S. Giannissi

Most-cited papers

1. CFD modeling of hydrogen dispersion under cryogenic release conditions

   S. Giannissi, A. Venetsanos, N. Markatos, J. Bartzis

   201498 citations

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2. Best practice guidelines in numerical simulations and CFD benchmarking for hydrogen safety applications

   I. Tolias, S. Giannissi, A. Venetsanos, J. Keenan +12 more

   2018International journal of hydrogen energy87 citations Open access

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3. Study of key parameters in modeling liquid hydrogen release and dispersion in open environment

   S. Giannissi, A. Venetsanos

   201883 citations

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4. CFD benchmark on hydrogen release and dispersion in confined, naturally ventilated space with one vent

   S. Giannissi, V. Shentsov, D. Melideo, B. Cariteau +3 more

   201567 citations

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5. Development of a model evaluation protocol for CFD analysis of hydrogen safety issues the SUSANA project

   D. Baraldi, D. Melideo, A. Kotchourko, Ke Ren +11 more

   201763 citations Open access

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6. Release and dispersion modeling of cryogenic under-expanded hydrogen jets

   A. Venetsanos, S. Giannissi

   201746 citations

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7. CFD benchmark on hydrogen release and dispersion in a ventilated enclosure: Passive ventilation and the role of an external wind

   S. Giannissi, J. Hoyes, B. Chernyavskiy, P. Hooker +3 more

   201546 citations

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8. Numerical simulation of LNG dispersion under two-phase release conditions

   S. Giannissi, A. Venetsanos, N. Markatos, J. Bartzis

   201342 citations

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9. A CFD Analysis of Liquefied Gas Vessel Explosions

   F. Ustolin, I. Tolias, S. Giannissi, A. Venetsanos +1 more

   2021Chemical engineering research & design41 citations Open access

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10. On the CFD modelling of hydrogen dispersion at low-Reynolds number release in closed facility

    S. Giannissi, I. Tolias, D. Melideo, Daniele Baraldi +4 more

    2020International journal of hydrogen energy40 citations Open access

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11. A comparative CFD assessment study of cryogenic hydrogen and LNG dispersion

    S. Giannissi, A. Venetsanos

    2018International journal of hydrogen energy37 citations

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12. Prediction of the wind speed probabilities in the atmospheric surface layer

    G. Efthimiou, Pramod Kumar, S. Giannissi, A. Feiz +1 more

    2019Renewable Energy25 citations Open access

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13. The evolution and structure of ignited high-pressure cryogenic hydrogen jets

    Zhao-Xin Ren, S. Giannissi, A. Venetsanos, A. Friedrich +3 more

    2022International journal of hydrogen energy23 citations Open access

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14. Active trading and regulatory incentives lower the levelized cost of green hydrogen in Greece

    Giannis Georgopoulos, Panagiotis Papadopoulos, Georgios Mitkidis, S. Giannissi

    2025Communications Earth & Environment15 citations Open access

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15. RES-electrolyser coupling within TRIERES hydrogen valley – A flexible technoeconomic assessment tool

    Nikolaos Skordoulias, S. Karellas, Dimitrios V. Lyridis, S. Giannissi +1 more

    2025Energy Conversion and Management15 citations Open access

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16. Mitigation of buoyant gas releases in single-vented enclosure exposed to wind: Removing the disrupting wind effect

    S. Giannissi, I. Tolias, A. Venetsanos

    201612 citations

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17. Numerical Investigation of Hydrogen Jet Dispersion Below and Around a Car in a Tunnel

    N. Koutsourakis, I. Tolias, S. Giannissi, A. Venetsanos

    2023Energies11 citations Open access

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18. Modeling and simulation supporting the application of fuel cell & hydrogen technologies

    E. Stamatakis, A. Yiotis, S. Giannissi, I. Tolias +1 more

    2018Journal of Computer Science10 citations

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19. CFD Modeling of LNG Spill: Humidity Effect on Vapor Dispersion

    S. Giannissi, A. Venetsanos, N. Markatos

    20157 citations Open access

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20. CRYOGENIC AND AMBIENT GASEOUS HYDROGEN BLOWDOWN WITH DISCHARGE LINE EFFECTS

    Venetsanos, S. Giannissi, I. Tolias, Mike Kuznetsov

    20215 citations

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21. CFD simulations of large scale LH2 dispersion in open environment

    S. Giannissi, A. Venetsanos, E. Vyazmina, S. Jallais +2 more

    20214 citations

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22. MODELLING OF VENTILATED HYDROGEN DISPERSION IN PRESENCE OF CO-FLOW AND COUNTER-FLOW

    S. Giannissi, I. Tolias, H. Abbasi, D. Makarov +2 more

    20213 citations

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23. Simulation of Hydrogen Dispersion under Cryogenic Release Conditions

    S. Giannissi, A. Venetsanos, N. Markatos, D. Willoughby +1 more

    20133 citations

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24. ENHANCING SAFETY OF LIQUID AND VAPORISED HYDROGEN TRANSFER TECHNOLOGIES IN PUBLIC AREAS FOR MOBILE APPLICATIONS

    F. Ustolin, D. Cirrone, V. Molkov, D. Makarov +9 more

    3 citations

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25. Intercomparison between LH2, LNG and pressurized NH3 dispersion using an adiabatic mixing approach

    A. Venetsanos, G. Boulougouris, S. Giannissi, Th. Krassa +2 more

    2021International journal of hydrogen energy2 citations

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26. A model evaluation protocol for Computational Fluid Dynamics (CFD) models used in safety analyses for hydrogen and fuel cell technologies

    S. Coldrick, A. Kelsey, B. Chernyavskiy, D. Makarov +6 more

    20152 citations

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27. CFD DISPERSION SIMULATIONS OF COMPRESSED HYDROGEN RELEASES THROUGH TPRD INSIDE SCALED TUNNEL

    S. Giannissi, A. Venetsanos, W. Rattigan, K. Lyons

    2 citations

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28. OVERVIEW OF FIRST OUTCOMES OF PNR PROJECT HYTUNNEL-CS

    D. Makarov, D. Cirrone, V. Shentsov, S. Kashkarov +30 more

    20211 citations

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29. CFD VALIDATION AGAINST LARGE SCALE LIQUEFIED HELIUM RELEASE

    A. Venetsanos, S. Giannissi, C. Proust

    20191 citations

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30. SUpport to SAfety ANalysis of Hydrogen and Fuel Cell Technologies Critical Analysis and Requirements to Physical and Mathematical Models

    Ke Ren, A. Kotchourko, V. Shentsov, D. Makarov +10 more

    20161 citations

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31. HYMEP the Model Evaluation Protocol for CFD analysis of hydrogen safety issues

    D. Baraldi, D. Melideo, A. Kotchourko, Ke Ren +12 more

    20161 citations

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32. Dynamic optimisation of alkaline electrolyser operation under virtual solar and hybrid solar-wind PPAs – A multi-state MINLP framework applied to the TRIERES hydrogen valley project

    Nikolaos Skordoulias, S. Karellas, Dimitris Lyridis, S. Giannissi +1 more

    2026International journal of hydrogen energy0 citations Open access

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33. Navigating the Hydrogen Transition in Petroleum Refining: A Comprehensive Market Assessment

    C. Karakosta, Giuseppe Minafra, Luca Bardoscia, Myrto Xynogala +2 more

    2025LIMEN - International Scientific-Business Conference - Leadership, Innovation, Management and Economics: Integrated Politics of Research0 citations Open access

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34. CFD modelling of large scale liquid hydrogen experiments indoors and outdoors

    S. Giannissi, A. Venetsanos

    0 citations

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35. SIMULATIONS OF HYDROGEN DISPERSION FROM FUEL CELL VEHICLES’ LEAKAGES INSIDE FULL-SCALE TUNNEL

    N. Koutsourakis, S. Giannissi, I. Tolias, A. Venetsanos +2 more

    0 citations

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