Charged-Fuel Atomisation and Spray Control in Crossflows

The development of new combustion and fuel-injection technologies is essential for enabling the effective use of Sustainable Aviation Fuels (SAFs), while reducing carbon emissions and exhaust pollutants from future aeroengines. Electrostatic atomisation offers a promising approach by generating fine, electrically charged droplets and enabling control of spray trajectory through applied electric fields. However, the fundamental behaviour and stability of charged liquid jets in gas-turbine-relevant crossflows remain insufficiently understood. This project will address this challenge by developing an innovative system that independently controls liquid atomisation and droplet residence time through the integration of multiphysics and multiphase approaches, i.e., using electrostatic atomisation and droplet trajectory control. The research will investigate the electrical charging of liquid fuels and its influence on spray formation, droplet dynamics and dispersion. Particular attention will be given to charging techniques suitable for non-polar SAFs which are difficult to charge using conventional high-voltage capillary methods because of their high electrical resistivity and limited ionic mobility. The project will integrate fuel charging and atomisation within a spray-in-crossflow configuration that is relevant to aeroengine combustors. Experiments will examine the behaviour and interaction of charged droplets in turbulent crossflows, with the aim of improving spray control, fuel–air mixing and combustion efficiency.

The ideal candidate will be interested in fluid dynamics, reacting flows, and laser diagnostics and have programming experience in at least one language (e.g., Python, MATLAB, etc.). The selection process considers the comprehensive strength of the entire application, including the academic qualifications, personal statement, CV, and references. Ideally, candidates should have a strong background in fluid dynamics and the development of experimental methodologies.  The project includes close collaboration with University of Nottingham and the possibility of research visits during the PhD research. The successful candidate will join the Experimental MultiPhysics and MultiPhase flow group, The E(MP)² Group. The E(MP)² Group focuses on experimental investigation and theoretical modelling of complex multiphase systems, specifically, particle dynamics and spray characteristics in extreme and turbulent conditions for developing sustainable energy technologies for power and propulsion. The successful candidate will be co-supervised by Dr Khushboo Pandey and Dr Rohit Pillai. 

The intended PhD start date is in late Summer 2027. If a suitable candidate is found, this position may close earlier than the closing date. 

• a 2:1 undergraduate degree (or equivalent).
• applicant's must meet the University’s English language requirements.

The candidate should also have a master’s degree in either Physics or Engineering.

Applications are welcomed from self-funded students, or students who are applying for scholarships from the University of Edinburgh or elsewhere.

Competition funding (EPSRC) may be available for an exceptional candidate.

Further information and other funding options.