Research into Multi-scale Examination of MultiPHase physIcs in flowS (MEMPHIS)

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Velocity field after coalescence of water droplet on an oil-water interface

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Domain decomposition over 163 = 4096 subdomains

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Droplet dynamics in stratifying horizontal gas-liquid flow

2 Oct 2017

1) Construction of complex shapes with BLUE 2) Multiphase Three-Dimensional Direct Numerical Simulation of Rotating Impeller with BLUE 3) Product Changeover DNS with BLUE 4) Direct Numerical Simulation of Vertical Surfactant-Laden Two-Phase Flow  

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26 Sep 2017

  youtu.be/6nPRLCZ8Xn8   Giota (UCL) youtu.be/N4YMKb9J08Y Mark (B’ham) youtu.be/9OEn8h8on8Q David (Notts) youtu.be/A_XoLeUbPyQ Lachlan (ICL, demo of Blue App)

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26 Sep 2017
25 Sep 2017

1) Study of a Stationary Taylor Bubble using the Brightness Based Laser Induced Fluorescence Technique 2) Understanding effect of orientation and pipe diameter on mean film thickness and frequency of waves 3) Multiphase Flow Measurements 4) Comparison of Disturbance Wave Parameters with Flow Orientation in Vertical Annular Gas-Liquid Flows in a Small Pipe  

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25 Sep 2017

1. Plug flow studies of non-Newtonian liquids in microchannels 2. Drop formation in microfluidic device: effect of soluble surfactant 3.Laser Imaging in Liquid-Liquid flows 4. Flow Pattern Transitions in Oil-Water Two-Phase flows 5. An Experimental Study on the Effect of Surfactants on Drop/interface Partial Coalescence  

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22 Sep 2017

1. Binary coalescence of surfactant-laden and surfactant-free drops (in collaboration with ICL) 2. Effect of soluble surfactant on kinetics of liquid bridges and formation of satellite droplets (in collaboration with ICL) 3. Three-dimensional direct numerical simulation of liquid-liquid plug formation in a complex cross shaped microchannels (in collaboration with ICL) 4. Fluid displacement in micro-channels 5. Understanding of interaction between drop formation, polarity of surfactant and electrical field for the production of water in oil emulsion      

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1 Aug 2017

The work entitled as ‘Comparison of Disturbance Wave Parameters with Flow Orientation in Vertical Annular Gas-Liquid Flows in a Small Pipe’ has been presented at the 9th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics on 12th – 15th of June in Brazil. It is with great pleasure to announce that the conference paper has been selected for submission to the Virtual Special Issue of Experimental Thermal and Fluid Science dedicated to ExHFT-9. Please find below the abstract of the aforementioned paper: COMPARISON OF DISTURBANCE WAVE PARAMETERS WITH FLOW ORIENTATION IN VERTICAL ANNULAR GAS-LIQUID FLOWS IN A SMALL PIPE Joao Vasques*, Mikhail  [ Read More ]

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1 Aug 2017

The flow driven by a rotating impeller inside an open fixed cylindrical cavity is studied numerically using the code BLUE,  a solver for massively parallel simulations of fully three-dimensional multiphase flows. The impeller is composed of four blades at a 45 degree inclination all attached to a central hub and tube stem.  In BLUE, solid forms are constructed by means of a module for the definition of immersed objects via a distance function that takes into account the object’s interaction with the flow for both single and two-phase flows. This distance function is positive in the fluid phase and negative in  [ Read More ]

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31 Jul 2017

Evita gave an oral talk at ‘International Symposium on Mixing in Industrial Processes IX’ on Mixing during plug flow of shear-thinning liquids in microchannels Evita Roumpea, Maxime Chinaud, Panagiota Angeli

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27 Jul 2017

Comparative results of experimental (University of Birmingham) and numerical (Imperial College London) study of bulk flows accompanying the mixing of two drops of different composition or/and size have been published in Soft Matter paper Bulk advection and interfacial flows in the binary coalescence of surfactant-laden and surfactant-free drops by Emilia Nowak, Zhihua Xie, Nina Kovalchuk, Omar Matar and Mark Simmons. The high speed recordings of coalescing drops can be found in Supporting Information, an example is given in SI S2 Abstract This work focuses on the study of bulk flows accompanying the coalescence of two aqueous drops, one containing surfactant and the  [ Read More ]

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