Imperial College London

Professor Omar K. Matar

Faculty of EngineeringDepartment of Chemical Engineering

Vice-Dean (Education), Faculty of Engineering
 
 
 
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Contact

 

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

 
 
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Assistant

 

Miss Nazma Mojid +44 (0)20 7594 3918

 
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Location

 

506ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Seungwon:2018:10.1016/j.jcp.2018.01.010,
author = {Seungwon, S and Chergui, J and Juric, D and Kahouadji, L and Matar, OK and Craster, R},
doi = {10.1016/j.jcp.2018.01.010},
journal = {Journal of Computational Physics},
title = {A hybrid interface tracking – level set technique for multiphase flow with soluble surfactant},
url = {http://dx.doi.org/10.1016/j.jcp.2018.01.010},
volume = {359},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - A formulation for soluble surfactant transport in multiphase flows recently presented by Muradoglu & Tryggvason (JCP 274 (2014) 737–757) is adapted to the context of the Level Contour Reconstruction Method, LCRM, (Shin et al. IJNMF 60 (2009) 753–778) which is a hybrid method that combines the advantages of the Front-tracking and Level Set methods. Particularly close attention is paid to the formulation and numerical implementation of the surface gradients of surfactant concentration and surface tension. Various benchmark tests are performed to demonstrate the accuracy of different elements of the algorithm. To verify surfactant mass conservation, values for surfactant diffusion along the interface are compared with the exact solution for the problem of uniform expansion of a sphere. The numerical implementation of the discontinuous boundary condition for the source term in the bulk concentration is compared with the approximate solution. Surface tension forces are tested for Marangoni drop translation. Our numerical results for drop deformation in simple shear are compared with experiments and results from previous simulations. All benchmarking tests compare well with existing data thus providing confidence that the adapted LCRM formulation for surfactant advection and diffusion is accurate and effective in three-dimensional multiphase flows with a structured mesh. We also demonstrate that this approach applies easily to massively parallel simulations.
AU - Seungwon,S
AU - Chergui,J
AU - Juric,D
AU - Kahouadji,L
AU - Matar,OK
AU - Craster,R
DO - 10.1016/j.jcp.2018.01.010
PY - 2018///
SN - 0021-9991
TI - A hybrid interface tracking – level set technique for multiphase flow with soluble surfactant
T2 - Journal of Computational Physics
UR - http://dx.doi.org/10.1016/j.jcp.2018.01.010
UR - http://hdl.handle.net/10044/1/56237
VL - 359
ER -