Littérature scientifique sur le sujet « Simulations thermiques dynamiques »
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Articles de revues sur le sujet "Simulations thermiques dynamiques"
Maarka, Kenza, et Azeddine Soudani. « Etude tridimensionnelle de la convection mixte dans une conduite cylindrique horizontale ». Journal of Renewable Energies 22, no 2 (6 octobre 2023) : 227–36. http://dx.doi.org/10.54966/jreen.v22i2.740.
Texte intégralYoucef, Ahmed, et Rachid Saim. « Simulation numérique du comportement dynamique et thermique de deux fluides en contre courant ». Journal of Renewable Energies 20, no 1 (12 octobre 2023) : 69–80. http://dx.doi.org/10.54966/jreen.v20i1.610.
Texte intégralFezzioui, Naïma, Mebirika Benyamine, Nacima Tadj, Belkacem Draoui et Salah Larbi. « Performance énergétique d’une maison à patio dans le contexte maghrébin (Algérie, Maroc, Tunisie et Libye) ». Journal of Renewable Energies 15, no 3 (23 octobre 2023) : 399–405. http://dx.doi.org/10.54966/jreen.v15i3.330.
Texte intégralBenoudjafer, Ibtissame, Fouad Ghomari et Abderrahmane Mokhtari. « Etude comparative relative à l’efficacité énergétique de deux appartements situés à Béchar, Algérie ». Journal of Renewable Energies 15, no 1 (23 octobre 2023) : 1–12. http://dx.doi.org/10.54966/jreen.v15i1.296.
Texte intégralGoldspiegel, Fabien, Philippe Michel, Jean-Baptiste Blumenfeld, Jean-Baptiste Oszenda et Katia Mocellin. « Influence des effets dynamiques et thermiques sur l’assemblage par clouage ». Matériaux & ; Techniques 106, no 3 (2018) : 305. http://dx.doi.org/10.1051/mattech/2018049.
Texte intégralNameche, T., et J. L. Vassel. « Bilan thermique sous climat tempéré des lagunes aérées et naturelles ». Revue des sciences de l'eau 12, no 1 (12 avril 2005) : 65–91. http://dx.doi.org/10.7202/705344ar.
Texte intégralBerroug, Fatiha, El Khadir Lakhal, Mohamed El Omari et Hamid El Qarnia. « Simulation numérique des besoins énergétiques d’une serre agricole sous le climat de Marrakech - Maroc ». Journal of Renewable Energies 13, no 1 (25 octobre 2023) : 133–48. http://dx.doi.org/10.54966/jreen.v13i1.184.
Texte intégralMonteil, C., et M. Amouroux. « Analyse du comportement thermique du sol d'une serre agricole par simulation dynamique ». Journal de Physique III 7, no 2 (février 1997) : 405–40. http://dx.doi.org/10.1051/jp3:1997130.
Texte intégralAutrique, Laurent, et Laetitia Perez. « Traitement de données par l’analyse d’une courbe de Lissajous pour la caractérisation d’un matériau ». J3eA 22 (2023) : 1022. http://dx.doi.org/10.1051/j3ea/20231022.
Texte intégralMARTINET, C., G. RAMOS et J. GAILHARD. « Impact des lâchers d’eau sur l’Ain (France) pour limiter l’échauffement de l’eau ». Techniques Sciences Méthodes 5 (22 mai 2023) : 121–28. http://dx.doi.org/10.36904/tsm/202305121.
Texte intégralThèses sur le sujet "Simulations thermiques dynamiques"
Gribaa, Karim. « Simulation des effets thermiques et dynamiques dans le caoutchouc ». Paris 6, 1993. http://www.theses.fr/1993PA066109.
Texte intégralAkkouche, Nour El Houda Rabab. « Approche comportementale pour le pilotage des consommations énergétiques dans le bâtiment ». Electronic Thesis or Diss., Université Paris sciences et lettres, 2023. http://www.theses.fr/2023UPSLM081.
Texte intégralIn the current context, efforts to reduce energy consumption in buildings must take into consideration a wide range of parameters, the building, its environment, its equipment and, above all, the behavior of its users. Nudges, which emerged from behavioral economics and find applications in various fields (finance, food, health, etc.), have been explored in the environmental context in general, and specifically in that of energy consumption in buildings.The aim of our work is to implement energy-saving behaviors through nudges in a building and to measure their impact using smart meters. Our approach involves dynamic thermal simulations, the use of connected sensors, and the creation of occupant profiles through questionnaires. These elements are typically addressed individually and isolated in the literature.We start with a theoretical assessment of the energy-saving actions that have the most significant impact in reducing energy consumption in a public tertiary building located in France. We create a framework based on psychological theories and previous works to define concepts that we use to define different energy consumers profiles. We conduct an experimentation using smart meters to measure the impact of nudges on behavioral change among occupants of an office building. To do this, we implement a platform for delivering various types of nudges to different profiles that we have established from a classification based on behavioral theories. In this way, we have combined the technological and behavioral aspects, which are often dealt with separately, and for which research often requires a multidisciplinary approach.Simulating different types of energy use scenarios in the same building is also interesting for studying the impact of occupants' behavior on energy consumption, and how the use of tailored incentives to raise awareness and encourage the larger adoption of energy savings measures can lead to a significant reduction in energy consumption in the building.The results obtained are positive in terms of energy savings, provided that prior knowledge of occupants is established
Lemay, Patrick. « Simulation dynamique des échanges thermiques à l'intérieur d'une serre ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq21791.pdf.
Texte intégralFan, Yilin. « Distribution des fluides et intensification des transferts thermiques dans un échangeur thermique par l'intégration des distributeurs constructals ». Chambéry, 2008. http://www.theses.fr/2008CHAMS040.
Texte intégralThis thesis contributes to the advances in the conception, fabrication, modeling, experiment, and optimization of multi-scale fluid distributors. The function of such fluid distributors is to deliver a controlled amount or rate of fluid to an array of distributing ports, in order for example to feed uniformly the channels of a multi-channel heat exchanger and consequently intensify the heat transfer with the least increase of pressure drop. Their multi-scale internal channel structures are optimized by minimizing the viscous dissipation and the residence time simultaneously according to the "constructal theory". Polymer and metallic prototypes of the constructal components were fabricated using Stereolithography. Constructal distributor prototypes were assembled with a mini crossflow heat- exchanger to evaluate the effects of flow distribution on its thermal and hydraulic performances by experiments and by Computational Fluid Dynamics (CFD) simulations. The enhancement of heat transfer realized by flow uniform distribution and the thermal- hydraulic balance are discussed. The results indicate that the integration of one constructal collector at the outlet of the heat exchanger can approach the uniform flow distribution and consequently better intensify the heat transfer. It is also the most advantageous configuration based on a balanced consideration of heat transfer intensification and pump power consumption under the investigation conditions. The results may provide some original information and thoughts to the design and optimization of heat exchangers and flow distribution/collection systems
Moujalled, Bassam. « Modélisation dynamique du confort thermique dans les bâtiments naturellement ventilés ». Lyon, INSA, 2007. http://theses.insa-lyon.fr/publication/2007ISAL0005/these.pdf.
Texte intégralN this work we focus on the adaptive approach of thermal comfort by combining features of both the static and adaptive theories. In the first step we have conducted a bibliographical study on the existing theories and approaches and which has led us to carry a field study on thermal comfort in eight office buildings. Afterwards we have adopted the systemic approach to develop a dynamic model on thermal comfort by integrating the dynamic mechanisms identified in the bibliography and the field study. This model, named AdOCC, determines the dynamic thermal state of the occupant from which the model can determine the adaptive behaviour of the occupant. AdOCC has been integrated in the dynamic simulation tool ‘TRNSYS’ and has been evaluated by comparing the results of the simulations with measurements. By applying this model to the case of a naturally ventilated office building we have found the conditions where thermal comfort can be achieved with limited energy consumptions
Moujalled, Bassam Guarracino Gérard Cantin Richard. « Modélisation dynamique du confort thermique dans les bâtiments naturellement ventilés ». Villeurbanne : Doc'INSA, 2007. http://docinsa.insa-lyon.fr/these/pont.php?id=moujalled.
Texte intégralZaoui, Hayat. « Conduction thermique à la nanoéchelle dans le silicium : simulations par dynamique moléculaire d’approche à l’équilibre ». Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10081/document.
Texte intégralThe thermal conductivity of nanostructures varies on a large scale compared to bulk materials. Sometimes the thermal transfer is worse due to the reduction of thermal conductivity, at the origin of self-heating in electronic devices, but valuable for thermoelectric devices. In other cases, the thermal conductivity reaches impressive levels compared to bulk materials. The origin of these behaviors is at the atomic level, and the in the propagation of the heat carriers, the phonons. In this thesis, we study heat transport in silicon nanostructures by atomic scale simulations. Molecular dynamics is used here in the framework of a methodology we recently developed, the approach-to-equilibrium molecular dynamics (AEMD). This methodology relies on the creation and exploitation of temperature transients. First we present the principles of AEMD in the case of bulk silicon. Then we determine the thermal conductivity of smooth nanowires versus diameter and length. We show that the temperature profiles do comply with the heat equation, and that the thermal conductivity saturates at long length. Afterwards we study nanostructuring effects by hollowing, and nanowires with rough surfaces. In this last case, we compare our results with an alternative simulation approach and investigate the relative importance of intrinsic and surface phonon scattering. Finally, we calculate the thermal conductivity of nanopatterned silicon membranes for thermoelectric devices. We show that to further decrease the thermal conductivity, it will be necessary to introduce other sources reduction than cylidrincal hole etching, and AEMD will be the appropriate tool for an optimisation
Vatteville, Judith. « Dynamique des panaches thermiques laminaires : application aux panaches mantelliques ». Paris, Institut de physique du globe, 2009. http://www.theses.fr/2009GLOB0006.
Texte intégralIn Earth Sciences, hot upwelling plumes are thought to develop from the base of the 2900 kmthick solid mantle of our planet and to generate hotspots, i. E. Intraplate volcanic islands such as Hawaii and La Reunion. Although generated through chaotic Rayleigh-B´enard instabilities at a Prandtl number (Pr) around 1023, they can be modelled with the simpler case of starting plumes out of a finite-size heater, either numerically for infinite Prandtl number, or in the laboratory with fluids with Pr ~ 103 - 106. Hence, the question is to find simple scaling laws for isolated rising plumes and apply them to the Earth’s mantle case. In this thesis we study the characteristics of an isolated plume growing in a viscous fluid with constant viscosity. We use both laboratory experiments and numerical models : the visualization techniques give us access to the growing plume temperature and velocity fields, on a 2-D section of the tank, whereas the numerical simulations are axisymmetric finite element simulations that attempt to reproduce the laboratory conditions as closely as possible. We find excellent quantitative agreement between the two fully independent approaches. This is used to derive scaling laws for the dynamics of the plume head and stem, and apply them to the Earth’s case. We further show that for Pr larger than 1000, confinement effects are more important than inertial effects and that plumes dynamics are well described by the approximation if infinite Prandlt number. This is especially true for planetary mantles
Fèvre, Mathieu. « Etudes microstructurales d'oxydes désordonnés et modélisation de leurs propriétés thermiques ». Paris 11, 2003. http://www.theses.fr/2003PA112252.
Texte intégralThis thesis is devoted to the modelling of disordered oxides by Monte Carlo and Molecular Dynamics simulations, in relation with short-range order investigations by neutrons and X-rays diffuse scattering measurements. In zirconia based oxides the kinetics of cations is very slow, whereas it is very fast for anions. These materials are ionic systems. Thus, the largest contribution to the energy of the system is given by long-range electrostatic interactions (1/r). Local order measurements have shown that chemical species are not randomly placed in the crystal structure. Due to the presence of structural vacancies, created by a charge compensation mechanism, lattice distortions are also important. Thus, the chemical ordering is strongly correlated to the atomic displacements. The Non Equilibrium Molecular Dynamics technique has been used to compute the thermal conductivity from atomic configurations. However, this method can only reproduce the movement of particles during several nanoseconds. Therefore, in order to ameliorate the description of micro structural properties and to analyze the influence on the conductivity of the local order, we developed a code based on a Monte Carlo approach, which is adapted to ionic systems and which can describe the strong elastic effects as well as the chemical effects. The short-range order reproduced in the Monte Carlo simulations is very closed to the one measured. We also show that Molecular Dynamics simulations cannot reproduce the correct local order between defects, observed at high doping concentrations. Moreover, the thermal conductivity computations have shown a good agreement with the experimental data. Indeed, the error between simulations and measurements are below 20%. Finally, this study also discusses the influence of the short-range order on the conductivity behaviour using numerical results, diffuse scattering investigations and thermal conductivity measurements
Dallaire, Jonathan. « Thermal conductivity of carbon nanotubes from equilibrium molecular dynamics simulations : sensitivity to modeling and simulation parameters ». Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29017/29017.pdf.
Texte intégralChapitres de livres sur le sujet "Simulations thermiques dynamiques"
BATAILLE, Françoise, Adrien TOUTANT et Dorian DUPUY. « Simulations numériques des écoulements et transferts thermiques des récepteurs solaires ». Dans Le solaire à concentration, 185–220. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9079.ch6.
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