Lionel THOMAS
- Hydrodynamique et écoulements environnementaux [Institut Pprime] (HydEE)
- Université de Poitiers = University of Poitiers (UP)
Domaines de recherche
Compétences
Publications
Publications
Estimation of particle number and detection error from simple peak detection for PTV and LPT16th International Symposium on Particle Image Velocimetry – ISPIV 2025, Jun 2025, Tokyo (Japan), Japan |
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NUMERICAL SIMULATION AND MODELING OF THE DETACHMENT OF AN ISOLATED SPHEROID FROM A FLAT SURFACE12th International Conference on Multiphase flow, May 2025, Toulouse (Centre de Congrès Pierre Baudis), France |
Mesures couplées vitesse/déformation d'interface pour caractériser la déformation d'un lit de sédiment cohésif modèle soumis à un écoulement d'eau55ème Journées Thématiques de l’AFVL « Mesures optiques appliquées aux écoulements chargés et suspensions », Mar 2025, Meudon, France |
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Application of a cohesive model material to study mud erosion mechanisms under transverse flow and waves8th International Conference on Estuaries and Coasts, Aug 2024, Québec, Canada |
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Erosion measurements of cohesive sediments from the Gironde estuary8th International Conference on Estuaries and Coasts, Aug 2024, Québec (CA), Canada |
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Rheological properties of cohesive sediments from Gironde estuary and their impact on the erosion threshold21st Physics of Estuaries and Coastal Seas Conference, Sep 2024, Bordeaux, France |
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Un nouvel environnement pour la PTV 3D basé sur le ”coherent point drift”18e Congrès Francophone de Techniques Laser (CFTL 2024), Laboratoire de Mécanique des Fluides et d’Acoustique (UMR CNRS 5509, École centrale de Lyon, INSA Lyon, Université Claude Bernard Lyon I), Sep 2024, Lyon, France |
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Coupling Coherent Point Drift And Affine Least-Squares Transformation To Build Trajectories In TR-PTV21st International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Center for Innovation Technology and Policy Research, Instituto Superior Técnico (IN+); Associação para o Desenvolvimento da Aerodinâmica Industrial, University of Coimbra (ADAI), Jul 2024, Lisbonne, Portugal. pp.28, ⟨10.55037/lxlaser.21st.28⟩ |
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A Particle Based Approach For Improved Resolution PIV And TOMO-PIV Based On The Coherent Point Drift And The Affine Least-Squares Transformation21st International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Center for Innovation Technology and Policy Research, Instituto Superior Técnico (IN+); Associação para o Desenvolvimento da Aerodinâmica Industrial, University of Coimbra (ADAI), Jul 2024, Lisbonne, Portugal. ⟨10.55037/lxlaser.21st.29⟩ |
A fringe based optical method to measure 3D fluid films thickness15th International Symposium on Particle Image Velocimetry, Jun 2023, San Diego, United States. 6 p |
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Proof-of-concept study of Coherent Point Drift registration for particle pairing in Particle Tracking Velocimetry15th International Symposium on Particle Image Velocimetry, Jun 2023, San Diego, United States. pp.1-6 |
Free surface measurement of a fluid in contact with a rotating cylinder16th International Conference on Quality Control by Artificial Vision, Institut Clément Ader UMR CNRS 5312, Jun 2023, Albi, France. pp.13, ⟨10.1117/12.2690499⟩ |
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Mesure de la surface libre d’un fluide en contact avec un cylindre en rotationCongrès Francophone de Techniques Laser, Sep 2022, Leuven, France |
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Erosion of a model cohesive seabed in wave-current flume5th Symposium on two-phase modeling for sediment dynamics in geophysical flows, THESIS 2022, LEGI, Univ. Grenoble-Alpes, Jun 2022, Les Houches, France |
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Experimental study of the interactions between viscoplastic bed and waves18èmes Journées de l'Hydrodynamique, Nov 2022, Poitiers, France |
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Erosion of Cohesive Model Sediment under Turbulent Flow Studied by PIV39th IAHR World Congress, Jun 2022, Granada, Spain. pp.388-396, ⟨10.3850/IAHR-39WC252171192022499⟩ |
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Fluid structure interactions of a pitching wing at high angle of attack14th International Symposium on Particle Image Velocimetry, Aug 2021, Chicago (IL), United States. ⟨10.18409/ispiv.v1i1⟩ |
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Experimental Study Of Darrieus Turbines In Confined Free-Surface Flows14th International Symposium on Particle Image Velocimetry, Aug 2021, Chicago (IL), United States. ⟨10.18409/ispiv.v1i1⟩ |
Mesure de tomographie PIV au sein d'une cellule de cisaillement16ème Congrès Francophone de Techniques Laser pour la mécanique des fluides, CNRS, CentraleSupélec, Université Paris Saclay, IRSN, Sep 2018, Dourdan, France |
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Implémentation d'un nouveau modèle de caméra à correction discrète pour résoudre les problèmes de variations d'indice de réfraction dans les mesures de tomo-PIV16ème Congrès Francophone de Techniques Laser pour la mécanique des fluides, CNRS, CentraleSupélec, Université Paris Saclay, IRSN, Sep 2018, Dourdan, France |
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Adaptation de la PIV tomographique aux écoulements confinés : cas d'un moteur à combustion interne16ème Congrès Francophone de Techniques Laser pour la mécanique des fluides, CNRS, CentraleSupélec, Université Paris Saclay, IRSN, Sep 2018, Dourdan, France |
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Experimental study of a vertical vortex propagating above a smooth wall18 th International Symposium on Flow Visualization, Jun 2018, Zurich, Switzerland |
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Novel ex-situ calibration procedure for Tomographic PIV in a confined environment: application to a single-cylinder optical engineThe 12th International Symposium on Particle Image Velocimetry, Jun 2017, Busan, South Korea |
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Development of optical methods for surface and volumetric measurements18th International Congress of Metrology, Sep 2017, Paris, France. pp.15001, ⟨10.1051/metrology/201715001⟩ |
Tomographic piv measurements of an inclined heated jet in crossflow18th International Symposium on the Applicationof Laser and Imaging, Jul 2016, Lisbonne, Portugal |
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Mesures couplées de vibrations d'aile et de forces en régime turbulentCFTL2016, Sep 2016, Toulouse, France |
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Reconstruction de volumes de particules par processus ponctuels marquésCFTL2016, Sep 2016, Toulouse, France |
Reconstruction de volume de particules basée sur un processus à la Tomo-PIVGRETSI 2015, Sep 2015, Lyon, France |
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Particle Volume Reconstruction based on a Marked Point Process and Application to Tomo-PIVEUSIPCO 2015, Aug 2015, Nice, France |
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3D PARTICLE VOLUME TOMOGRAPHIC RECONSTRUCTION BASED ON MARKED POINT PROCESS: APPLICATION TO TOMO-PIV IN FLUID MECHANICS2014 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2014, Florence, Italy |
Optical Metrology Applied to Free-Surface FlowsHydro-Testing Forum, Dec 2014, Val de Reuil, France |
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Processus hydro-sédimentaires du mascaret : modélisations physique et numérique14ème Congrès de l’Association Sédimentologue de France, Nov 2013, Paris, France. pp.31-32 |
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Direct experimental comparison between tomo-PIV and scanning tomo-PIV: wake flow behind a half-cylinder10th International Symposium on Particle Image Velocimetry, Jul 2013, DElft, Netherlands. pp.A032 |
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Volumetric Measurements by Tomographic PIV of an Open Channel Flow Behind a Turbulent Grid18th Australasian Fluid Mechanics Conference, Dec 2013, Launceston, Australia. pp.978-1-62748-146-5 |
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Nouvelle méthode de reconstruction de volumes de particules 3D basée sur les processus ponctuels marques : Application à la TOMO-PIV en mécanique de fluideWorkshop XLIM 2013, Sep 2013, Limoges, France |
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Volumetric measurements by tomographic PIV of grid generated turbulence in an open channel flowEighth International Symposium on Turbulence and Shear Flow Phenomena (TSFP8), Aug 2013, Poitiers, France |
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Mesure volumique par tomo-PIV d'un écoulement dans un canal turbulent de surface libre derrière une grilleCongrès Francophone de Techniques Laser, CFTL 2012, Sep 2012, Rouen, France |
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Tomographic PIV study of lifted flames in turbulent Axisymmetric jets of methane16th Int Symp on Applications of Laser Techniques to Fluid Mechanics, Jul 2012, Lisbon, Portugal. pp.377 |
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Time-Resolved Tomo-PIV Measurements to Study 3D Coherent Structures in a Pulsed Jet in Cross-flow34th World Congress of the International Association for Hydro- Environment Research and Engineering (IAHR), Jun 2011, Brisbane, Australia. pp.3785-3792 |
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Influence of geometric parameters and image preprocessing on tomo-PIV results15th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Jul 2010, Lisbon, Portugal. pp.1813 |
Comparison of algebraic reconstruction and laser sheet scanning for tomography PIVPIV 2009 - 8th International Symposium on Particle Image Velocimetry, Aug 2009, Melbourne Victoria, Australia |
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Time-resolved simultaneous SPIV-LIF and orthogonal LIF measurements in a pulsed jet in crossflow8th International Symposium on PIV, Aug 2009, Melbourne Victoria, Australia |
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Mesure de grandeurs cinématiques tridimensionnelles par tomographie optique à balayage et tomographie par reconstruction algébriqueCFM 2009 - 19ème Congrès Français de Mécanique, Aug 2009, Marseille, France |
Techniques de mesures tridimensionnelles pour les écoulements fluides13ème Congrès de Fluvisu, 2009, Reims, France |
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Jet pulsé dans un écoulement transverse à faible nombre de Reynolds11e Congrés Francophone de Techniques Laser, Poitiers, 2008., 2008, Poitiers, France |
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Analysis of a pulsed jet in cross flow by multi-plane snapshot POD14th Int. Symp. on Applications of Laser Techniques to Fluid Mech., Lisbon, Portugal, 2008., 2008, Lisbon, Portugal |
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Etude par PIV de la structuration tridimensionnelle moyenne et des fluctuations cycle à cycle d'une aérodynamique interne moteur de type rouleau11e congrès Francophone de vélocimétrie Laser, Toulouse, 2008., 2008, Toulouse, France |
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Study of three-dimensional vortex structures in cross-flow by time resolved tomographic PIV7th Int. Symp. on PIV, Roma, Italy, 11-14 September 2007, Sep 2007, Rome, France |
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PIV 2.5D3C : Mesure d'interfaces et de surfaces 3D10ème congrès Francophone de Techniques Laser (CFTL), Sep 2006, Toulouse, France |
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Techniques expérimentales de mesures de surfaces libres41ème Colloque du Groupe Français de Rhéologie, Oct 2006, Cherbourg, France |
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Influence of the buoyancy on a jet in crossflow12th International Symposium on Flow Visualization, Sep 2006, Göttingen, Germany |
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Comparaison de modèles de dispersion de particules en écoulement turbulent anisotrope17e Congrès Français de Mécanique, 2005, Troyes, France |
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Experimental investigation of light particles transport in a tidal bore generated in a flumeSébastien Erpicum; Benjamin Dewals; Pierre Archambeau; Michel Pirotton. Sustainable Hydraulics in the Era of Global Change. Advances in Water Engineering and Research, CRC Press, pp.478-484, 2016, 978-1138029774 |
Simple Library of Image Processing (SLIP)2010 |
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Etudes d'un jet dans un écoulement transverse2008 |
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Vers une segmentation expérimentale 4D des écoulements: cohérence et mélangeMécanique des fluides [physics.class-ph]. Université de Poitiers, 2018 |