> Research interest

 Exploring the dam-break flow of sedimenting suspensions (lahars, submarine avalanches, pyroclastic flows).  

             * Co-workers : 

              - Frédéric Risso (DR-CNRS, Physicist at IMFT, Toulouse).

              - Stéphane Bonelli (DR-INRAe, Geomechanics at RECOVER, Le Tholonet).

              - François James (PrU Mathematician at IDP, Orléans).

              - Andrea Bondesan (Marie-Curie Fellow, Mathematician at UNIPR, Parma).

              - Carine Lucas (McF Mathematician at IDP, Orléans).

              - Olivier Delestre (McF Mathematician at LJAD, Nice). 

              - Edouardo Fogueng-Wafo (PhD Candidate in Geophysics at INRAe - Master at Univ. of Grenoble).

              - Ibrahim Hmamou (PhD Candidate in Mathematics at IDP - Master at Univ. of Montpellier).

              - Naïm Chaouch (PhD Candidate in Geomechanics at INRAe - Engineer at INRAe, Le Tholonet).

              - Loïc Rousseau (PhD Candidate in Geophysics at GéHCO - Master at University of Côte d'Azur).

              - Ahmad Amin (PhD Thesis in Physics at GéHCO - Master at University of Grenoble).

              - Romain Morini (Research Engineer at GéHCO - Doctor in Physics, LPMC, Nice).

              - Florian Godet (Research Engineer at GéHCO - Engineer in Physics, Polytech' Marseille).  

              - 2020-2022 : Transversal Project from UT - Co-Investigator with Mathilde Graslepois (6 k€)

              - 2019-2022 : Regional Fundamental Project - Co-Investigator with François James (90 k€)

              - 2018-2021 : Ministerial PhD Funding - Principal Investigator, with Florentina Moatar (96 k€)

              - 2017-2020 : Regional Fundamental Project - Principal Investigator (110 k€)

              - 2016 : FEDER-AELB Project - Principal Investigator (105 k€)

• L. Rousseau, L. Girolami, M. Boussafir, F. Risso (2025) Surface oscillations of a liquid-solid fluidized bed, Physical Review Fluids, accepted.  
• Z. Deng, L. Girolami, N. Benahmed, P. Philippe, S. Bonelli, G. Wang (2025) Advancing internal ero-sion analysis through three-dimensional FEM simulation: insights from the Agly river dike, Computer & Geotechnics,  doi:10.1016/J.compgeo.2025.107850. 
• L. Girolami (2025) Sedimentation and erosion of fluid-solid systems, Habilitation à Diriger des Recherches, University of Tours, ⟨tel-05249101⟩.
• L. Girolami, S. Bonelli, J.-M. Carozza, E. Fogueng-Wafo, J. Burgat, N. Chaouch, R. Valois (2025) On the origin and ditribution of internal erosion signatures in the floodplain protected by river dikes, Journal of Flood Risk Management, doi:10.1111/jfr3.70104. 
• Z. Deng, N. Benahmed, L. Girolami, P. Philippe, S. Bonelli, G. Wang (2025), Numerical investigation of internal erosion mechanisms regarding stratigraphy : Agly dike case study, Engineering Geology, 353 (108118),  doi:10.1016/j.enggeo.2025.108118. 
• S. Bonelli, L. Girolami (2025) Internal erosion of sandy-gravels and occurence of open-framework gravels in the sub-soils of a river dike, Geomechanics for Energy and Environment, 100690, doi:10.1016/j.gete.2025.100690. 
• A. Bondesan, L. Girolami, F. James, L. Rousseau (2025) A three-layer model for the dam-break flow of particulate suspensions driven by sedimentation, Physics of Fluids, 37(4), doi:10.1063/5.0261889.
• L. Girolami, F. Risso, A. Amin, L. Rousseau, A. Bondesan, S. Bonelli (2024) Sedimentation of short-lived fluid-solid suspensions, Physics of Fluids, 36, 113308, doi:10.1063/5.0231788. 
• L. Girolami, S. Bonelli, R. Valois, N. Chaouch, J. Burgat (2023) On internal erosion of the pervious foundation of flood protection dikes, Water, 15, 3747, doi:10.3390/w15213747.
• A. Amin, L. Girolami, F. Risso (2022) Fall of a large sphere in a suspension of small fluidized particles, Physical Review Fluids Letters, 7, L082301. 
• A. Amin, L. Girolami, F. Risso (2021) On the fluidization/sedimentation velocity of a homogeneous suspension in a low-inertia fluid, Powder Technology, 391, doi.org/10.1016/j.powtec.2021.05.073. 
• C. Soulaine, L. Girolami, L. Arbaret, S. Roman (2021) Digital Rock Physics: computation of hydrodynamic dispersion, Oil Gas Sciences & Technology, 76 (51), doi.org/10.2516/ogst/2021032. 
• L. Girolami, F. Risso (2020) Physical modeling of the dam-break flow of sedimenting suspensions, Physical Review Fluids, 5, 084306, doi:10.1103/PhysRevFluids.5.084306. 

• L. Girolami, F. Risso (2019) Sedimentation of gas-fluidized particles with random shape and size, Physical Review Fluids, 4, 074301, doi:10.1103/PhysRevFluids.4.074301. 

• L. Girolami, F. Risso (2018) Rheological behaviour and runout of short-lived fast-moving flows of hot, dense suspensions, Journal of Energy Challenges and Mechanics, 5(1), 17-23. 

• L. Girolami, J. D. Sherwood and F. Charru (2016) Dynamics of a slowly-varying sand bed in a circular pipe, International Journal of Multiphase Flows, 81, 113-129.

• L. Girolami, T. H. Druitt and O. Roche (2015) Towards a quantitative understanding of pyroclastic flows : Effects of expansion on the dynamics of laboratory fluidized granular flows, JVGR, 296, 31-39.

• G. F. Bertrand, H. Celle-Jeanton, F. Huneau, A. Baillieux, G. Mauri, V. Lavastre, G. Undereiner, L. Girolami and J.S. Moquet (2015) Vulnerability of volcanic aquifers : evaluation of contaminant transfer and hydrodispersive parameters in basaltic lava flows through an artificial tracer test and implications for long-term water supply management, Open Geosciences, doi:10.1515/geo-2015-0037.

• L. Girolami, A. Wachs and G. Vinay (2013) Unchannelized dam-break flows : effects of the lateral spreading on the flow dynamics, Physics of Fluids, 25, doi:10.1063/1.4799 129.

• A. Wachs, L. Girolami, G. Vinay and G. Ferrer (2012) GRAINS3D, a flexible DEM approach for particles of arbitrary convex shape : numerical model and validations, Powder Technology, doi :10.1016/j.powtec.2012.03.023.

• L. Girolami, V. Hergault, G. Vinay and A. Wachs (2012) A Three-dimensional DEM for the simulation of dam-break granular collapses : comparison between numerical results and experiments, Granular Matter, doi:10.1007/s10035-012-0342-3.

• L. Girolami, O. Roche, T. H. Druitt and T. Corpetti (2010) Particle velocity fields and depositional processes in laboratory ash flows, with implications for the sedimentation of dense pyroclastic flows, Bulletin of Volcanology, doi:10.1007/s00445-010-0356-9.

• A. Wachs, G. Vinay, G. Ferrer, J. Kouakou, C. Dan and L. Girolami (2009) PeliGRIFF : a parallel Discrete Element Method-Distributed Lagrange Multiplier/ Fictitious Domain for a direct numerical simulation of particulate flows with collisions, International Journal of Mechanical Systems Science and Engineering, 1 (4), 185-191.

• L. Girolami, T. H. Druitt, O. Roche and Z. Khrabrykh (2008) Transport and hindered settling of laboratory ash flows, Journal of Geophysical Research, 113, doi:10.1029/ 2007JB005074.