade. Although the effect of the inlet configuration is often overlooked, a few studies have suggested a relationship between the phases’ initial set-up and the performance of the mixer in terms of the droplet size distribution (DSD). Accordingly, different dispersed phase morphologies at the inlet of a SMX static mixer have been tested and their effect on the overall dispersion performance of the mixer has been evaluated based on the DSD and growth of interfacial area. In particular, three representative scenarios are considered: (1) Isolated cases, where one and three individual droplets are injected, mimicking a controlled syringe injection; (2) Numerous variable-sized droplets, simulating a pre-mixed/dispersed inlet; and (3) Jet inlet, emulating a standard phase injection from a gear pump. In addition, this study provides novel insight into the underlying physics dictating droplet deformation and breakage in SMX mixers for industrially-relevant scenarios. This can be achieved thanks to the massively-parallel high-fidelity three-dimensional direct numerical simulations computed with a robust hybrid front-tracking/level-set algorithm, which provides a wealth of information on intricate interfacial dynamics; this information cannot be obtained via experimental or volume-averaged modelling techniques implemented in past studies.
AU  - Valdes,JP
AU  - Kahouadji,L
AU  - Liang,F
AU  - Shin,S
AU  - Chergui,J
AU  - Juric,D
AU  - Matar,OK
DO  - 10.1016/j.cej.2023.142248
EP  - 18
PY  - 2023///
SN  - 1385-8947
SP  - 1
TI  - Direct numerical simulations of liquid–liquid dispersions in a SMX mixer under different inlet conditions
T2  - Chemical Engineering Journal
UR  - http://dx.doi.org/10.1016/j.cej.2023.142248
UR  - http://hdl.handle.net/10044/1/103234
VL  - 462
ER  -
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