My research is on advanced theoretical and computational methods applied to a range of engineering and environmental problems.

The methods I research are:
- Population Balance: A methodology for modelling systems such as particles, droplets and bubbles that exhibit a distribution of one or more properties such as particle size and morphology. The population balance has wide-ranging applications, from aerosols and crystallisation to clouds and colloids. I am particularly interested in problems involving coupling of population balance and fluid dynamics.
- Computational Fluid Dynamics (CFD) and Multiphysics: I am interested in problems involving coupling of CFD with particle formation/transport (via the population balance) and chemical reactions. For turbulent flows, we employ Large Eddy Simulation (LES) coupled with solvers for the population balance equation (PBE).
- Machine Learning: I am researching machine learning methods for accelerating simulations of problems in fluid dynamics, reacting flows and population balance, for problems such as energy generation from net zero carbon fuels.
- Molecular Modelling: I am interested in methods for studying the kinetic processes in the PBE such as particle nucleation and growth.

Areas of application include:
- Atmospheric aerosols: Current projects include contrails, where I study of the microphysics of their formation using population balance and fluid dynamics. Another project is on volcanic ash, its aggregation and transport and its impact on aviation. I am also working on machine learning methods for atmospheric aerosols.
- Sustainable energy from net zero carbon fuels: Application of machine learning to the simulation of reacting flows with ammonia and sustainable aviation fuels (SAFs).
- Nanoparticles: Synthesis of inorganic and carbonaceous nanoparticles for use as advanced materials in batteries and other applications. I study formation processes in laminar and turbulent flows with methods including population balance modelling, molecular modelling and machine learning.
- Colloids: Study of aggregation and fragmentation processes in colloidal systems such as keratin and mechanochemical processes.