WorldCat Identities

Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (Strasbourg)

Overview
Works: 238 works in 238 publications in 2 languages and 456 library holdings
Genres: Conference papers and proceedings 
Roles: Other
Classifications: TK7874, 532.5
Publication Timeline
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Most widely held works by de l'informatique et de l'imagerie (Strasbourg) Laboratoire des sciences de l'ingénieur
2017 IEEE 15th International NEW Circuits and Systems Conference (NEWCAS) : conference proceedings : June 25-28, Strasbourg, France by International IEEE-NEWCAS Conference( )

1 edition published in 2017 in English and held by 218 WorldCat member libraries worldwide

Simulation biomécanique sous contraintes du cerveau pour la compensation per-opératoire du brain-shift by Fanny Morin( )

1 edition published in 2017 in French and held by 2 WorldCat member libraries worldwide

Purpose: During brain tumor surgery, planning and guidance are based on preoperative MR exams. The intraoperative deformation of the brain, called brain-shift, however affect the accuracy of the procedure. In this thesis, a brain-shift compensation method integrable in a surgical workflow is presented.Method: Prior to surgery, a patient-specific biomechanical model is built frompreoperative images. The geometry of the tissues and blood vessels is integrated. Intraoperatively, navigated ultrasound images are performed directly in contact with the brain. B-mode and Doppler modalities are recorded simultaneously, enabling the extraction of the blood vessels and probe footprint, respectively. A biomechanical simulation is then executed in order to compensate for brain-shift. Several constraints are imposed to the biomechanical model in order to simulate the contacts with the dura mater, register the pre- and intraoperative vascular trees and constrain the cortical surface with the probe footprint. During deep tumors resection, the surgical trajectory is also constrained to remain inside the cavity induced by the resected tissues in order to capture the lateral deformations issued from tissues retraction. Preoperative MR images are finally updated following the deformation field of the biomechanical model.Results: The method was evaluated quantitatively using synthetic and clinical data. In addition, the alignment of the images was qualitatively assessed with respect to surgeons expectations. Satisfactory results, with errors in the magnitude of 2 mm, are obtained after the opening of the dura mater and for the resection of tumors close to the cortical surface. During the resection of deep tumors, while the surgical trajectory enable to capture most of the deformations induced by tissues retraction, several limitations reflects the fact that this retraction is not actually simulated.Conclusion: A new efficient brain-shift compensation method that is integrable in an operating room is proposed in this thesis. The few studied topic of the resection, and more specifically of deep tumors, is also addressed. This manuscript thus present an additional step towards an optimal system in computer assisted neurosurgery
Couplage de la rObotique et de la simulatioN mEdical pour des proCédures automaTisées (CONECT) by Yinoussa Adagolodjo( )

1 edition published in 2018 in French and held by 1 WorldCat member library worldwide

Needle-based interventions are among the least invasive surgical approaches to access deep internal structures into organs' volumes without damaging surrounding tissues. Unlike traditional open surgery, needle-based approaches only affect a localized area around the needle, reducing this way the occurrence of traumas and risks of complications \cite{Cowan2011}. Many surgical procedures rely on needles in nowadays clinical routines (biopsies, local anesthesia, blood sampling, prostate brachytherapy, vertebroplasty ...). Radiofrequency ablation (RFA) is an example of percutaneous procedure that uses heat at the tip of a needle to destroy cancer cells. Such alternative treatments may open new solutions for unrespectable tumors or metastasis (concerns about the age of the patient, the extent or localization of the disease). However, contrary to what one may think, needle-based approaches can be an exceedingly complex intervention. Indeed, the effectiveness of the treatment is highly dependent on the accuracy of the needle positioning (about a few millimeters) which can be particularly challenging when needles are manipulated from outside the patient with intra-operative images (X-ray, fluoroscopy or ultrasound ...) offering poor visibility of internal structures. Human factors, organs' deformations, needle deflection and intraoperative imaging modalities limitations can be causes of needle misplacement and rise significantly the technical level necessary to master these surgical acts. The use of surgical robots has revolutionized the way surgeons approach minimally invasive surgery. Robots have the potential to overcome several limitations coming from the human factor: for instance by filtering operator tremors, scaling the motion of the user or adding new degrees of freedom at the tip of instruments. A rapidly growing number of surgical robots has been developed and applied to a large panel of surgical applications \cite{Troccaz2012}. Yet, an important difficulty for needle-based procedures lies in the fact that both soft tissues and needles tend to deform as the insertion proceeds in a way that cannot be described with geometrical approaches. Standard solutions address the problem of the deformation extracting a set of features from per-operative images (also called \textit{visual servoing)} and locally adjust the pose/motion of the robot to compensate for deformations \cite{Hutchinson1996}. [...]To overcome these limitations, we introduce a numerical method allowing performing inverse Finite Element simulations in real-time. We show that it can be used to control an articulated robot while considering deformations of structures during needle insertion. Our approach relies on a forward FE simulation of a needle insertion (involving complex non-linear phenomena such as friction, puncture and needle constraints).[...]
Turbulence and cavitation : applications in the NSMB and OpenFOAM solvers by Chao-Kun Huang( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

The objective of this thesis work concerns the study and implement of two cavitation models in the NSMB (Navier-Stokes-Multi-Blocks) flow solver: the Homogeneous Equilibrium Models (HEM) and a void ratio Transport-based Equation Model (TEM). The cavitation phenomenon is modeled by different liquid-vapor mixture equation of state (EOS). Numerical simulation are performed on some one- and two-dimensional compressible two-phase flows with interface conditions and compared with reference solutions. Moreover, The TEM based method for the void ratio including the source terms for vaporization and condensation in the free, open source software OpenFOAM is also presented on the Venturi geometry to capture the re-entrant jet phenomenon. The turbulence modeling plays a major role in the capture of unsteady behaviors and a limiter is introduced to reduce the eddy-viscosity to better predict the two-phase structure. A comparison of various cavitation models coupled with turbulence models are investigated. Computational results are compared with existing experimental data
Estimation cohérente de l'indice de surface foliaire en utilisant des données terrestres et aéroportées by Ronghai Hu( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Leaf Area Index (LAI), defined as one half of the total leaf area per unit ground surface area, is a key parameter of vegetation structure for modeling Earth's ecological cycle and its acquisition accuracy always has the need and opportunity for improvement. Active laser scanning provides an opportunity for consistent LAI retrieval at multiple scales because terrestrial laser scanning (TLS) and airborne laser scanning (ALS) have the similar physical mechanism. However, the three-dimensional information of laser scanning is not fully explored in current methods and the traditional theories require adaptation. In this thesis, the path length distribution model is proposed to model the clumping effect, and it is applied to the TLS and ALS data. The method of obtaining the path length distribution of different platforms is studied, and the consistent retrieval model is established. This method is found to improve the individual tree measurement in urban areas and LAI mapping in natural forest, and its results at consistent at different scales. The model is expected to facilitate the consistent retrieval of the forest leaf area index using ground and airborne data
Etude expérimentale d'instabilités à travers la convection turbulente de Rayleigh-Bénard et les instabilités de trajectoires de bulles en ascension by Viswa Maitreyi Moturi( )

1 edition published in 2019 in English and held by 1 WorldCat member library worldwide

The present work focuses on two common fluid flow problems namely, Turbulent Rayleigh-Bénard Convection and Path instability of rising bubbles immersed in a liquid. Concerning Rotating Turbulent Rayleigh-Bénard Convection, the flow field and temperature field were measured respectively by Particle Image Velocimetry (PIV) and Laser Induced Fluorescence (LIF) in a vertical plan of symmetry of our cylindrical cell of aspect ratio 1. The weakening of the Large Scale Circulation with decreasing Rossby number - leading to its complete disappearance - was confirmed as well as the formation of vortex columns in the rotation dominated regime. By doing velocity cross correlations, it has been possible to prove experimentally that the vorticity of the columns change direction in the cell's center. The velocity fluctuations in the cell are highly anisotropic and follow a scaling of Ro0.2 in the rotation affected regime. The temperature of the vortex columns as well as of individual plumes has been estimated by LIF measurements. Concerning the Path instability of rising bubbles, small bubbles rise in straight path, whereas beyond a critical size, bubbles rise in zigzag or helical path. Some new experimental points on the marginal stability curve have been obtained by working in silicon oils of 5 and 10 cst and in water. The agreement with the most recent numerical simulations is only partial. The rise velocity, frequency and amplitude of oscillation have also been measured and suggest a supercritical Hopf bifurcation
Instabilités de trajectoires de sphères, ellipsoïdes et bulles by Wei Zhou( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

The thesis presents a numerical study of path instabilities for spheres, oblate spheroids and bubbles moving freely under the effect of the gravity, buoyancy and hydrodynamic forces. For spheres, the parametric study of Jenny et al. (2004) is revisited, improved end extended with a special focus on the chaotic states. The results reveal that the effect of density ratio responsible for different oblique oscillating states of low and high frequencies has a significant impact both on the onset of chaos and on the behavior of fully chaotic states. Several quantitative statistical quantities are proposed and shown to be relevant for establishing the relation between chaotic and ordered states and for an objective comparison of random data of numerical or experimental origin. The extensive study on freely moving spheroids establishes the link between disks and spheres by varying the aspect ratio of spheroids from infinitely flat to almost spherical. The state diagrams provided for eight different aspect ratios of spheroid show in detail how the transition scenario varies depending of the body shape. The investigation of almost spherical spheroids reveals the specificities of the dynamics of light imperfect spheres.For the deformable gas bubble in the limit of zero gas/liquid density and viscosity ratio, a marginal stability curve is given in the two-parameter plane of the Galileo and the Bond number indicating the critical Galileo numbers for the loss of stability of vertical trajectories. The numerical investigation covers more than two decades of Bond number going from 0.1 to 20. The results clearly show the crucial role of the surface deformation
Photonic jet for spatial resolution improvement in direct pulse near-IR laser micro-etching by Andri Abdurrochman( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

This work has shown that the lateral resolution etching using near infrared lasers nanoseconds could be reduced by passing the beam through a glass microsphere or a silica fibers with spheroid shape in such a way to generate photonic jets. Etching on silicon size with a glass microsphere can be reduced by a factor of 44 compared to that of a direct etching without photonic jet. Powers reached densities allow even consider burning the glass with this type of laser, despite its very low absorption at these wavelengths. For the first time we have shown the possibility of obtaining photonic jets coming-out of a spheroid-tip of fiber optic. We also have shown the ability to etch silicon at the micron scale using the near infrared nanosecond laser. The possible use of optical fibers is clearly a decisive condition for the realization of a laser capable of etching process real intricate designs and repeatedly
A low-cost photonic method for monitoring different production processes involving contaminating materials using Fourier-Transform Raman spectroscopy by Valentin Ortega Clavero( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

In this doctoral research project, a Fourier Trasform Raman spectrometer (FT-Raman spectrometer) instrument has been developed with the intention to perform the monitoring of certain materials having a contaminating and harmful nature, in a clean and sustainable manner, and without significantly affecting the financial aspect of the user (low-cost approach). For this purpose, the proposed FT-Raman system has been developed by using an original combination of conventional hardware (optomechatronics) parts and a method that we propose for spectral evaluations. In this FT-Raman system that we propose no specialized and costly hardware parts for optical path compensation, Raman scattering detection, optical path tracking, etc. have been used. The proposed FT-Raman device has been tested by analyzing a series of chemical components widely used in Raman spectroscopy as standard reference materials (some of them are also known due to their negative impact on health or on environment). The resulting spectra obtained using our proposed device have greatly agreed with the values of the standard Raman spectra. A comparison with spectral outputs from state-of-the-art FT-Raman devices has been also performed. These results indicate that our ``flexible" combination of conventional hardware parts and the applied evaluation method that we propose can be used in certain monitoring applications requiring a high degree of frequency accuracy and spectral resolution, without having the burden of a considerable expenditure that such a non-dispersive "classical" instrument might represent
Re-doped SnO2 oxides for efficient UV-Vis to infrared photon conversion : application to solar cells by Karima Bouras( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Ce travail a porté sur la synthèse et caractérisations structurales, optiques et électriques des films d'oxyde d'étain (SnOx) dopés avec des éléments de terres rares (RE: Néodyme, Praséodyme ou Ytterbium). L'objectif est de démontrer la conversion de photons UV voire Visible en photons rouges via ces films RE :SnOx, tout en conservant leurs propriétés d'oxydes transparents conducteurs. Les films ont été produits par des méthodes chimiques (sol-gel, précipitation) ou physiques (pulvérisation cathodique). Grâce à des analyses fines, nous avons pu corréler les propriétés structurales et de composition des couches RE :SnOx avec leurs propriétés d'émission de photons. Nous avons pu établir les conditions optimales de conversion photonique dans des systèmes à une seule ou double terre rare. Les mécanismes régissant le transfert dans ces films ont été avancés. Enfin, nous avons appliqué ces couches minces RE :SnOx optimisés sur des cellules solaires en silicium et en CIGS et nous avons montré une amélioration des paramètres photovoltaïques du dispositif ainsi qu'un net gain dans la réponse spectrale de la cellule dans l'UV
Low energy photovoltaic conversion in MIND structures by Marek Basta( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Photovoltaic devices of today convert solar energy into electricity in a clean, renewable and inexhaustible way and represent a possible replacement for the fossil fuels. However, in order to compete with classical energy sources a significant increase in the conversion efficiency is inevitable. In this work, we concentrate on the aspects able to raise the conversion efficiency above the limitations of present cells. The first part of the study is devoted to new theoretical ideas considered as 3rd generation photovoltaics, while the most interest is kept at studying the possible benefits of electron multiplication at low-energies. In the second part of the study, we develop a model that allows a precise treatment of optical and transport properties of silicon structures with buried interfaces. Extensive theoretical and experimental analyses of existing MIND structures are then conducted. By studying the exact flux and power distribution inside several structures in conjunction with their geometry, we estimate the possible quantum efficiencies and compare them with experimental results. Through the means of numerical simulations coupled with experimental characterization, we extract the carrier collection efficiency of studied cells. New effects are being observed, such a possible increase in collection efficiency above unity. A deeper analysis of the experimental results coupled with the numerical study analyzes several classical and non-classical explanations of the increase in collection efficiency or the resulting increase in the quantum efficiency. With most of the classical explanations ruled out, we conclude that the most probable, but not definitiveexplanation of this effect can be interpreted as the result of a low-energy carrier multiplication
Etude de l'effet des fines et de la teneur en eau sur le comportement hydromécanique des matériaux granulaires by Peng Jing( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Les matériaux granulaires sont souvent utilisés dans les chaussées à faible trafic, pour la réalisation des couches d'assise non liées. L'objectif de la thèse est une meilleure compréhension du comportement hydromécanique des matériaux granulaires insaturés sous charge répétée en tenant compte des différents effets couplés: teneur en eau et teneur en fines. Une série d'essais triaxiaux à chargements répétés (TCR) est réalisée avec les différents échantillons de sable de Missillac remodelés à différentes teneurs en eau et en fines pour caractériser les comportements de déformation permanent et résilient. En outre, les courbes de rétention sont obtenues par des essais de succion. Puis, sur la base des résultats expérimentaux, les modèles de déformations permanentes et réversibles existants sont améliorés pour prendre en compte les teneurs en fines et en eau variables. Finalement, le comportement de l'état limite du sable Missillac est estimé avec les effets des teneurs en fines et en eau
Étude des bases cérébrales de la maladie à corps de Lewy par IRM multimodale by Eléna Chabran( )

1 edition published in 2019 in French and held by 1 WorldCat member library worldwide

Deuxième pathologie neurodégénérative cognitive la plus fréquente après la maladie d'Alzheimer (MA), lamaladie à corps de Lewy (MCL) demeure pourtant mal connue et constitue encore aujourd'hui un réelchallenge, à la fois sur les plans clinique et scientifique et en matière de santé publique. L'imagerie parrésonance magnétique (IRM), technique non invasive et multimodale, constitue une approche particulièrementprometteuse pour enrichir la compréhension des mécanismes cérébraux sous-jacents à cette maladie. Dans lecadre de ce travail de thèse, nous nous sommes intéressés aux modifications cérébrales fonctionnelles,structurelles et microstructurelles survenant chez les patients MCL aux stades précoces, comparés à despatients MA et des sujets sains âgés, et à leur liens avec certains symptômes-clés de la MCL tels que lesfluctuations cognitives. Les études réalisées comprenaient des analyses de connectivité fonctionnelle au coursd'un paradigme visuoperceptif et à l'état de repos, des analyses morphométriques, ainsi que des analysesquantitatives multiparamétriques. Les résultats obtenus mettent en évidence chez les patients MCL aux stadesprécoces des perturbations de la connectivité fonctionnelle au repos entre le réseau de saillance, le réseau pardéfaut et les réseaux attentionnels, probablement secondaires à des dysconnexions précoces à l'intérieur duréseau de saillance. Ces changements de connectivité, associés à des modifications subtiles du volume dematière grise au sein du système cholinergique, pourraient contribuer à l'émergence des fluctuationscaractérisant la MCL. Enfin, les patients MCL présentent des anomalies de diffusion au sein de la substancegrise dans les régions frontales et le cortex cingulaire antérieur, et de la substance blanche dans les régionsoccipitales et pariétales, susceptibles de favoriser les anomalies de connectivité fonctionnelle
Efficient and scalable video conferences with selective forwarding units and webRTC by Boris Grozev( )

1 edition published in 2019 in English and held by 1 WorldCat member library worldwide

Recent developments in video communication led to the introduction of Selective Forwarding Units. These systems have the potential to significantly improve efficiency and offer new functionality, but they present challenges of their own, requiring new approaches and solutions. This thesis is dedicated to the study of SFU systems, with a focus on making them more efficient. We begin with the problem of efficiency and propose an algorithm for endpoint selection based on speech activity. Then we evaluate the use of simulcast for further lower the required bandwidth. Next, we propose a distributed server approach with the goals of improving user connection quality. We present an analysis, implementation, and a randomized experiment measuring connection quality. Finally we propose an extension for end-to-end encrypted conferences with SFUs
Devenir des résidus médicamenteux et de leur métabolites au sein des Zones de Rejet Végétalisées (ZRV) by Maximilien Nuel( )

1 edition published in 2017 in French and held by 1 WorldCat member library worldwide

Wastewater Treatment Plants (WWTP) are considered as one of the most important pharmaceutical compound discharges into the environment. Since 2009, French Water Agencies, promote Surface Flow Treatment Wetlands (SFTWs) at the outlet of WWTPs, between the WWTP and the receiving aquatic environment but their removal efficiencies are not well investigated. To overcome these lacks of knowledge, pollutant removal efficiencies of 2 WWTP and their SFTW were monitoring during 2 years. ln regard to pharmaceutical compounds (86), SFTW removal efficiency rates ranged from 30 to 70% with maximum values in summer and minimum values in winter. The SFTW removal efficiency contributions to WWTP were inferior to 30%. ln addition, SFTW inflow reductions were correlated with an increase of drug compound concentrations in the outflow. Furthermore, there was a specific absorption of these micro pollutants by plants whereas there were dynamic interactions between sampled mud and drugs residues with an adsorption during summer and a release during winter
Modélisation et simulation des réponses électriques de cellules solaires organiques by Adam Raba( )

1 edition published in 2015 in French and held by 1 WorldCat member library worldwide

Le principal objectif de ce travail est d'étudier les cellules solaires organiques de type hétérojonction en volume à l'aide d'un modèle bidimensionnel spécifique incluant un état intermédiaire pour la dissociation des charges dans les matériaux organiques. Ce modèle est mis en place dans un logiciel de simulation par éléments finis. Après validation, il est comparé à deux approches existant dans la littérature. Le grand nombre de paramètres requis pour décrire le mécanisme complexe de génération de charges nécessite un algorithme robuste, basé sur l'exploitation de chaînes de Markov, pour extraire ces paramètres physiques à partir de données expérimentales. Le modèle ainsi que la procédure d'extraction de paramètres sont utilisés dans un premier temps pour étudier le mécanisme de dissociation associé à une cellule comportant une nouvelle molécule. Ensuite le comportement en température de cellules à base de P3HT : PCBM est simulé et comparé à des mesures expérimentales
Etude de l'impact des conditions géologiques et climatiques sur l'efficacité énergétique des systèmes géothermiques de surface by Mathias Cuny( )

1 edition published in 2017 in French and held by 1 WorldCat member library worldwide

Surface geothermal systems extract energy from the ground via a fluid circulating in an exchanger at a depth not exceeding 200 m. Two typologies of exchangers are generally used: systems with vertical exchangers, mainly affected by geological conditions; and horizontal exchangers, closer to the surface of ground, impacted mainly by weather conditions. Thermal exchanges in the soil are mainly conduction heat transfers. Thus, thermo-physical properties of soil influence, mostly, energy extracted by exchangers. In order to quantify influence of geological and meteorological conditions on thermo-physical properties of soil, two experimental devices are developed, designed, instrumented and validated. The experimental results provide more appropriate scientific knowledge on hydric behavior of a soil subjected to rain events and influence of compactness on thermal properties of soil. In addition, one numerical study, based on a finite element 2D modeling of an earth-air heat exchanger, evaluates their energy performance under different soil moisture conditions and rain scenarios thus revealing the utility of water to significantly improve its performance
Optimisation et planification préopératoire des trajectoires en conditions statiques et déformables pour la chirurgie guidée par l'image by Noura Hamze( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

En chirurgie mini-invasive guidée par l'image, une planification préopératoire précise des trajectoires des outils chirurgicaux est un facteur clé pour une intervention réussie. Cependant, une planification efficace est une tâche difficile, qui peut être considérablement améliorée en considérant différents facteurs contributifs tels que les déformations biomécaniques intra-opératoires, ou en introduisant de nouvelles techniques d'optimisation. Dans ce travail, nous nous concentrons sur deux aspects. Le premier aspect porte sur l'intégration de la déformation intra-opératoire dans le processus de planification de trajectoire. Nos méthodes combinent des techniques d'optimisation géométrique à base de simulations biomécaniques. Elles sont caractérisées par un certain niveau de généralité, et ont été expérimentées sur deux types d'interventions chirurgicales: les procédures percutanées pour l'ablation de tumeurs hépatiques, et la stimulation cérébrale profonde en neurochirurgie. Deuxièmement, nous étudions, mettons en œuvre, et comparons plusieurs approches d'optimisation en utilisant des méthodes qualitatives et quantitatives, et nous présentons une méthode efficace d'optimisation évolutionnaire multicritères à base de Pareto qui permet de trouver des solutions optimales qui ne sont pas accessibles par les méthodes existantes
Modélisation et correction des déformations du foie dues à un pneumopéritoine : application au guidage par réalité augmentée en chirurgie laparoscopique by Jordan Bano( )

1 edition published in 2014 in French and held by 1 WorldCat member library worldwide

La réalité augmentée permet d'aider les chirurgiens à localiser pendant l'opération la position des structures d'intérêt, comme les vaisseaux sanguins. Dans le cadre de la chirurgie laparoscopique, les modèles 3D affichés durant l'intervention ne correspondent pas à la réalité à cause des déformations dues au pneumopéritoine. Cette thèse a pour objectif de corriger ces déformations afin de fournir un modèle du foie réaliste. Nous proposons de déformer le modèle préopératoire du foie à partir d'une acquisition intraopératoire de la surface antérieure du foie. Un champ de déformations entre les modèles préopératoire et intraopératoire est calculé à partir de la distance géodésique à des repères anatomiques. De plus, une simulation biomécanique du pneumopéritoine est réalisée pour prédire la position de la cavité abdomino-thoracique qui est utilisée comme condition limite. L'évaluation de cette méthode montre que l'erreur de position du foie et de ses structures internes est réduite à 1cm
Modèle effectif par une approche de Saint-Venant pour les écoulements complexes lors d'inondations urbaines by Shangzhi Chen( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Les inondations représentent le premier danger naturel sur chaque continent, avec des préoccupations particulières centrées sur les inondations urbaines pour l'urbanisation sans précédent, qui augmente la vulnérabilité des sociétés humaines aux inondations. Pour les difficultés d'accès aux données en temps réel, la méthode numérique semble être une approche puissante pour la prévision des inondations et l'atténuation des dommages. Dans cette thèse, un nouveau logiciel Flood1D2D pour la modélisation des crues urbaines a été proposé en utilisant le maillage de couplage 1D2D, avec 1D dans la rue et 2D appliqué au carrefour. Le logiciel est conçu sur la base de l'installation située dans ICube Strasbourg et validée à l'aide de cas de tests synthétiques. La nouveauté du modèle est de rendre compte de l'effet de recirculation en utilisant la fonction de porosité, et de reproduire la convexité dans les profils de profondeur le long de la rue en aval de chaque carrefour où une zone de recirculation apparaît. Une analyse de sensibilité basée sur la variance est également réalisée pour les modèles classiques d'eau peu profonde 1D et 2D pour l'étalonnage de modèles et la collecte de données
 
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Alternative Names
ICube

ICube Laboratory

Laboratoire des sciences de l'ingénieur de l'informatique et de l'imagerie facility in Illkirch-Graffenstaden, France

Laboratoire ICube

UMR 7357

Languages
English (13)

French (7)