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![]() Professor Contact - Personnal web page Recent publications received an MSc degree in Naval Architecture & Marine Engineering from the National Technical University of Athens and MSc and PhD degrees in Aeronautics from the California Institute of Technology (Caltech). Soon after the completion of his PhD, he joined the Engineering Staff of NASA's Jet Propulsion Laboratory. While at NASA, he worked mainly on thermal control and optical modeling of space telescopes, including the James Webb Space Telescope (JWST) and the Laser Interferometry Space Antenna (LISA). In 2002 he became a member of the academic personnel (faculty) at UCL where he remains until now. He is the recipient of the William Balhaus Dissertation Prize of Caltech, NASA's Space Act Award, and the NOVA Award of Excellence of NASA. Prof. Papalexandris is an Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA). The research activities of his group lie primarily on the fields of Theoretical and Computational Fluid Dynamics with particular emphasis on the fundamentals of multi-phase flows, complex fluids, reacting flows, and electrohydrodynamics. These activities cover: i) development of mathematical models for the flows of interest, ii) algorithm development and implementation for these models, iii) software verification and validation, and iv) detailed numerical studies and simulations via high performance computing. IMMC main research direction(s): Computational science Energy Fluid mechanics Keywords: non-equilibrium thermodynamics reacting flows two-phase flows Research group(s): TFL PhD and Post-doc researchers under my supervision:
Recent publicationsJournal Articles1. Varsakelis, Christos; Gelbgras, Valérie; Papalexandris, Miltiadis. On the wall boundary condition for the velocity in concentrated suspensions. In: Journal of Non-Newtonian Fluid Mechanics, Vol. 305, no., p. 104830 (2022). doi:10.1016/j.jnnfm.2022.104830. http://hdl.handle.net/2078.1/260901 2. Sula, Constantin; Grosshans, Holger; Papalexandris, Miltiadis. Large‐Eddy Simulations of Spray a Flames Using Explicit Coupling of the Energy Equation with the FGM Database. In: Flow, Turbulence and Combustion, Vol. 109, no., p. 193-223 (2022). doi:10.1007/s10494-022-00320-2. http://hdl.handle.net/2078.1/260950 3. Riffard, Anouk; Papalexandris, Miltiadis. Numerical study of the collapse of columns of sand immersed in water using two-phase flow modeling. In: International Journal of Multiphase Flow, Vol. 153, p. 104143 (2022). http://hdl.handle.net/2078.1/261158 4. Calero, Mathieu; Grosshans, Holger; Papalexandris, Miltiadis. A computational framework for electrification of liquid flows. In: Journal of Loss Prevention in the Process Industries, Vol. 74, no.c, p. 104637 (2021). doi:10.1016/j.jlp.2021.104637. http://hdl.handle.net/2078.1/250811 5. Marichal, Joauma; Papalexandris, Miltiadis. On the dynamics of the large scale circulation in turbulent convection with a free-slip upper boundary. In: International Journal of Heat and Mass Transfer, Vol. 183, no.C, p. 122220 (2022). doi:10.1016/j.ijheatmasstransfer.2021.122220. http://hdl.handle.net/2078.1/254590 6. Hay, William Andrew; Martin, Jimmy; Migot, Benoît; Papalexandris, Miltiadis. Turbulent thermal convection driven by free-surface evaporation in cuboidal domains of different aspect ratios. In: Physics of Fluids, Vol. 33, no.1, p. 015104 (2021). doi:10.1063/5.0035277. http://hdl.handle.net/2078.1/240330 7. Grosshans, Holger; Bissinger, Claus; Calero, Mathieu; Papalexandris, Miltiadis. The effect of electrostatic charges on particle-laden duct flows. In: Journal of Fluid Mechanics, Vol. 909, no., p. A21 (2021). doi:10.1017/jfm.2020.956. http://hdl.handle.net/2078.1/240331 8. Papalexandris, Miltiadis. Attenuation of gaseous detonations by porous media of fine microstructure. In: Combustion and Flame, Vol. 232, no., p. 111518 (2021). doi:10.1016/j.combustflame.2021.111518. http://hdl.handle.net/2078.1/247972 9. Papalexandris, Miltiadis. On the applicability of Stokes’ hypothesis to low-Mach-number flows. In: Continuum Mechanics and Thermodynamics, Vol. 32, no. 4, p. 1245-1249 (2020). doi:10.1007/s00161-019-00785-z. http://hdl.handle.net/2078.1/219906 10. Sula, Constantin; Grosshans, Holger; Papalexandris, Miltiadis. Assessment of Droplet Breakup Models for Spray Flow Simulations. In: Flow, Turbulence and Combustion, Vol. 105, no.3, p. 889-914 (2020). doi:10.1007/s10494-020-00139-9. http://hdl.handle.net/2078.1/232341 Conference Papers1. Marichal, Joauma; Papalexandris, Miltiadis. Numerical study of flow reorientations in turbulent convection with a free-slip upper boundary. In: Proceedings of the 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH19), American Nuclear Society, 2022, 9789076971261 xxx. http://hdl.handle.net/2078.1/258342 2. Hamtiaux, Victoria; Papalexandris, Miltiadis. Numerical simulation of thermal convection over anfd through an internally heat porous medium. In: Proceedings of the 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics NURETH19, American Nuclear Society, 2022, 9789076971261 xxx. http://hdl.handle.net/2078.1/258344 3. Marichal, Joauma; Papalexandris, Miltiadis. Numerical simulation of evaporation driven turbulent convection with a descending free surface. 2021 xxx. http://hdl.handle.net/2078.1/251439 4. Riffard, Anouk; Papalexandris, Miltiadis. Collapse of sand columns submerged in water: the role of the aspect ratio and the grain size. 2021 xxx. http://hdl.handle.net/2078.1/251437 5. Grosshans, Holger; Papalexandris, Miltiadis. Influence of electrostatic charges on particle-laden flows. 2021 xxx. http://hdl.handle.net/2078.1/251440 6. Calero, Mathieu; Grosshans, Holger; Papalexandris, Miltiadis. Numerical study of electric-charge diffusion in wall-bounded flows of dielectric liquids. 2021 xxx. http://hdl.handle.net/2078.1/251441 7. Hamtiaux, Victoria; Papalexandris, Miltiadis. Numerical simulations of turbulent thermal convection in mixed pure fluid – porous domains. 2021 xxx. http://hdl.handle.net/2078.1/251438 8. Calero, Mathieu; Grosshans, Holger; Papalexandris, Miltiadis. A computational framework for electrification of turbulent liquid flows. In: Proceedings, 13th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions (ISHPMIE2020), 2020, 226-237 xxx. doi:10.7795/810.20200724. http://hdl.handle.net/2078.1/230614 9. Hamtiaux, Victoria; Papalexandris, Miltiadis. Modelling and simulation of natural convection in cavities with immersed internally heated porous structures. 2020 xxx. http://hdl.handle.net/2078.1/236607 10. Riffard, Anouk; Papalexandris, Miltiadis. Influence of the initial volume fraction on the collapse of submerged granular columns. 2020 xxx. http://hdl.handle.net/2078.1/236605 Books1. Papalexandris, Miltiadis. Combustion and Fuels. Presses Universitaires de Louvain: Louvain-la-Neuve, 2020. 978-2-87558-979-8; 978-2-87558-980-4. 188 pages. http://hdl.handle.net/2078.1/191232 2. Papalexandris, Miltiadis. Unsplit numerical schemes for hyperbolic systems of conservation laws with source terms. 1997. 978-0-591-49445-7. 148 pages. http://hdl.handle.net/2078.1/70733 |