John Coull

John Coull is an Associate Professor in the Engineering Science Department at the University of Oxford. His research focuses on turbine aerodynamics, heat transfer and cooling, boundary layer transition, aerodynamic measurement techniques, computational fluid dynamics (CFD), and Micro-Electro-Mechanical-Systems (MEMS) sensors. Coull completed his undergraduate degree in Engineering at the University of Cambridge and earned his PhD under the supervision of Prof Howard Hodson at the Whittle Laboratory. He held the post of Rolls-Royce Senior Research Fellow at Magdalene College, Cambridge from 2010 to 2019. His work includes numerical modeling, experimental investigations, and the development of MEMS-based probes for aerodynamic measurements.

John Coull is a researcher at the University of Oxford, focusing on aerothermal performance and fluid dynamics in turbine systems. His work explores unsteady boundary-layer transition, endwall loss, and blade loading in low- and high-pressure turbines. Coull investigates the impact of boundary conditions, tip leakage flow, and combustor turbulence on turbine efficiency. He also examines advanced turbine blade designs, including vortex generator jets and shroudless blade configurations, to minimize losses. His research includes experimental and numerical studies on thermal flow sensors, MEMS devices, and high-efficiency cavity winglets. Coull's contributions span both fundamental fluid dynamics and applied engineering solutions for improved turbine performance.