Project Details:
Structural and topological information play a key role in behaviour of flow and
transport through very complex geometries. Examples range from flows through rocks
(relevant to oil and gas industry), medical applications like body cell
absorption/extraction of fluids, urban flows, flows past canopies in either
textiles or when looking at tree configurations in forests, to flows in media with
dynamically changing configurations of bubbles. Scales involved can vary from
microfluids to large geological formations.
Porous media flows are often modelled using approximations such as Darcy that offer
efficient simulations in which only general effects of geometries are taken into
account, but the actual geometry representation is ignored. However, for some
problems the validity of these large-scale models is unproven especially when
gaining experimental data is difficult or even impossible.
This project offers an opportunity to use a novel immersed boundaries based
numerical approach developed at Loughborough University to perform challenging
direct pore simulations reflecting the fine-scale processes, thus enabling either
the validation of the large-scale models for a given class of problems or providing
data allowing derivation of new more accurate approximations. There is also a
possibility to employ Artificial Intelligence techniques to speed up computations
further by identifying preferred directions of flow in the porous media networks –
mimicking phenomena occurring in nature. The same numerical approach opens
additional avenues for investigations of larger than porous media scale of complex
geometries and can be easily applied to challenging problems of flows with moving
boundaries. Accurate simulations of flows through such very complex geometries are
seldom attempted and the project is likely to provide the first-ever computations
of its kind. The numerical approach employs a massively parallel, high-resolution
scheme, with available DNS, LES, ILES and DES turbulence treatments.
The project’s objectives:
The new numerical approach will be used to simulate flows passing through very
complex geometries for a class of problems – selected to complement one of the
Wolfson School’s current design and experimental research activities. Simulations
will be very challenging and will require an elaborate preparation phase.
Numerical developments will be performed to facilitate analysis of the simulations,
aid a possible validation or identification of new large-scale approximation
models, and to implement AI to localise potentially preferred flow paths.
Analysis of results will be conducted aiming at providing/discovering new flow
characterisation and fundamental understanding of physics.
The results will be post processed to aid design and experimental activities in the
Wolfson School. Among other application options, this project will be able to
support our activities in areas such as: energy-harvesting microclimate sensors in
forests; convective CO2 trapping: a pore scale microfluidic investigation; or pore
scale dynamics in manufacturing of bone specimens.
Supervisors:
Primary supervisor: Professor Joanna Szmelter
Secondary supervisor: Dr Minsuok Kim
Funding:
The Wolfson School’s studentship competition offers the chance for UK and
International applicants who are interested in undertaking a PhD to have their
full-time studies paid for.
Applicants could receive full or partial funding for 3 years, including a tax-free
stipend of £17,668 (2022/23 rate) per annum, and/or a tuition fee waiver.
Studentships will be awarded on a competitive basis to applicants who have applied
to advertised projects within Wolfson School with the reference ‘P1-SAM23’.
Successful candidates will be notified by the end of March 2023.
Entry requirements for United Kingdom
Successful applicants should have, or expect to achieve, an undergraduate honours
degree with a minimum classification of a 2:1, or equivalent in a relevant subject
for the PhD topic. A relevant master’s degree and/or experience would also be
advantageous.
English language requirements
Applicants must meet the minimum English language requirements. Further details are
available on the International website.
All applications should be made online through the Loughborough University website.
Under programme name, select ‘Mechanical, Electrical and Manufacturing
Engineering’. Please quote reference number: P1SAM23-04 in your application.
Competition for funded entry is high so please ensure that you submit a CV and the
minimum supporting documents by the advert closing date. Failure to do so will mean
that your application will not be taken forward for consideration. See studentship
assessment criteria.
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