(2ko) Numerical Simulations of Multiphase Flows

I aim to develop capabilities for the simulation of multiphase/complex flows, fluid-structure interaction, and data-driven techniques for turbulence. Achieving a fundamental understanding of the complex dynamics associated with these flows and embedding this knowledge into numerical-codes/reduced-order- models (via data-driven techniques) capable of efficient and reliable quantitative predictions of the flow characteristics will be the main theme of my group. I will focus on three main themes:

Surfactant-laden multiphase flows: surfactants are of paramount importance to industrial applications in energy, manufacturing, and healthcare. I will focus on the effect of the presence of surfactants in viscoelastic flows (from a perspective of respiratory flows), and surfactant-driven effects above the critical micelle concentration (highly relevant to industrial applications).

Data-driven fluid dynamics: fluid flows are characterised by chaotic dynamics, a large number of degrees of freedom, and multiscale structure in space and time. The Navier-Stokes equations can be characterised by a much smaller number of dimensions, because the long-time dynamics lie on a finite-dimensional manifold. My group will focus on the development of data-driven reduced-order modelling methods to find the manifold of chaotic systems, and use Koopman embeddings to find a linear coordinate transformation of the chaotic dynamics.

Environmental flows: marine plastic debris floating on the ocean surface is a major environmental problem. Better understanding of the close interplay between the debris (modelled as deformable/rigid solids) with the ocean will be the focus of my group. I will solve Fluid-Structure-Interaction problems in a three-dimensional setting.

Teaching interests:

Over the past several years, I have developed a teaching philosophy that is rooted in student empowerment and hands-on learning. I have developed a track record of undergraduate and postgraduate teaching across a wide range of subject areas at Imperial College London, including mathematics, various branches of engi- neering, computing (OpenFOAM training, Linux desktop computing, Front Tracking method), and student supervision. My roles have involved tutorial sessions (∼ 10 students), revisions, supervising coursework, and grading.