Gas-particle flows are central to many industrial processes such as fluid
catalytic cracking, coal combustion, pyrolysis, chemical looping combustion etc.
In these processes, the gas-particle flows exhibits heterogeneity at multiple
scales. At the particle scale, the flow exhibits formation of particle
aggregates, so called “meso-scale structures” or “clusters”. These clusters are
not only responsible for the gas-solid flow structures inside the equipment but
also dictate heat, mass, momentum and species transports. Current knowledge on
the clusters is limited, and it is extremely critical to characterize (such as
shape, size and fractions) of the clusters at various flow conditions. And then,
the cluster characteristics at different flow conditions can be further used to
capture them in the CFD simulations.
Focusing on the objective to understand the clusters and their impact at various
flow conditions, the proposed PhD project will conduct direct numerical
simulations (DNS) of gas-particle flow using the lattice-Boltzmann (LB) and
discrete element methods (DEM). Following tasks will be completed, (1)
development of LBM-DEM algorithm, (2) implementation of the LBM-DEM algorithm in
a computer code using C-programing and openmpi, (3) carryout extensive
Key contributions of this project will be (i) high resolution cluster-scale
numerical observations, (ii) effects of flow conditions on the cluster
properties, (iii) resultant gas-solid drag that accurately account for the
For this project, we are seeking highly motivated chemical/mechanical
engineering graduates with skills in computer programming and computational
fluid dynamics. The candidate must have an excellent academic record and possess
reasonable expertise in computer programming languages such as FORTRAN, C, C++.
The candidate is also required to be familiar with multiphase flow modelling
techniques such as Eulerian model, Langrangian model, Lattice Boltzmann method.
Experience in parallel programing and HPC will be added bonus.
For a qualified candidate, the PhD program will be commenced immediately with
the scholarship of approximately AUD 25000 per year (tax-free). The program will
be for the total duration of 3 years.
Inquiries and applications should be sent by email to Dr. Milinkumar Shah
(firstname.lastname@example.org). Applications should include a detailed CV, a
cover letter with a short statement of research interests and motivation, two
names of potential referees, complete list of publications, and a page proposal
on the subject. Applications should be received before 15th September, 2014 for
full consideration. Later applications will also be accepted until the suitable
candidate is identified.