SY

Songzhi Yang

Research engineer in Bureau Veritas
14
Documents

Présentation

My research primarily focuses on multiphase flow and heat transfer, encompassing a diverse range of topics within these domains. Specifically, my work has addressed subjects such as multiphase flow dynamics, phase change phenomena, and heat transfer mechanisms. For example, I have investigated diesel injection under subcritical and supercritical conditions, cavitating flows, natural convection at high Rayleigh numbers, boundary layer flow physics. Previous work at IRSN focused on the uncertainty quantification and sensitivity studies in pollutant dispersion within near-source fields. Currently, i am working on the simulation of safety in the energy field, for example the simulation of LNG, LH2 leakage, etc.

Domaines de recherche

Mécanique des fluides [physics.class-ph] Ingénierie de l'environnement Sciences de l'ingénieur [physics]

Compétences

Numerical simulation CFD Multiphase flow Natural convection thermodynamics Atmospheric dispersion simulation Data analysis Uncertainty quantification

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Publications

Numerical assessment of Gaussian models for atmospheric dispersion near urban environments in emergency situations

Erwan Rondeaux , Songzhi Yang , Irène Korsakissok , Olivier Connan , Philippe Laguionie et al.

ERPW25 - European Radiation Protection Week - 11th NERIS workshop 2025, NERIS, Sep 2025, Londres, United Kingdom

Communication dans un congrès hal-05295361v1

Comparison of atmospheric dispersion simulations with Lagrangian model and CFD methods, against a full-scale atmospheric tracer measurement in the near field (<200m)

Songzhi Yang , Fabien Duval , Irène Korsakissok

EGU General Assembly 2025, European Geosciences Union, Apr 2025, Vienne (Austria), Austria

Communication dans un congrès hal-05080493v1
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Near-field (R<200m) atmospheric dispersion simulation and sensitivity analysis following a full scale atmospheric tracer experiment

Songzhi Yang , Irène Korsakissok , Philippe Laguionie , P. Volta

HARMO22 - 22nd International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes, Prof. Marko Kaasik, Institute of Physics, University of Tartu, Estonia, Jun 2024, Pärnu, Estonia

Communication dans un congrès hal-04753040v1
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LES of natural convection along the vertical wall applied for the scale of small modular reactor ($Ra^* \approx 10^{19}$)

Songzhi Yang , Ulrich Bieder

ATH 2022 - Advances in Thermal Hydraulics, Jun 2022, Anaheim, United States. pp.311-314, ⟨10.13182/T126-38110⟩

Communication dans un congrès cea-04428811v1
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On understanding the transition from internal to external flash boiling

Songzhi Yang , Yanfei Li , Jingyu Zhang , Zijie Zhao , Shijin Shuai

ICLASS Edinburgh 2021, University of Edinburgh, Aug 2021, Edinburgh & Online, United Kingdom. ⟨10.2218/iclass.2021.6102⟩

Communication dans un congrès hal-04854678v1
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Near-field atmospheric dispersion simulation and global sensitivity analysis: comparisons to a full-scale atmospheric tracer experiment in a peri-urban area

Songzhi Yang , Irène Korsakissok , Erwan Rondeaux , P. Volta

Air Quality, Atmosphere & Health, 2025, 18, pp.Pages 3825-3841. ⟨10.1007/s11869-025-01799-0⟩

Article dans une revue hal-05257777v1

3D LES of natural convection in the side-heated vertical wall with cryogenic helium up to $Ra \approx 10^{15}$

Songzhi Yang , R. Nop , Alain Girard , Davide Duri , Etienne Studer

Progress in Nuclear Energy, 2024, 170, pp.105115. ⟨10.1016/j.pnucene.2024.105115⟩

Article dans une revue cea-04848393v1
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LES of natural convection along a side-heated vertical wall in a water cavity applied for the scale of Small Modular Reactor ($Ra \approx 10^{15}$)

Songzhi Yang , Ulrich Bieder , Etienne Studer

Nuclear Engineering and Design, 2023, 414, pp.112543. ⟨10.1016/j.nucengdes.2023.112543⟩

Article dans une revue cea-04466640v1
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Using of large eddy simulation model for a spatially developing turbulent natural convection boundary layer in water along a side-heated vertical wall with high Rayleigh number ($Ra^* ≈ 8 \times 10^{14}$)

Songzhi Yang , Ulrich Bieder

International Journal of Thermal Sciences, 2023, 187, pp.108167. ⟨10.1016/j.ijthermalsci.2023.108167⟩

Article dans une revue cea-04412630v1
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Real-fluid phase transition in cavitation modelling considering dissolved non-condensable gas

Songzhi Yang , Chaouki Habchi

Physics of Fluids, 2020, 32 (3), pp.032102. ⟨10.1063/1.5140981⟩

Article dans une revue hal-02553374v1
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Real-fluid injection modeling and LES simulation of the ECN Spray A injector using a fully compressible two-phase flow approach

Songzhi Yang , Ping Yi , Chaouki Habchi

International Journal of Multiphase Flow, 2020, 122, pp.103145. ⟨10.1016/j.ijmultiphaseflow.2019.103145⟩

Article dans une revue hal-02447336v1
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A multicomponent real-fluid fully compressible four-equation model for two-phase flow with phase change

Ping Yi , Songzhi Yang , Chaouki Habchi , Rafael Lugo

Physics of Fluids, 2019, 31 (2), pp.026102. ⟨10.1063/1.5065781⟩

Article dans une revue hal-02061996v1
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Modeling of Diesel injection in subcritical and supercritical conditions

Songzhi Yang

Fluids mechanics [physics.class-ph]. Université Paris Saclay (COmUE), 2019. English. ⟨NNT : 2019SACLC045⟩

Thèse tel-02296577v1