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Job Record #17403
TitleMass transfer from core-shell cylinders subjected to flow
CategoryPhD Studentship
EmployerChina Scholarship Council / UT Compiegne (France)
LocationFrance, Compiegne
InternationalYes, international applications are welcome
Closure Date* None *
Description:
Université de Technologie de Compiègne

PhD Grants from the China Scholarship Council: PhD proposal for 2022

Thesis title: Mass transfer from core-shell cylinders subjected to flow

Keywords: Transport phenomena, computational fluid dynamics, lattice Boltzmann method, artificial lung, 
heat sink exchanger

Supervisor and contact person: Dr. Badr Kaoui, Biomechanics and Bioengineering, Université de Technologie 
de Compiègne, Compiègne, France / badr.kaoui@utc.fr

Summary: The project aims to study systematically mass transfer from initially loaded cylinders covered with 
a semi-permeable shell and subjected to flow. Two-dimensional computer simulations based on two-
component lattice Boltzmann method will be used to compute the flow around the cylinders and the mass 
transport of a released solute. Mass transfer efficiency will be characterized with the Sherwood number (the 
dimensionless transfer coefficient) as a function of different parameters, such as the shell permeability and 
the cylinders spatial arrangement. An in-house fully parallelized code developed with Fortran 2000 will be 
used together with the emerging techniques of machine learning to screen a wide range of control 
parameters. Access to modern advanced workstations and supercomputer platforms such as PILCAM2 of the 
UTC will be granted.

Planning of the PhD project:

1. First year: Extension of recent studies [1,2] to a large range of the blockage degree (ratio of the cylinder 
diameter to the width of the channel) to investigate numerically the effect of the confinement, which will be 
compared to the theory of Khan et al [3], while considering both cases: constant and varying boundary 
conditions at the surface of the cylinder,
2. Second year: Study the efficiency of mass transfer from a stationary array of core-shell cylinders, with the 
aim to complement the list of existing correlations in literature of heat efficiency in heat sink exchangers, 
while considering cylinders with semi-permeable shells (that adds an interfacial resistance). The model and 
the knowledge of this part of the project will be applied to model oxygen exchange in an array of cylinders for 
future design of artificial lungs,
3. Third year: Development of a numerical method to study mass transfer efficiency from a single core-shell 
cylinder, whose shell undergoes either growth or shrinkage (accumulation of an undesired matter or shell 
degradation due to aging), while coupling the lattice Boltzmann method (used for the transport phenomena) 
and the phase field model (used for the cylinder shape evolution). 

International collaborations with: 
CNR (Italy), Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (Germany), Massachusetts General 
Hospital (USA), University of South Africa (South Africa)

References:

[1] C. Bielinski , N. Le, and B. Kaoui, Unsteady mass transfer from a core-shell cylinder in crossflow, Physical 
Review Fluids 6, 023501 (2021)
[2] B. Kaoui, Flow and mass transfer around a core-shell reservoir, Physical Review E 95, 063310 (2017).
[3] W. A. Khan, J. R. Culham, and M. M. Yovanovich, Fluid flow and heat transfer from a cylinder between 
parallel planes, J. Thermophys. Heat Transfer 18, 395 (2004).
Contact Information:
Please mention the CFD Jobs Database, record #17403 when responding to this ad.
NameBadr Kaoui
Emailbadr.kaoui@utc.fr
Email ApplicationYes
AddressBiomechanics and Bioengineering,
Université de Technologie de Compiègne,
60200 Compiègne, France
Record Data:
Last Modified16:52:37, Thursday, October 21, 2021

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