Mechanical modeling of tissue morphogenesis

• Marangoni-like tissue flows enhance symmetry breaking of embryonic organoids
  S. Gsell*, S. Tlili*, M. Merkel and P.-F. Lenne, 2025, Nature Physics, ⟨hal-04251716⟩
  – featured in “Nature Physics News & Views“
  – featured in “CNRS Biologie news“
  – featured in “Quanta Magazine”
  
• Phase separation dynamics in deformable droplets
  S. Gsell and M. Merkel, 2022, Soft Matter, ⟨hal-03507926⟩,
  – featured in “Soft Matter Editorial Board Highlights of 2022“

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Pilot-wave dynamics of active particles in stratified fluids

• Pilot-wave hydrodynamics of a particle in a density-stratified fluid
  S. Gsell and P. Le Gal, 2025, Physical Review Fluids, ⟨hal-05309699⟩

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Physics-informed neural networks for mechanical modeling

• Inferring viscoplastic models from velocity fields: a physics-informed neural network approach
  M. Lardy, S. Tlili and S. Gsell, 2025, Journal of Non-Newtonian Fluid Mechanics

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Hydrodynamics of active cilia and mucus clearance

• Pulsated Herschel-Bulkley flows in two-dimensional channels: A model for mucus clearance devices
  A. Galko, S. Gsell, U. D’Ortona and J. Favier, 2022, Physical Review Fluids, ⟨hal-03863329⟩
  
• Longitudinal to Transverse Metachronal Wave Transitions in an In Vitro Model of Ciliated Bronchial Epithelium
  O. Mesdjian, C. Wang, S. Gsell, U. D’Ortona, J. Favier. A. Viallat, 2022, Physical Review Letters,  ⟨hal-03741505⟩
  
• Active mucus-cilia hydrodynamic coupling drives the self-organisation of human bronchial epithelium SMASH
  E. Loiseau, S. Gsell, A. Nommick, C. Jomard, D. Gras, P. Chanez, U. D’Ortona, L. Kodjabachian, J. Favier and A. Viallat, , 2020, Nature Physics, ⟨hal-02914172⟩
  
• Hydrodynamic model of directional ciliary-beat organization in human airways
  S. Gsell, E. Loiseau, , U. D’Ortona, A. Viallat and J. Favier, 2020, Scientific Reports, ⟨hal-02614711⟩

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Immersed-boundary method

• Direct-forcing immersed-boundary method: A simple correction preventing boundary slip error
  S. Gsell and J. Favier, 2021, Journal of Computational Physics, ⟨hal-03425864⟩
  
• Explicit and viscosity-independent immersed-boundary scheme for the lattice Boltzmann method
  S. Gsell, U. D’Ortona and J. Favier, 2020, Physical Review E, ⟨hal-02339475⟩

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Lattice-Boltzmann method

• Lattice-Boltzmann simulation of creeping generalized Newtonian flows: Theory and guidelines
  S. Gsell, U. D’Ortona and J. Favier, 2021, Journal of Computational Physics, ⟨hal-03166492⟩
• Multigrid dual-time-stepping lattice Boltzmann method
  S. Gsell, U. D’Ortona and J. Favier, 2020, Physical Review E, ⟨hal-02573156⟩

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Flow-induced vibrations

• One- versus two-degree-of-freedom vortex-induced vibrations of a circular cylinder at Re = 3900
  S. Gsell, R. Bourguet and M. Braza, 2019, Journal of Fluids and Structures, ⟨hal-02062155⟩
• Three-dimensional flow past a fixed or freely vibrating cylinder
  S. Gsell, R. Bourguet and M. Braza, 2018, Physical Review Fluids,  ⟨hal-01681823⟩
• Vortex-induced vibrations of a cylinder in planar shear flow
  S. Gsell, R. Bourguet and M. Braza, 2017, Journal of Fluid Mechanics, ⟨hal-01581414⟩
• Two-degree-of-freedom vortex-induced vibrations of a circular cylinder at Re=3900
  S. Gsell, R. Bourguet and M. Braza, 2016, Journal of Fluids and Structures, ⟨hal-01382471⟩

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Coastal waves

• A coupled volume-of-fluid/immersed-boundary method for the study of propagating waves over complex-shaped bottom: Application to the solitary wave
  S. Gsell, T. Bonometti and D. Astruc, Computers & Fluids, ⟨hal-01293270⟩