Yannis Hardalupas

Sustainable Energy  Multiphase Flows  Dynamics Contact details: Room 604, Mechanical Engineering Building Tel: +44 (0)20 7594  7057 Fax: +44 (0)20 7594  1472 Email: y.hardalupasimperial.ac.uk

• Development and application of optical experimental methods in combustion, liquid atomisation and two-phase flows. The techniques include laser Doppler velocimeter (LDV), phase Doppler velocimeter (PDV), shadow Doppler velocimeter (SDV), particle tracking velocimeter (PTV) and Particle Image Velocimetry (PIV), flame chemiluminescence and laser induced fluorescence (LIF) of flame species and fuel vapour, planar droplet sizing and velocimetry (combined Mie/LIF technique and Interferometric Laser Imaging Droplet Sizing (ILIDS))
• Experimental study of control of emissions and combustion oscillations for improved thermodynamic cycle efficiency of land-based gas turbines and industrial burners
• Experimental study of control of emissions from Gasoline and Diesel engines - control of in-cylinder combustion and catalytic exhaust after-treatment
• Development of flame sensors and optical instrumentation for quantitative imaging of temperature, heat release and mixing of air and fuel in flames (power generation and propulsion industries)
• Experimental study of atomisation of liquid fuels and internal flow characteristics and liquid cavitation in injectors
• Experimental study of particle pair dispersion and development of numerical models for particle pair dispersion and particle collisions
• Development of optical particle sizing and composition of Nanoparticles
• Particle agglomeration and granulation with applications in the chemical industry
• Coating and cleaning of surfaces with applications in the food industry
• Development of computer models for atomisation, particle/droplet dispersion and particle/droplet collision and agglomeration.

• Undergraduate Courses / Modules - Organiser, Heat Transfer
• Postgraduate Courses / Modules -Organiser, Interfacing and Data Processing

• Unwin Prize for exceptional merit of PhD thesis, Imperial College London, 1990 
• Advanced Fellowship, Engineering Physical Sciences Research Council (EPSRC), 1994  
• Industrial Secondment, Royal Academy of Engineering, 1999

• Panel member, EPSRC network on Electricity Supply Research (ESR)
• Panel member, Technical Committee, Propellants and Combustion, American Institute of Aeronautics and Astronautic 

• Greek Chamber of Chartered Engineers, Member 
• Combustion Institute (British Section), Member
• American Institute of Aeronautics and Astronautics (AIAA), Senior Member
• Society of Automotive Engineers (SAE), Member
• International Liquid Atomisation and Spray Systems (ILASS), Member
• Institute of Physics (IOP), Associate Member

2003 - date  Reader in Multiphase Flows, Imperial College, Mechanical Engineering Department

1999 - 2000 Royal Academy of Engineering Industrial Secondment to Ricardo Consulting Engineers Ltd

1998            Invited Guest Scholar in DLR (German Aerospace Laboratories), Goettingen

1998 - 2003 Lecturer, Imperial College, Mechanical Engineering Department

1996             Invited Guest Scholar in Shibaura Institute of Technology, Tokyo, Japan.

1994 - 1998 Advanced Research Fellow of the Engineering and Physical Sciences Research Council, Imperial College, Mechanical Engineering Department

1991 - 1994 Research Fellow, Imperial College, Mechanical Engineering Department

1990 - 1991 Research Associate, Imperial College, Mechanical Engineering Department

1989           PhD and DIC, Imperial College, Mechanical Engineering Department

1984 - 1988 SERC/CEGB Research Assistant, Imperial College, Mechanical Engineering Department

1978 - 1984 National Technical University of Athens, Greece, Diploma (Eng.) - Mechanical Engineering

Journal Articles  

• Rossi, L, Vassilicos, JC, Hardalupas, Y, Eulerian-Lagrangian aspects of a steady multiscale laminar flow, PHYS FLUIDS, 2007, Vol: 19, ISSN: 1070-6631
• Hardalupas, Y, Horender, S, Phase Doppler anemometer for measurements of deterministic spray unsteadiness, PART PART SYST CHAR, 2001, Vol: 18, Pages: 205 - 215, ISSN: 0934-0866
• Rossi, L, Vassilicos, JC, Hardalupas, Y, Electromagnetically controlled multi-scale flows, J FLUID MECH, 2006, Vol: 558, Pages: 207 - 242, ISSN: 0022-1120
• Aleiferis, PG, Charalambides, AG, Hardalupas, Y, et al , Axial fuel stratification of a homogeneous charge compression ignition (HCCI) engine, INT J VEHICLE DES, 2007, Vol: 44, Pages: 41 - 61, ISSN: 0143-3369
• Rossi, L, Vassilicos, JC, Hardalupas, Y, Multiscale laminar flows with turbulentlike properties., Phys Rev Lett, 2006, Vol: 97, Pages: 144501 - 144501, ISSN: 0031-9007 ( publication )
• Donmann,R., Hardalupas,Y., Evaluation of a Planar Droplet Sizing (PDS) technique, Journal of the ILASS - Japan, 2000, Vol: 9, Pages: 7 - 17, ISSN: 1341-6022
• Hardalupas,Y., Pantelides,K., Whitelaw,J.H., Particle tracking velocimetry in swirl-stabilised burners, Experiments in Fluids, 1999, pages: 201 - 208, ISSN: 0723-4864
• Hardalupas,Y., Taylor,A.M.K.P., Wilkins,J.H., Experimental investigation of sub-millimetre droplet impingement onto spherical surfaces, International Journal of Heat and Fluid Flow, 1999, Vol: 20, Pages: 477 - 485, ISSN: 0142-727X
• Hardalupas,Y., Selbach,A., Whitelaw,J.H., Aspects of oscillating flames, Journal of Visualization, 1998, Vol: 1, Pages: 79 - 86, ISSN: 1343-8875
• Okamoto,S., Hardalupas,Y., Fujita,J., et al , Unsteady flow around two-dimensional circular cylinder bundles in fluid elastic vibration, Transactions of the Japan Society of Mechanical Engineers Series B, 1998, Vol: 97, Pages: 3565 - 3573
• Hardalupas,Y., Prassas,I., Whitelaw,J.H., Centrifuging effects on pulverised coal particles in a gas-piloted swirl-stabilised flame, Gas Particle Flows, 1997
• Hardalupas,Y., Liu,C.H., Implications of the Gaussian intensity distribution of laser beams on the performance of the phase Doppler technique: sizing uncertainties, Progress in Energy and Combustion Science, 1997, Vol: 23, Pages: 41 - 63, ISSN: 0360-1285
• Hardalupas,Y., Whitelaw,J.H., Interaction between sprays from multiple coaxial airblast atomizers, Transactions of the ASME Journal of Fluids Engineering, 1996, Vol: 118, Pages: 762 - 771, ISSN: 0098-2202
• Hardalupas,Y., Tsai,R.F., Whitelaw,J.H., Experiments with coaxial airblast atomizers, Entropie 200 Numero special moteur, 1996, Pages: 17 - 28, ISSN: 0013-9084
• Aleiferis, PG, Hardalupas, Y, Taylor, AMKP, et al , Cyclic variations of fuel-droplet distribution during the early intake stroke of a lean-burn stratified-charge spark-ignition engine, EXP FLUIDS, 2005, Vol: 39, Pages: 789 - 798, ISSN: 0723-4864
• Hardalupas, Y, Orain, M, Local measurements of the time-dependent heat release rate and equivalence ratio using chemiluminescent emission from a flame, COMBUST FLAME, 2004, Vol: 139, Pages: 188 - 207, ISSN: 0010-2180
• Hardalupas, Y, Orain, M, Panoutsos, CS, et al , Chemiluminescence sensor for local equivalence ratio of reacting mixtures of fuel and air (FLAMESEEK), APPL THERM ENG, 2004, Vol: 24, Pages: 1619 - 1632, ISSN: 1359-4311
• Gillet, B, Hardalupas, Y, Kavounides, C, et al , Infrared absorption for measurement of hydrocarbon concentration in fuel/air mixtures (MAST-B-LIQUID), APPL THERM ENG, 2004, Vol: 24, Pages: 1633 - 1653, ISSN: 1359-4311
• Aleiferis, PG, Hardalupas, Y, Taylor, AMKP, et al , Flame chemiluminescence studies of cyclic combustion variations and air-to-fuel ratio of the reacting mixture in a lean-burn stratified-charge spark-ignition engine, COMBUST FLAME, 2004, Vol: 136, Pages: 72 - 90, ISSN: 0010-2180

Chapters in books

• Hardalupas,Y., Selbach,A., Whitelaw,J.H., Liquid-fuelled flames with imposed air oscillations, In: Adrian,R.J., Durao,D.F.G., Durst,F., Heitor,M.V., Maeda,M., Whitelaw,J.H., editor, Laser Techniques Applied to Fluid Mechanics, Berlin, Springer Verlag, 1999, Pages: 403 - 416, ISBN: 3540 667 385
• Hardalupas,Y., Whitelaw,J.H., Coaxial airblast atomizers with swirling air stream, In: Kuo,K.K., editor, Recent Advances in Spray Combustion: Spray Combustion Measurements and Model Simulation, Washington, AIAA, 1996, Pages: 201 - 232, ISBN: 1-5634-7181-7
• Hardalupas,Y., Tagawa,M., Taylor,A.M.K.P., Characteristics of counter-gradient heat transfer in a non-premixed swirling flame Developments in laser techniques and applications to fluid mechanics, Applications of Laser Techniques to Fluid Mechanics, Springer Verlag, 1996, Pages: 159 - 184, ISBN: 3540602364
• Hardalupas,Y., Tsai,R.F., Whitelaw,J.H., Spray unsteadiness in coaxial airblast atomisers, Heat Transfer in Fire and Combustion Systems, ASME, 1996, Pages: 331 - 342, ISBN: 0-7918-1523-4
• Hardalupas,Y., Liu,C.H., Tsai,R.F., et al , Coaxial atomization and combustion, In: Chiu,H.H., Chigier,N., editor, Mechanics and Combustion of Droplets and Sprays Taiwan, Begell House, 1996, Pages: 22 - 52, ISBN: 1567000517

Conference Contributions

• ENGELBERT, C, HARDALUPAS, Y, WHITELAW, JH, Breakup phenomena in coaxial airblast atomizers, Osborne-Reynolds Centenary Symposium, 1995, Pages: 189 - 229
• Hardalupas, Y, Moreira, ALN, Taylor, AMKP, et al , Evaluation of the phase Doppler technique for the measurement of bubbles, 2nd International Conference on Multiphase Flow, 1995, Pages: 721 - 731
• Hardalupas, Y, Selbach, A, Whitelaw, JH, Liquid-fuelled flames with imposed air oscillations, 9th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2000, Pages: 403 - 416
• Hardalupas, Y, Pantelides, K, Whitelaw, JH, Particle tracking velocimetry in swirl-stabilised burners, 3rd International Workshop on Particle Image Velocimetry, 2000, Pages: S220 - S226
• Hardalupas, Y, Horender, S, Phase Doppler anemometer for measurements of deterministic spray unsteadiness, 10th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2001, Pages: 205 - 215
• Domann, R, Hardalupas, Y, Quantitative measurement of planar droplet Sauter Mean Diameter in sprays using Planar Droplet Sizing, 11th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2003, Pages: 209 - 218
• Zimmer, L, Domann, R, Hardalupas, Y, et al , Simultaneous laser-induced fluorescence and Mie scattering for droplet cluster measurements, AIAA 40th Aerospace Sciences Meeting, 2003, Pages: 2170 - 2178
• Gillet, B, Hardalupas, Y, Kavounides, C, et al , Infrared absorption for measurement of hydrocarbon concentration in fuel/air mixtures (MAST-B-LIQUID), 1st International Conference on Industrial Gas Turbine Technologies, 2004, Pages: 1633 - 1653
• Hardalupas, Y, Orain, M, Panoutsos, CS, et al , Chemiluminescence sensor for local equivalence ratio of reacting mixtures of fuel and air (FLAMESEEK), 1st International Conference on Industrial Gas Turbine Technologies, 2004, Pages: 1619 - 1632
• Hardalupas,Y., Kavounides,C., Taylor,A.M.K.P., Simultaneous size and velocity measurements in a laboratory spray dryer, Proceedings 4th international conference of multiphase flows ICMF-2004, Yokohama, Japan, May-4 June 2004, In: Matsumoto,Y., editor, 2004
• Gillet,B., Hardalupas,Y., Taylor,A.M.K.P., Influence of projection width and spatial gradient of concentration on algebraic reconstruction tomography (ART) for measurements of hydrocarbon fuel/air mixtures, 42nd AIAA aerospace science meeting and exhibit, Reno, Nevada, 5 - 8 Januray 2004 (AIAA - 2004 - 0648), AIAA, 2004, Pages: 1 - 11
• Akbar,M.I., Hardalupas,Y., Taylor,A.M.K.P., How important to the far field droplet flux distribution is the initial atomization of a urea spray injected into the hot exhaust of a diesel engine?, Proceedings 10th Asian congress of fluid mechanics, Peradeniya, Sri Lanka, 17 - 21 May 2004, 2004, Pages: 778 - 783
• Hardalupas,Y., Moran,J., Panoutsos,C.S., et al , Local measurements of equivalence ratio of the reacting mixture in a model gas turbine combustor, Proceedings 2nd international conference on industrial gas turbine technologies, Bled, Slovenia, 29 - 30 April 2004, 2004
• Hardalupas,Y., Taylor,A.M.K.P., Zarogoulidis,K., Sizing spheroidal droplets by ILIDS (paper 66), Proceedings of the 7th international congress on optical particle characterisation, Kyoto, Japan, 1 - 5 August 2004, 2004