Centrale Lille Research Directory
I have been a Reader in Centrale Lille Institut since September 2025, before that, I was a lecturer in Centrale Lille (2020 - 2025). I am affiliated to the Laboratoire de Mécanique des Fluides de Lille. I teach fluid dynamics in the main engineering curriculum of Ecole Centrale de Lille and numerical analysis in the internationnal master of turbulence. I also taught fluid mechanics punctually (2023 - 2025) in the second year of the undergraduate program of école de chimie de Lille.
I mostly study rare and extreme events in turbulent flows, in particular in multistable flows of géophysique and aerodynamical origin. These flows are often facing "typing points" under various changes in the system (internal noise, modification of conditions), which are the focus of our research. For that purpose, I have implemented a suite of code of rare event simulation methods that can drastically accelerate those numerical simulations and critically improve the estimate of the probability of occurence of these events.
- Fluid dynamics (geophysics, wall bounded flows, wakes)
- Rare events simulation methods
- Stochastic processes
Characterisation of a multistable turbulent wake: application of an improved regime identification with analytical model training
2026
Ariane Barlet,Pierre Bragança,Christophe Cuvier,Joran Rolland
Eulerian-Lagrangian scaling of the Lyapunov exponent in homogeneous turbulence
Physical Review Fluids, 2025, ⟨10.1103/zv93-zkkv⟩
Jin Ge,Joran Rolland,John Christos Vassilicos
The interscale behaviour of uncertainty in three-dimensional Navier-Stokes turbulence
Journal of Fluid Mechanics, In press
Jin Ge,Joran Rolland,John Christos Vassilicos
Does rare, noise-induced, bypass transition in plane Couette flow bypass instantons ?
2024
Joran Rolland
The production of uncertainty in three-dimensional Navier-Stokes turbulence
Journal of Fluid Mechanics, 2023, 977 (A17)
Jin Ge,Joran Rolland,John-Christos Vassilicos
Rare events and waves in models and turbulent flows
Mechanics [physics]. Université de Lille, 2022
Joran Rolland
Coupling rare event algorithms with data-based learned committor functions using the analogue Markov chain
Journal of Statistical Mechanics: Theory and Experiment, 2022, 2022, pp.083201. ⟨10.1088/1742-5468/ac7aa7⟩
Dario Lucente,Joran Rolland,Corentin Herbert,Freddy Bouchet
Collapse of transitional wall turbulence captured using a rare events algorithm
Journal of Fluid Mechanics, 2022, 931, pp.A22. ⟨10.1017/jfm.2021.957⟩
Joran Rolland
Instantons and the path to intermittency in turbulent flows
Physical Review Letters, 2022, 129, pp.034502. ⟨10.1103/PhysRevLett.129.034502⟩
André Fuchs,Corentin Herbert,Joran Rolland,Matthias Wächter,Freddy Bouchet,Joachim Peinke
Multistability and rare spontaneous transitions in barotropic β-plane turbulence
Journal of the Atmospheric Sciences, 2021, ⟨10.1175/JAS-D-20-0279.1⟩
Eric Simonnet,Joran Rolland,Freddy Bouchet
MACHINE LEARNING OF COMMITTOR FUNCTIONS FOR PREDICTING HIGH IMPACT CLIMATE EVENTS
Climate Informatics, Oct 2019, Paris, France
Dario Lucente,Stefan Duffner,Corentin Herbert,Joran Rolland,Freddy Bouchet
A rare event algorithm links transitions in turbulent flows with activated nucleations
Physical Review Letters, 2019, 122, pp.074502. ⟨10.1103/PhysRevLett.122.074502⟩
Freddy Bouchet,Joran Rolland,Eric Simonnet
Extremely rare collapse and build-up of turbulence in stochastic models of transitional wall flows
Physical Review E , 2018, 97 (1), pp.023109. ⟨10.1103/PhysRevE.97.023109⟩
Joran Rolland
Finite size analysis of a double crossover in transitional wall turbulence
Journal of Statistical Mechanics: Theory and Experiment, 2018, 2018 (9), pp.093207. ⟨10.1088/1742-5468/aaddab⟩
Joran Rolland
Mechanical and statistical study of the laminar hole formation in transitional plane Couette flow
The European Physical Journal B: Condensed Matter and Complex Systems, 2015, 88 (3), pp.66. ⟨10.1140/epjb/e2015-50344-y⟩
Joran Rolland
Stochastic analysis of the time evolution of laminar-turbulent bands of plane Couette flow.
European Physical Journal E: Soft matter and biological physics, 2015, 38 (11), pp.121. ⟨10.1140/epje/i2015-15121-5⟩
Joran Rolland
Computing transition rates for the 1-D stochastic Ginzburg–Landau–Allen–Cahn equation for finite-amplitude noise with a rare event algorithm
Journal of Statistical Physics, 2015, ⟨10.1007/s10955-015-1417-4⟩
Joran Rolland,Freddy Bouchet,Eric Simonnet
Turbulent spot growth in plane Couette flow: statistical study and formation of spanwise vorticity
Fluid Dynamics Research, 2014, 46 (1), ⟨10.1088/0169-5983/46/1/015512⟩
Joran Rolland
Formation of spanwise vorticy in oblique turbulent bands of transitional plane Couette flow, part 1: Numerical experiments
European Journal of Mechanics - B/Fluids, 2014, 50C, pp.52. ⟨10.1016/j.euromechflu.2014.11.007⟩
Joran Rolland
Etude numérique à petite et grande échelle de la bande laminaire-turbulente de l'écoulement de Couette plan transitionnel
Dynamique des Fluides [physics.flu-dyn]. Ecole Polytechnique X, 2012. Français. ⟨NNT : ⟩
Joran Rolland
Turbulent pattern formation in plane Couette flow: Modelling and investigation of mechanisms
13th European Turbulence Conference (ETC13), Sep 2011, Warsaw, Poland. pp.032034, ⟨10.1088/1742-6596/318/3/032034⟩
Joran Rolland,Paul Manneville
On modelling transitional turbulent flows using under-resolved direct numerical simulations: the case of plane Couette flow
Theoretical and Computational Fluid Dynamics, 2011, 25 (6), pp.407-420. ⟨10.1007/s00162-010-0215-5⟩
Paul Manneville,Joran Rolland
Ginzburg-Landau description of laminar-turbulent oblique band formation in transitional plane Couette flow
The European Physical Journal B: Condensed Matter and Complex Systems, 2011, 80 (4), pp.529-544. ⟨10.1140/epjb/e2011-10730-1⟩
Joran Rolland,Paul Manneville
Pattern Fluctuations in Transitional Plane Couette Flow
Journal of Statistical Physics, 2011, 142 (3), pp.577-591. ⟨10.1007/s10955-011-0126-x⟩
Joran Rolland,Paul Manneville
- Transition and instability in fluid mechanics
- Rare and extreme events in turbulent flows
- Elected member of section 12 of the national comitee of CNRS 2025 - 2029 (recruitement of researchers, promotions, career monitoring)
- Head of the international master of turbulence
- Member of the board of the mechanics domain of ENGSYS graduate school (yearly PhD comitees for students of LMFL)