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Cyrille Bonamy



EXPERT IN SCIENTIFIC COMPUTING### AN EXCITING AND VARIED JOB I am an expert in scientific computing at the [LEGI]( laboratory after a thesis in fluid mechanics at the [PPRIME]( institute and a first permanent position as a research engineer at [the University of Lille]( as head of the [computing division of the IT System Department]( In the LEGI laboratory, my activity is mainly "research", and concerns two main themes: sediment transport, and rotating machinery. I co-supervise several theses since 2016 (four theses defended, three in progress), I am the referent for the development and data analysis thema. I also use my skills in computer science to disseminate and enhance our codes and data and I participate in the transfer of knowledge either through oral communications, scientific articles or through vacations at the engineering school [ENSE3-GINP]( A common feature of these activities is the use and development of the opensource toolkit [OpenFOAM]( In particular, I am the maintainer and software manager of the [sedFoam]( solver, which will soon be integrated into the official OpenFoam distribution. More generally, I encourage and support the use and development of this tool, both within the laboratory and outside. In particular, I am a member of the [Foam-U]( Board of Directors, and main animator of the regional network of OpenFOAM users. I am the referent of the laboratory for all that concerns the development, the use and the optimisation of high performance computing codes (proprietary, community or in-house). I guide and support users according to their needs towards the appropriate solutions in terms of infrastructure : local (laboratory cluster), regional ([GRICAD](, national ([GENCI](, computing grids ([EGI](, [Grid5000](, bigdata environements (Storm). Finally, I encourage, train and sensitise PhD students, engineers and researchers to use Python for experimental data processing and for pre and post processing of numerical data. In addition, I am very interested in environmental issues; in the past, I have instilled a dynamic around environmental aspects in the IT department of the [University of Lille]( (setting up a cold corridor, encouraging mutualisation and rationalisation, etc.). Since my arrival at the LEGI laboratory, I have been an active member of the CNRS [EcoInfo]( Service Group (GDS) and I am particularly interested in the ecodesign of digital services (software consumption in the usage phase, Life Cycle Analysis of a digital service...).


A frictional–collisional model for bedload transport based on kinetic theory of granular flows: discrete and continuum approaches

Rémi Chassagne , Cyrille Bonamy , Julien Chauchat
Journal of Fluid Mechanics, 2023, 964, pp.A27. ⟨10.1017/jfm.2023.335⟩
Journal articles hal-04223618v1

Numerical investigation of mode failures in submerged granular columns

E.P. Montellà , J. Chauchat , C. Bonamy , D. Weij , G.H. Keetels
Flow Measurement and Instrumentation, 2023, 3, pp.E28. ⟨10.1017/flo.2023.23⟩
Journal articles hal-04243099v1
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Bonnes pratiques en écoconception de service numérique

Cyrille Bonamy , Cedric Boudinet , Laurent Bourges , Karin Dassas , Laurent Lefèvre
Collection numérique de l’AMUE, Agence de mutualisation des universités et établissements d'enseignement supérieur, 2023, 29, pp.2
Journal articles hal-04402624v1
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L'écoconception d'un service numérique : des actions pour réduire l'impact environnemental du numérique

Cyrille Bonamy , Cédric Boudinet , Laurent Bourgès , Karin Dassas , Laurent Lefèvre
1024 : Bulletin de la Société Informatique de France, 2022, 19, pp.59-68. ⟨10.48556/SIF.1024.19.59⟩
Journal articles hal-03660118v1

A finite-size correction model for two-fluid large-eddy simulation of particle-laden boundary layer flow

Antoine Mathieu , Julien Chauchat , Cyrille Bonamy , Guillaume Balarac , Tian-Jian Hsu
Journal of Fluid Mechanics, 2021, 913, ⟨10.1017/jfm.2021.4⟩
Journal articles hal-03158689v1
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Passive flow control mechanisms with bioinspired flexible blades in cross-flow tidal turbines

Stefan Hoerner , Shokoofeh Abbaszadeh , Olivier Cleynen , Cyrille Bonamy , Thierry Maître
Experiments in Fluids, 2021, 62 (5), ⟨10.1007/s00348-021-03186-8⟩
Journal articles hal-03221487v1
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Three-dimensional scour simulations with a two-phase flow model

Tim Nagel , Julien Chauchat , Cyrille Bonamy , Xiaofeng Liu , Zhen Cheng
Advances in Water Resources, 2020, 138, pp.103544. ⟨10.1016/j.advwatres.2020.103544⟩
Journal articles hal-02500524v1
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Darrieus vertical-axis water turbines: deformation and force measurements on bioinspired highly flexible blade profiles

Stefan Hoerner , Cyrille Bonamy , Olivier Cleynen , Thierry Maître , Dominique Thevenin
Experiments in Fluids, 2020, 61, ⟨10.1007/s00348-020-02970-2⟩
Journal articles hal-02750344v1
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FluidSim: Modular, Object-Oriented Python Package for High-Performance CFD Simulations

Ashwin Vishnu Mohanan , Cyrille Bonamy , Miguel Calpe Linares , Pierre Augier
Journal of Open Research Software, 2019, 7, ⟨10.5334/jors.239⟩
Journal articles hal-02121919v1
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FluidFFT: Common API (C++ and Python) for Fast Fourier Transform HPC Libraries

Ashwin Vishnu Mohanan , Cyrille Bonamy , Pierre Augier
Journal of Open Research Software, 2019, 7, ⟨10.5334/jors.238⟩
Journal articles hal-02088659v1
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Structured-light-based surface measuring for application in fluid–structure interaction

Stefan Hoerner , Cyrille Bonamy
Experiments in Fluids, 2019, 60 (11), pp.168. ⟨10.1007/s00348-019-2821-3⟩
Journal articles hal-02338663v1
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FluidDyn: A Python Open-Source Framework for Research and Teaching in Fluid Dynamics by Simulations, Experiments and Data Processing

Pierre Augier , Ashwin Vishnu Mohanan , Cyrille Bonamy
Journal of Open Research Software, 2019, 7, ⟨10.5334/jors.237⟩
Journal articles hal-02088650v1

Two-Phase Flow Simulation of Tunnel and Lee-Wake Erosion of Scour below a Submarine Pipeline

Antoine Mathieu , Julien Chauchat , Cyrille Bonamy , Tim Nagel
Water, 2019, 11 (8), pp.1727. ⟨10.3390/w11081727⟩
Journal articles hal-02328999v1


Tim Nagel , Julien Chauchat , Cyrille Bonamy , Antoine Mathieu , Xiaofeng Liu
Coastal Engineering Proceedings, 2018, 1 (36), pp.22. ⟨10.9753/icce.v36.sediment.22⟩
Journal articles hal-02043124v1

On the multi-scale interactions between an offshore-wind-turbine wake and the ocean-sediment dynamics in an idealized framework – A numerical investigation

Tim Nagel , Julien Chauchat , Achim Wirth , Cyrille Bonamy
Renewable Energy, 2018, 115, pp.783 - 796. ⟨10.1016/j.renene.2017.08.078⟩
Journal articles hal-01647773v1

A multi-fluid approach to simulate separation of liquid-liquid systems in a gravity settler

Anurag Misra , Cyrille Bonamy , Luís M de Souza , Lena Hohl , Markus Illner
Computer Aided Chemical Engineering, 2018, 28th European Symposium on Computer Aided Process Engineering, 43, pp.31-36. ⟨10.1016/B978-0-444-64235-6.50008-5⟩
Journal articles hal-01882786v1

SedFoam-2.0: a 3-D two-phase flow numerical model for sediment transport

Julien Chauchat , Zhen Cheng , Tim Nagel , Cyrille Bonamy , Tian-Jian Hsu
Geoscientific Model Development Discussions, 2017, 10 (12), pp.4367 - 4392. ⟨10.5194/gmd-10-4367-2017⟩
Journal articles hal-01652998v1

A comparison of data reduction techniques for the aeroacoustic analysis of flow over a blunt flat plate

Philippe Debesse , Luc Pastur , F. Lusseyran , Yann Fraigneau , C. Tenaud
Theoretical and Computational Fluid Dynamics, 2015, 30 (3), pp.253 - 274. ⟨10.1007/s00162-015-0375-4⟩
Journal articles hal-01384458v1
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The Interaction between Selection, Demography and Selfing and How It Affects Population Viability

Diala Abu Awad , Sophie Gallina , Cyrille Bonamy , Sylvain Billiard
PLoS ONE, 2014, 9, pp.e86125. ⟨10.1371/journal.pone.0086125⟩
Journal articles hal-01110797v1

Split Bregman iteration and infinity Laplacian for image decomposition

Cyrille Bonamy , Carole Le Guyader
Journal of Computational and Applied Mathematics, 2013, 240, pp.99-110. ⟨10.1016/⟩
Journal articles hal-01251045v1

Tailored nearfield Green’s functions for arbitrary geometries

Cyrille Bonamy , Peter Jordan , Yves Gervais
Journal of the Acoustical Society of America, 2010, 128 (5), ⟨10.1121/1.3365240⟩
Journal articles hal-01251056v1
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20 ans de science ouverte au laboratoire LEGI : Quels succès ? Quelles difficultés ? Quels enseignements ? Un tremplin vers le futur

Cyrille Bonamy , Gabriel Pierre André Moreau , Julien Chauchat , J. Sommeria
Congrès JRES : Les Journées Réseaux de l'Enseignement et de la Recherche, RENATER, May 2022, Marseille, France
Conference papers hal-03608867v1
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Impact des langages de programmation sur la performance énergétique des applications de calcul scientifique : un challenge ?

Cyrille Bonamy , Laurent Bourgès , Laurent Lefèvre
JRES 2022 - Journées Réseau de l’Enseignement et de la Recherche, RENATER, May 2022, Marseille, France
Conference papers hal-03607468v1
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Les impacts environnementaux et sociétaux des données : un défi pour l'avenir

Didier Mallarino , Sylvie Le Bras , Cyrille Bonamy
Congrès JRES : Les Journées Réseaux de l'Enseignement et de la Recherche, RENATER, May 2022, Marseille, France
Conference papers hal-03702208v1
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Calcul haute performance et efficacité énergétique : focus sur OpenFOAM

Cyrille Bonamy , Laurent Lefèvre , Gabriel Pierre André Moreau
Congrès JRES : Les Journées Réseaux de l'Enseignement et de la Recherche, RENATER, Dec 2019, Dijon, France. pp.1-9
Conference papers hal-02387863v1

OpenData pour la simulation et les expérimentations au LEGI

Gabriel Pierre André Moreau , Antoine Mathieu , Cyrille Bonamy , Julien Chauchat , Joël Sommeria
Interopérabilité et pérennisation des données de la recherche : comment FAIR En pratique ? Retours d’expérience, CNRS RESINFO; CNRS Groupe Calcul; CNRS Devlog; CNRS rBDD; CNRS Frantiq; CNRS MASA; CNRS Medici; CNRS Renatis; CNRS QeR, Nov 2018, Paris, France
Conference papers hal-01939712v1

Prediction of scour phenomenon around cylinder with SedFoam

Cyrille Bonamy , Tim Nagel , Antoine Mathieu , Julien Chauchat , Zhen Cheng
3rd French OpenFOAM users conference, May 2018, Valenciennes, France
Conference papers hal-02061964v1

Investigation of turbulent sheet flows under unidirectional flow forcing

Julien Chauchat , Zhen Cheng , Thibaud Revil-Baudard , Cyrille Bonamy , Tian-Jian Hsu
8th International Symposium on Environmental Hydraulics, Jun 2018, NOTRE-DAME, IN, United States
Conference papers hal-02043067v1

Fluid-structure-interaction of a flexible composite hydrofoil in forced rotational oscillation motion

Stefan Hoerner , Thierry Maître , Cyrille Bonamy , Dominique Thévenin
Proceedings of 9th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, Flow-Induced Vibration & Noise, Jul 2018, Toronto, Canada
Conference papers hal-01787154v1

Upscaling of granular processes in sediment transport : from discrete to continuous modeling.

Julien Chauchat , Raphaël Maurin , Tim Nagel , Cyrille Bonamy , Zhen Cheng
EGU 2018, Apr 2018, VIENNE, Austria
Conference papers hal-02043226v1

Application of a Eulerian two-phase flow model to scour processes

Antoine Mathieu , Tim Nagel , Cyrille Bonamy , Julien Chauchat , Zhen Cheng
River Flow 2018 - Ninth International Conference on Fluvial Hydraulics, Sep 2018, Lyon-Villeurbanne, France. ⟨10.1051/e3sconf/20184005015⟩
Conference papers hal-01882779v1


Tim Nagel , Julien Chauchat , Zhen Cheng , Cyrille Bonamy , Xiaofeng Liu
Coastal Dynamics 2017, Jun 2017, Helsingor, Denmark
Conference papers hal-02043112v1
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Strongly-coupled fluid-structure-interaction with large deformations on a flexible hydrofoil under forced oscillation

Stefan Hoerner , Cyrille Bonamy , Thierry Maître , Olivier Cleynen , Dominique Thévenin
12th OpenFoam Workshop, Jul 2017, Exeter, United Kingdom
Conference papers hal-01685286v1

sedFoam: an open-source multi-dimensional two-phase flow model for sediment transport applications

Julien Chauchat , Zhen Cheng , Tim Nagel , Cyrille Bonamy , Antoine Mathieu
Euromech Colloquium 588 Coupling Mechanisms and Multi-Scaling in Granular-Fluid Flows, Oct 2017, TOULOUSE, France
Conference papers hal-02043229v1
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sedFoam, a OpenFOAM solver for sediment transport

Cyrille Bonamy , Julien Chauchat , Zhen Cheng , Tim Nagel , Tian-Jian Hsu
12th OpenFoam Workshop, Jul 2017, Exeter, United Kingdom
Conference papers hal-01685275v1

New perspectives on particle-laden flows in complex geometries using the turbulence-averaged Eulerian two-phase flow model

Julien Chauchat , Cyrille Bonamy , Tim Nagel , Antoine Mathieu , Zhen Cheng
IUTAM/ AMERIMECH SYMPOSIUM on Dynamics of Gravity Currents, Sep 2017, SANTA BARBARA, CA, United States
Conference papers hal-02043649v1

Two-phase flow simulation of scour around a cylindrical pile

Tim Nagel , Julien Chauchat , Zhen Cheng , Xiaofeng Liu , Tian-Jian Hsu
Journées Nationales Génie Côtier - Génie Civil, Jun 2016, TOULON, France. pp.65-72
Conference papers hal-02043104v1
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Reproductive strategies, demography and mutational meltdown

Diala Abu Awad , Sophie Gallina , Cyrille Bonamy , Sylvain Billiard
journées scientifiques mésocentres et France Grilles 2012, Oct 2012, Paris, France
Conference papers hal-00766065v1
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Détection a posteriori de structure génétique des populations hiérarchisée

Maxime Pauwels , Adeline Coornaert , Sophie Gallina , Cyrille Bonamy , Jean-François Arnaud
journées scientifiques mésocentres et France Grilles 2012, Oct 2012, Paris, France
Conference papers hal-00766075v1

Time-Domain Tailored Green's Functions for Arbitrary Geometries

Cyrille Bonamy , Peter Jordan , Yves Gervais
16th AIAA/CEAS Aeroacoustics Conference, Jun 2010, Stockholm, Sweden. ⟨10.2514/6.2010-3906⟩
Conference papers hal-02061924v1

Tailored nearfield Greens functions for arbitrary geometries

Cyrille Bonamy , P. Jordan , Y. Gervais
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), Miami (Florida), may 2009, May 2009, Miami (Florida), United States. AIAA Paper AIAA-2009-3394
Conference papers hal-00460992v1

Experimental analysis of the wall aerodynamics and acoustic radiation of the trailing edge of an airfoil in subsonic flow

Cyrille Bonamy , Y. Gervais
Acoustics'08, Paris, France, June 29-July 4 2008., 2008, Paris, France
Conference papers hal-00416758v1

Non stationary aerodynamic measurements for aeroacoustic prediction models of the trailing edge noise

Cyrille Bonamy , Y. Gervais , J. Laumonier
Fan Noise 2003 – 2nd International Symposium, Sep 2003, Senlis, France
Conference papers hal-00147005v1
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Three-Dimensional visualisation and animation of CROCO numerical data using ParaView

Loïc Merlet , Achim Wirth , Cyrille Bonamy
[Research Report] Univ. Grenoble Alpes, CNRS, Grenoble INP, LEGI, 38000 Grenoble, France. 2022
Reports hal-03537600v1
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Estimation de l'empreinte carbone d'une heure.coeur de calcul

Francoise Berthoud , Bruno Bzeznik , Nicolas Gibelin , Myriam Laurens , Cyrille Bonamy
[Rapport de recherche] UGA - Université Grenoble Alpes; CNRS; INP Grenoble; INRIA. 2020
Reports hal-02549565v5