Imperial College London


Faculty of EngineeringDepartment of Chemical Engineering

Honorary Research Fellow







City and Guilds BuildingSouth Kensington Campus





Dr. Alexandros Charogiannis received his degree in Mechanical Engineering (MEng ) from Imperial College London in 2009, majoring in Vehicle Propulsion Technology. Soon after, he commenced his Ph.D., focusing on the development and implementation of laser-diagnostic techniques in two-phase (gas-liquid) flows relevant to internal-combustion engine research. In 2013, he completed his Ph.D. following the successful defense of his thesis entitled “A laser induced phosphorescence imaging technique for the investigation of evaporating liquid flows”.  At his current role as a post-doctoral researcher at the Chemical Engineering Department, he investigates the effect of flow unsteadiness on the heat and mass transfer performance of thin liquid-film flows. His experiments are based on the application of advanced laser diagnostics such Planar Laser Induced Fluorescence (PLIF), Particle Image and Particle Tracking Velocimetry (PIV/PTV), and Infrared (IR) thermography. Alongside his primary role as an optical diagnostics expert, Alexandros is involved in Ph.D., MSc and occasional research student supervision.



Charogiannis A, Markides CN, 2019, Spatiotemporally resolved heat transfer measurements in falling liquid-films by simultaneous application of planar laser-induced fluorescence (PLIF), particle tracking velocimetry (PTV) and infrared (IR) thermography, Experimental Thermal and Fluid Science, Vol:107, ISSN:0894-1777, Pages:169-191

Cherdantsev AV, An JS, Charogiannis A, et al., 2019, Simultaneous application of two laser-induced fluorescence approaches for film thickness measurements in annular gas-liquid flows, International Journal of Multiphase Flow, Vol:119, ISSN:0301-9322, Pages:237-258

Charogiannis A, Sik An J, Voulgaropoulos V, et al., 2019, Structured planar laser-induced fluorescence (S-PLIF) for the accurate identification of interfaces in multiphase flows, International Journal of Multiphase Flow, Vol:118, ISSN:0301-9322, Pages:193-204

Franchini S, Charogiannis A, Markides CN, et al., 2019, Calibration of astigmatic particle tracking velocimetry based on generalized Gaussian feature extraction, Advances in Water Resources, Vol:124, ISSN:0309-1708, Pages:1-8

Charogiannis A, Denner F, Van Wachem B, et al., 2018, Experimental investigations of liquid falling films flowing under an inclined planar substrate, Physical Review Fluids, Vol:3, ISSN:2469-990X

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