Добірка наукової літератури з теми "Identification des phénomènes d'écoulement"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Identification des phénomènes d'écoulement".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Статті в журналах з теми "Identification des phénomènes d'écoulement"
Ghernaout, Redhouane, Houari Zeggane, and Boualem Remini. "Dynamique du transport solide dans le bassin versant de l'Oued Isser au droit du barrage de Koudiat Acerdoune (Nord Algérie)." La Houille Blanche, no. 4 (August 2020): 15–32. http://dx.doi.org/10.1051/lhb/2020038.
Повний текст джерелаStumpf, André, Emmanuel Augereau, Julien Bonnier, Christophe Delacourt, and Eric Delcher. "Mesure des débits par photogrammétrie adaptée aux rivières torrentielles." La Houille Blanche, no. 5-6 (October 2018): 66–74. http://dx.doi.org/10.1051/lhb/2018053.
Повний текст джерелаDerrien, Sébastien, Anne Clutier, Benoît Blancher, and Florian Carraz. "Étude sur modèle réduit des affouillements en aval du barrage de Beaumont-Monteux sur l'Isère." La Houille Blanche, no. 1 (February 2019): 48–55. http://dx.doi.org/10.1051/lhb/2019007.
Повний текст джерелаAchite, M., and M. Meddi. "Variabilité spatio-temporelle des apports liquide et solide en zone semi-aride. Cas du bassin versant de l'oued Mina (nord-ouest algérien)." Revue des sciences de l'eau 18 (April 12, 2005): 37–56. http://dx.doi.org/10.7202/705575ar.
Повний текст джерелаCorpace, F., A. Monnier, A. Poulon Quintin, and J. P. Manaud. "Soudage par résistance du gainage combustible en acier ODS – Identification des phénomènes thermiques par la simulation numérique." Matériaux & Techniques 100, no. 4 (2012): 291–98. http://dx.doi.org/10.1051/mattech/2012026.
Повний текст джерелаBélanger, N., W. H. Hendershot, M. Bouchard, and S. Jolicoeur. "Identification des compartiments responsables de la qualité des eaux de surface d'un petit bassin versant du centre du Nouveau-Brunswick (Canada): application et analyse du modèle hydrochimique EMMA." Revue des sciences de l'eau 11, no. 1 (April 12, 2005): 117–37. http://dx.doi.org/10.7202/705300ar.
Повний текст джерелаBois, Antoine, Matthieu Jamme, and Guillaume Geri. "Pronostic rénal après une insuffisance rénale aiguë." Médecine Intensive Réanimation 31, no. 1 (March 21, 2022): 11–20. http://dx.doi.org/10.37051/mir-00092.
Повний текст джерелаChenou, Éliane, Janine Kuligowski, and Michèle Ferrand. "Altérations de l'embryogenèse de Marsilea vestita provoquées par un faible abaissement de température et phénomènes de récupération après retour aux conditions initiales." Canadian Journal of Botany 64, no. 4 (April 1, 1986): 784–92. http://dx.doi.org/10.1139/b86-101.
Повний текст джерелаRESZLER, CHRISTIAN, GÜNTER BLÖSCHL, and JÜRGEN KOMMA. "Identifying runoff routing parameters for operational flood forecasting in small to medium sized catchments / Identification de paramètres de propagation d'écoulement pour la prévision opérationnelle de crue au sein de bassins versants de petite à moyenne taille." Hydrological Sciences Journal 53, no. 1 (February 2008): 112–29. http://dx.doi.org/10.1623/hysj.53.1.112.
Повний текст джерелаOven, Jacqueline. "Un son vous manque et tout est dépeuplé." Journal for Foreign Languages 13, no. 1 (December 27, 2021): 467–80. http://dx.doi.org/10.4312/vestnik.13.467-480.
Повний текст джерелаДисертації з теми "Identification des phénomènes d'écoulement"
Wang, Lianfa. "Improving the confidence of CFD results by deep learning." Electronic Thesis or Diss., Université Paris sciences et lettres, 2024. http://www.theses.fr/2024UPSLM008.
Повний текст джерелаComputational Fluid Dynamics (CFD) has become an indispensable tool for studying complex flow phenomena in both research and industry over the years. The accuracy of CFD simulations depends on various parameters – geometry, mesh, schemes, solvers, etc. – as well as phenomenological knowledge that only an expert CFD engineer can configure and optimize. The objective of this thesis is to propose an AI assistant to help users, whether they are experts or not, to better choose simulation options and ensure the reliability of results for a target flow phenomenon. In this context, deep learning algorithms are explored to identify the characteristics of flows computed on structured and unstructured meshes of complex geometries. Initially, convolutional neural networks (CNNs), known for their ability to extract patterns from im-ages, are used to identify flow phenomena such as vortices and thermal stratification on structured 2D meshes. Although the results obtained on structured meshes are satisfactory, CNNs can only be applied to structured meshes. To overcome this limitation, a graph-based neural network (GNN) framework is proposed. This framework uses the U-Net architecture and a hierarchy of successively refined graphs through the implementation of a multigrid method (AMG) inspired by the one used in the Code_Saturne CFD code. Subsequently, an in-depth study of kernel functions was conducted according to identification accuracy and training efficiency criteria to better filter the different phenomena on unstructured meshes. After comparing available kernel functions in the literature, a new kernel function based on the Gaussian mixture model was proposed. This function is better suited to identifying flow phenomena on unstructured meshes. The superiority of the proposed architecture and kernel function is demonstrated by several numerical experiments identifying 2D vortices and its adaptability to identifying the characteristics of a 3D flow
Dijoux, Loïc. "Simulation numérique des phénomènes d'écoulement et de transport de masse en milieu poreux." Thesis, La Réunion, 2019. http://www.theses.fr/2019LARE0033.
Повний текст джерелаFlow and mass transport through porous media are an important part of underground water studies. Pollution spreading or salt water intrusion in coastal groundwater tables are well known applications. This thesis manuscript is dedicated to the study of this physical phenomena through numerical modelling. Different finite element methods are presented and discussed. We focus on the mathematical representation of strongheterogeneous and anisotropic porous media. We introduce two new numerical methods named H-RTm and H-RTp methods. They take advantage of the hybridization technique applied to mixed finite element methods and discontinuous Galerkin finite element methods. The benefits reached in the numerical representation of flow and mass transfer in porous media are illustrated through numerical examples currently used in literature
Bon, Christophe. "Relation pression-vitesse d'une classe d'écoulement instationnaire : application à la mesure des débits instantanés." Poitiers, 1996. http://www.theses.fr/1996POIT2256.
Повний текст джерелаCouture, Caroline. "Typologie des patrons d'écoulement et identification des zones sensibles en forêt." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0006/MQ43805.pdf.
Повний текст джерелаRanaïvoson, Daudet. "Dosage de granulats : Etude des phénomènes d'écoulement et de voute. Application à la conception des trémies doseuses." Nantes, 1990. http://www.theses.fr/1990NANT2039.
Повний текст джерелаBoughenou, Mourad. "Contribution à la compréhension des phénomènes de transfert de solutés en nanofiltration : caractérisation des membranes et application aux composés toxiques." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT015G.
Повний текст джерелаBenaziz, Marouane. "Identification et modélisation de phénomènes vibratoires non-linéaires dans les amortisseurs." Thesis, Ecully, Ecole centrale de Lyon, 2013. http://www.theses.fr/2013ECDL0058/document.
Повний текст джерелаHigh-frequency vibratory phenomena in shock absorbers are not suitable for the car sound quality. Forces (in the frequency range [200-800] Hz) transmitted from the shock absorber to the car body are responsible for the so-called "rattling noise". This structure-borne noise is starting from the shock absorber when the car drives over a rough road and is transmitted to the car body by structural transfer path. In order to understand and predict the phenomena, physical mechanisms generating high-frequency vibrations and peaks in the shock absorber response must be identified. These mechanisms are closely related to oil behaviour, internal mechanical components and interactions between all these elements. The present work consists on the one hand in modelling the shock absorber taking into account valve dynamics, valve stiction, friction and loss of pressure relations in the orifices. On the other hand, experimental shock absorber testing was conducted in order to build the model and to validate it. Model simulations reproduce observed phenomena in the experiments and helped us to identify the mechanisms leading to structure-borne noise, like spring valve opening and check-valve stiction. Sensitivity of the model response due to its input parameters was evaluated with Morris method. Moreover, some guidances are given in order to reduce the level of structure-borne noise generated by the shock absorber
Odaymet, Ahmad. "Etude du transfert thermique local et identification des structures d'écoulement lors de la condensation dans un microcanal en silicium." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2010. http://tel.archives-ouvertes.fr/tel-00711985.
Повний текст джерелаLissy, Anne-Sophie. "Imagerie quatitative non invasive et expérimentation pour l'intégration des phénomènes d'écoulement non uniforme dans les modèles de transfert de masse en milieux poreux hétérogènes : Application aux sols structurés." Thesis, Avignon, 2019. http://www.theses.fr/2019AVIG0709.
Повний текст джерелаPredicting the evolution of groundwater resource due to future climate change requires a better knowledge of water flows in soils which are highly complex porous medium. A lot of research has been conducted about soil water flow complexity over the last decades but predicting water flow in soils whatever soil texture, soil structure and rainfall intensities still remains a challenge. The objective of this work is to improve the modeling of water flow in structured soils by accounting to water flow from macropores to the soil matrix. We follow three successive steps : (i) to perform infiltration – drainage experiments on decimetric undisturbed soils columns under a medical tomograph to better observe flow phenomena within the soil macroporosity, (ii) to extract structural indicators from tomographic images, and study the macroporous soil structure, and (iii) to integrate structural indicators into a Darcy-Richards – KDW dual compartment flow model. Undisturbed soils studied are sampled from three different plots: (i) a clay soil worked in a field crop, (ii) a clay soil not worked in an orchard and (iii) a silt – sandy soil not worked and not cultivated. Three infiltration – drainage experiment are performed in a medical tomograph with fast image acquisition (~15 sec), 30 mm of water is supplied with a rainfall simulator and an intensity of 20 mm.h-1. Infiltration duration was of 90 min followed by 30 min of drainage. In total, the tomographic follow-up takes 120 min. Each experiment is done at three initial moisture conditions: (1) field capacity, (2) matrix potential at – 4 m, and (3) matrix potential at – 8 m. The initial structure observed before each infiltration shows that the soil macroporosity increases from 2 to 5% with the decrease of the initial water content. This increase is higher for the two clay soils compared to the silty – sandy soil. The hypothesis is that soil texture influences the evolution of the soil structure according to the matric water content. Thus, clay soils have the most variable soil structure over time, unlike silt – sandy soils which seem more structurally stable. Rapid movements of the soil structure during the infiltration and drainage phases was observed thanks to the time lapse tomographic monitoring. During water flow, soil macroporosity decreases between 7 to 30 % and increases again during drainage. The decrease of soil macroporosity during infiltration is more pronounced for the most saturated initial condition. The increase is less marked for the driest conditions. The hypothesis is that water flow along the macropores’ walls destabilizes causes an ‘over-swelling’ of the walls, which reverses during drainage. The study of overall indicators show that temporal monitoring of macropores density and their volumes makes it possible to discriminate specific texture and tillage behaviors different for the three soils. Models performed with the addition of profiled data measured on tomographic image in water flow model show that these measurements allow to reconstruct experimental data. Although the gap between modelling and observation for the driest experiments seems to indicate that it is necessary to continue the study of macropores – matrix exchanges in unsaturated conditions. This requires further study of the movements of the structure during wetting – drying cycles but also during the fast water flux transit
Vicente, Jérôme (1970. "Caractérisation de phénomènes dynamiques complexes par traitement d'images : application à la reconnaissance des fumées." Aix-Marseille 1, 1999. http://www.theses.fr/1999AIX11054.
Повний текст джерелаЧастини книг з теми "Identification des phénomènes d'écoulement"
Deschamps, Stéphane, François Fichet de Clairfontaine, Bruno Helly, Alain Rideaud, Michel Badalyan, and Ara Avagyan. "Identification et caractérisation des phénomènes sismiques:." In Living with Seismic Phenomena in the Mediterranean and Beyond between Antiquity and the Middle Ages, 301–16. Archaeopress Publishing Ltd, 2022. http://dx.doi.org/10.2307/jj.14638138.32.
Повний текст джерелаЗвіти організацій з теми "Identification des phénomènes d'écoulement"
Royer, Annie, Patrick Mundler, and Julie Ruiz. L’évolution du secteur bioalimentaire sur les territoires du Québec. Identification des principales dynamiques et facteurs explicatifs. CIRANO, February 2023. http://dx.doi.org/10.54932/gtkf5491.
Повний текст джерела