Bibliografías temáticas / Coefficient poisson

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Literatura académica sobre el tema "Coefficient poisson"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 9 de febrero de 2022

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Artículos de revistas sobre el tema "Coefficient poisson"

Meyer, Z., and T. Kozłowski. "Poisson coefficient analysis for organic soil." Proceedings of the Institution of Civil Engineers - Ground Improvement 2, no. 4 (1998): 157–63. http://dx.doi.org/10.1680/gi.1998.020402.

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Novikov, V. V., and K. W. Wojciechowski. "Negative Poisson coefficient of fractal structures." Physics of the Solid State 41, no. 12 (1999): 1970–75. http://dx.doi.org/10.1134/1.1131137.

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Kolupaev, B. S., Yu S. Lipatov, V. I. Nikitchuk, N. A. Bordyuk, and O. M. Voloshin. "Composite materials with negative Poisson coefficient." Journal of Engineering Physics and Thermophysics 69, no. 5 (1996): 542–49. http://dx.doi.org/10.1007/bf02606165.

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SKAL, ASYA S. "RECURRENCE FORMULA FOR ELASTICITY OF GELS UNDER PRESSURE." Modern Physics Letters B 08, no. 17 (1994): 1049–57. http://dx.doi.org/10.1142/s0217984994001059.

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We considered polymeric materials like rubber and gels where the scalar term of elastic energy is dominant. In strained materials with scalar nature of forces, a recurrence formula for internal force density as a sequence of power of the Poisson coefficient is obtained: [Formula: see text], where ν(r) and Y(r) are local values of the Poisson and Young coefficients, Y1 is the Young coefficient at the boundary of the sample, and ey and ez are unit vectors perpendicular to the external pressure Px. This formula gives contributions to all orders of the Poisson coefficient to the internal force den

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Bhuiyan, L. B. "Structure and thermodynamics in the linear modified Poisson-Boltzmann theories in restricted primitive model electrolytes." Condensed Matter Physics 24, no. 2 (2021): 23801. http://dx.doi.org/10.5488/cmp.24.23801.

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Structure and thermodynamics in restricted primitive model electrolytes are examined using three recently developed versions of a linear form of the modified Poisson-Boltzmann equation. Analytical expressions for the osmotic coefficient and the electrical part of the mean activity coefficient are obtained and the results for the osmotic and the mean activity coefficients are compared with that from the more established mean spherical approximation, symmetric Poisson-Boltzmann, modified Poisson-Boltzmann theories, and available Monte Carlo simulation results. The linear theories predict the the

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Li, Xueyang, Aiguo Xiao, and Dongling Wang. "Generating Function Methods for Coefficient-Varying Generalized Hamiltonian Systems." Advances in Applied Mathematics and Mechanics 6, no. 01 (2014): 87–106. http://dx.doi.org/10.4208/aamm.12-m12112.

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AbstractThe generating function methods have been applied successfully to generalized Hamiltonian systems with constant or invertible Poisson-structure matrices. In this paper, we extend these results and present the generating function methods preserving the Poisson structures for generalized Hamiltonian systems with general variable Poisson-structure matrices. In particular, some obtained Poisson schemes are applied efficiently to some dynamical systems which can be written into generalized Hamiltonian systems (such as generalized Lotka-Volterra systems, Robbins equations and so on).

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Kaengthong, Nattacha, and Uthumporn Domthong. "Modified Regression Correlation Coefficient for Poisson Regression Model." Journal of Physics: Conference Series 890 (September 2017): 012155. http://dx.doi.org/10.1088/1742-6596/890/1/012155.

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Park, Taeyoung, and Seonghyun Jeong. "Analysis of Poisson varying-coefficient models with autoregression." Statistics 52, no. 1 (2017): 34–49. http://dx.doi.org/10.1080/02331888.2017.1353514.

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Takahashi, Akihito, and Takeshi Kurosawa. "Regression correlation coefficient for a Poisson regression model." Computational Statistics & Data Analysis 98 (June 2016): 71–78. http://dx.doi.org/10.1016/j.csda.2015.12.012.

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Wang, Jichao, and Ting Yu. "Existence and Concentration Behavior of Solutions of the Critical Schrödinger–Poisson Equation in R3." Mathematics 9, no. 5 (2021): 464. http://dx.doi.org/10.3390/math9050464.

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In this paper, we study the singularly perturbed problem for the Schrödinger–Poisson equation with critical growth. When the perturbed coefficient is small, we establish the relationship between the number of solutions and the profiles of the coefficients. Furthermore, without any restriction on the perturbed coefficient, we obtain a different concentration phenomenon. Besides, we obtain an existence result.

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Tesis sobre el tema "Coefficient poisson"

Rivera, Constantino Rigoberto. "Détermination des propriétés mécaniques des sables et des argiles en régime dynamique et cyclique aux faibles déformations." Châtenay-Malabry, Ecole centrale de Paris, 1988. http://www.theses.fr/1988ECAP0075.

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Étude dans le domaine des faibles déformations (10**(-5) pour les essais dynamiques, et 10**(-6) a 10**(-3) pour les cycliques), a travers trois paramètres principaux: module de Young, coefficient de poisson et coefficient d'amortissement. Rôle de la contrainte moyenne, indice des vides, saturation, histoire des contraintes. Pour argiles remaniées normalement consolidées, corrélation entre module de Young, limite liquide, indice de plasticité et coefficient de compressibilité. Comparaison entre régime dynamique et cyclique

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Homsi, Mahmoud. "Contribution à l'étude des propriétés mécaniques des sols en petites déformations à l'essai triaxial." Châtenay-Malabry, Ecole centrale de Paris, 1986. http://www.theses.fr/1986ECAP0009.

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Étude des séismes où les déformations sont très faibles pour le calcul de certains ouvrages de génie civil. Notions d'élasticité et lois de contact de Hertz et constantes élastiques pour différents types d'assemblage de billes de même diamètre afin de préciser les différents paramètres que les influents. Représentation par des modèles mathématiques du comportement des matériaux soumis aux charges cycliques, modèles définissant la relation entre le chargement et la réponse correspondante. Présentation de certains modèles souvent utilisés. Résultats obtenus sur divers matériaux (bille de verre,

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Mohajeri, Arash. "Effective diffusion coefficients for charged porous materials based on micro-scale analyses." Connect to thesis, 2009. http://repository.unimelb.edu.au/10187/5780.

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Estimation of effective diffusion coefficients is essential to be able to describe the diffusive transport of solutes in porous media. It has been shown in theory that in the case of uncharged porous materials the effective diffusion coefficient of solutes is a function of the pore morphology of the material and can be described by their tortuosity (tensor). To estimate the apparent diffusion coefficients, the values of tortuosity and porosity should be known first. In contrast with calculation of porosity, which can be easily obtained, estimation of tortuosity is intricate, particularly with

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Hilaire, Adrien. "Etude des déformations différées des bétons en compression et en traction, du jeune au long terme : application aux enceintes de confinement." Thesis, Cachan, Ecole normale supérieure, 2014. http://www.theses.fr/2014DENS0048/document.

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Ce travail a pour but d'apporter des éléments de connaissance sur le comportement des enceintes de confinement des centrales nucléaires françaises. L'aptitude au confinement de ce type de structures est garantie par la faible perméabilité du béton. En cas d'accident, le béton est protégé de la fissuration par la compression biaxiale assurée par les câbles de précontrainte orthoradiaux et verticaux. Dès lors, il s'agit de vérifier deux points principaux : premièrement, le niveau de précontrainte doit rester suffisamment élevé pour équilibrer les contraintes de traction induites lors d'un accide

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Diatta, Yaya. "Corrélations entre le module d'élasticité le module de rupture, le coefficient de Poisson et la résistance en compression simple des bétons à très haute résistance (60 - 120 MPa)." Mémoire, Université de Sherbrooke, 1987. http://hdl.handle.net/11143/11964.

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Les objectifs visés dans ce travail sont de: i) Concevoir et fabriquer des bétons à très haute résistance, ayant une résistance en compression simple comprise entre 60 et 120 MPa, En effet, on dispose de très peu de données scientifiques sur les caractéristiques des bétons à très haute résistance dans cette plage de résistance. ii) Échantillonner ces différents bétons pour déterminer: 1) leur résistance en compression simple (f’c) à ld, *7d, 28d, 91d et1 an;2) leur module d'élasticité;3) leur résistance en flexion (f’r à 7d, 28d et 91 d. iii) Essayer d'établir des corrélations entre:1) la rési

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Azoti, Wiyao Leleng. "Conception et amélioration des propriétés amortissantes des composites auxétiques basés sur l'utilisation des outils de la micromécanique." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0218/document.

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La conception de matériaux composites à particules, fibres ou structures sandwichs, faits de renforts auxétiques en vue de l'amélioration des propriétés amortissantes, est analysée dans cette thèse. Pour une telle analyse, le comportement auxétique décrivant un coefficient de Poisson négatif nécessite d'être compris tant d'un point de vue « effet structure » que « effet matériau ». Ce dernier point c'est-à-dire l'« effet matériau », faisant référence à la forme, aux orientations et différentes propriétés des phases constitutives du matériau, reste peu documenté dans la littérature scientifique

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Nguyen, Minh-Duc. "Modélisation numérique discrète des matériaux bitumeux." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSET003/document.

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Les enrobés bitumineux ont été utilisés habituellement dans des constructions routières et récemment sous les ballasts des ferroviaires. Sa grande rigidité aux températures relativement basses de l’ambiance et à haute fréquence explique son application répandue en Europe du nord. Ce matériau a été étudié au niveau global par à la fois des essais empiriques, expérimentaux et des approches analytiques. Pourtant, l’enrobé bitumineux possède un structure interne hétérogène et complexe qui peut-être engendrer des comportements complexe. Les analyses au niveau local permettent alors de compléter les

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Baudet, Vincent. "Modélisation et simulation paramétrable d'objets déformables.Application aux traitements des cancers pulmonaires." Phd thesis, Université Claude Bernard - Lyon I, 2006. http://tel.archives-ouvertes.fr/tel-00279986.

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Les traitements curatifs des cancers par irradiation avec des rayons ionisants tels que la radiothérapie conformationnelle et l'hadronthérapie sont plannifiés avec des marges d'erreur qui prennent en compte, entre autres, les statistiques de mouvements des tumeurs. En partenariat avec le Centre anticancéreux Léon Bérard de Lyon et dans le projet ETOILE, nous proposons de rechercher des modèles de simulations des objets déformables qui prendraient en considération, en plus de la géométrie issue directement de l'imagerie médicale, les paramètres physiologiques mesurés sur les patient

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Hubert, Cédric. "Stratégie de modélisation de la séquence cisaillage-laminage en mise en forme à froid des aciers." Valenciennes, 2010. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/c85a81ec-d167-45fc-89a7-92183c8d0a18.

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Le défaut de rives en dents de scie sont des excroissances de matière qui se développent durant le laminage à froid des bobines d’acier, avec comme initiateur le procédé de cisaillage des rives. Ces travaux se concentrent sur ces deux phases de la production des bobines d’acier, dans le but de comprendre les phénomènes qui conduisent à l’initiation de ce défaut. Deux campagnes expérimentales sont menées sur des éprouvettes de rives cisaillées. L’influence de leur écrouissage initial et des conditions de contact bande/cylindre est étudiée par le biais de l’Upsetting Rolling Test (URT). Ces deux

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Zhang, Liguo. "Effet de la sonication sur les propriétés mécaniques et le relargage de billes et capsules d'alginate." Compiègne, 2012. http://www.theses.fr/2012COMP1994.

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Nous avons étudié l’effet d’une stimulation ultrasonore sur les propriétés mécaniques et le relargage de billes et capsules d’alginate. Les capsules sont fabriquées avec le même d’extrusion que les billes, mais selon un nouveau procédé mis au point. Elles sont constituées d’un fortement visqueux entouré d’une mince membrane hyperélastique. En utilisant une technique ultrasonore de pulse-écho, nous avons d’abord montré que le gel d’alginate est quasiment incompressible et puis il a ainsi un coefficient de Poisson très proche de 0. 5. Le module de cisaillement des billes et capsules d’alginate a

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Libros sobre el tema "Coefficient poisson"

Newman, Mark. Random graphs. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805090.003.0011.

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An introduction to the mathematics of the Poisson random graph, the simplest model of a random network. The chapter starts with a definition of the model, followed by derivations of basic properties like the mean degree, degree distribution, and clustering coefficient. This is followed with a detailed derivation of the large-scale structural properties of random graphs, including the position of the phase transition at which a giant component appears, the size of the giant component, the average size of the small components, and the expected diameter of the network. The chapter ends with a dis

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Kittidacha, Witoon. Diffusion coefficients of biocides in supercritical carbon dioxide. 1999.

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Elwood, Mark. Confounding. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199682898.003.0007.

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This chapter gives the definition of confounding, a central issue in epidemiology and its dependence on two associations, with exposure and with outcome. It explains confounding in trials, cohort and case-control studies, and Simpson’s paradox. It explains the five methods of controlling confounding: restriction, randomisation, stratification, matching and multivariate methods. For randomised trials, the limits of randomisation, residual confounding, pre-stratification, intention-to-treat, management and explanatory trials, pragmatic trials are explained. It shows the Mantel–Haenszel risk rati

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Capítulos de libros sobre el tema "Coefficient poisson"

Jevtić, Miroljub, Dragan Vukotić, and Miloš Arsenović. "The Poisson Integral." In Taylor Coefficients and Coefficient Multipliers of Hardy and Bergman-Type Spaces. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45644-7_2.

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Barcelo, Tomeu. "On the Poisson Kernel for Nondivergence Elliptic Equations with Continuous Coefficients." In Partial Differential Equations with Minimal Smoothness and Applications. Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2898-1_6.

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de Miranda, José Carlos Simon. "Probability Density Functions of the Empirical Wavelet Coefficients of Multidimensional Poisson Intensities." In Contributions to Statistics. Physica-Verlag HD, 2008. http://dx.doi.org/10.1007/978-3-7908-2062-1_35.

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Aoki, Masanao. "Coefficients of Variations in Analysis of Macro-policy Effects: An Example of Two-Parameter Poisson-Dirichlet Distributions." In Lecture Notes in Control and Information Sciences. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-73570-0_1.

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Vidybida, Alexander, and Kseniya Kravchuk. "Output Stream of Binding Neuron with Feedback." In Knowledge-Based Intelligent System Advancements. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-61692-811-7.ch010.

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The binding neuron (BN) output firing statistics is considered. The neuron is driven externally by the Poisson stream of intensity <img src="http://www.igi-global.com/Images/Symbols/m01.gif" />. The influence of the feedback, which conveys every output impulse to the input with time delay <img src="http://www.igi-global.com/Images/Symbols/m02.gif" />, on the statistics of BN's output spikes is considered. The resulting output stream is not Poissonian, and we look for its interspike intervals (ISI) distribution for the case of BN, BN with instantaneous, <img src="http://www.igi-global.com/Images/Symbols/m03.gif" />, and delayed, <img src="http://www.igi-global.com/Images/Symbols/m04.gif" />, feedback. For the BN with threshold 2 an exact mathematical expressions as functions of <img src="http://www.igi-global.com/Images/Symbols/m05.gif" />, <img src="http://www.igi-global.com/Images/Symbols/m06.gif" /> and BN's internal memory, <img src="http://www.igi-global.com/Images/Symbols/m07.gif" /> are derived for the ISI distribution, output intensity and ISI coefficient of variation. For higher thresholds these quantities are found numerically. The distributions found for the case of instantaneous feedback include jumps and derivative discontinuities and differ essentially from those obtained for BN without feedback. Statistics of a neuron with delayed feedback has remarkable peculiarities as compared to the case of <img src="http://www.igi-global.com/Images/Symbols/m08.gif" />. ISI distributions, found for delayed feedback, are characterized with jumps, derivative discontinuities and include singularity of Dirac's <img src="http://www.igi-global.com/Images/Symbols/m09.gif" />-function type. The obtained ISI coefficient of variation is a unimodal function of input intensity, with the maximum value considerably bigger than unity. It is concluded that delayed feedback presence can radically alter neuronal output firing statistics.

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Ari, Yakup. "Continuous Autoregressive Moving Average Models." In Methodologies and Applications of Computational Statistics for Machine Intelligence. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7701-1.ch007.

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The financial time series have a high frequency and the difference between their observations is not regular. Therefore, continuous models can be used instead of discrete-time series models. The purpose of this chapter is to define Lévy-driven continuous autoregressive moving average (CARMA) models and their applications. The CARMA model is an explicit solution to stochastic differential equations, and also, it is analogue to the discrete ARMA models. In order to form a basis for CARMA processes, the structures of discrete-time processes models are examined. Then stochastic differential equations, Lévy processes, compound Poisson processes, and variance gamma processes are defined. Finally, the parameter estimation of CARMA(2,1) is discussed as an example. The most common method for the parameter estimation of the CARMA process is the pseudo maximum likelihood estimation (PMLE) method by mapping the ARMA coefficients to the corresponding estimates of the CARMA coefficients. Furthermore, a simulation study and a real data application are given as examples.

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S. Kulkarni, Mrudula. "Mechanical Properties and Elasticity Model for Bovine Hard Tissue." In Bovine Science [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98410.

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This chapter aims at establishing engineering material properties of bovine hard tissue cut out of long bone. The study and design of implants, medical devices, and their bone material necessitate the knowledge of mechanical properties of bone to be evaluated. Braces or steel plates are used as fixation devices in animals who are treated for the fracture to bone or cracked bone. Braces or steel plates are fixed to the bone by rods and screws. For checking the stability of these inserted metallic parts, they have to be compatible with bone. The metal and bone form composite action for the load transfer mechanism. To ensure proper biomechanics and design of these inserts and accessories, we need to know the elastic properties of bone. This chapter establishes the modulus of elasticity, poisons ratio of Bovine femur bone. The experimental study establishes the orthotropic behavior of Bovidae femur bone. This experimental research provides comprehensive mechanical properties of Bovidae femur bone, through series of mechanical tests. By performing compression tests on a bone specimen, stress, strain, elastic modulus, poison’s ratio, and yielding point of bone are established. The bovine long bone exhibits orthotropic or transversely isotropic nature of femur bone as expected. The data presented here is for samples derived from goat and water buffalo. The solid mechanics approach using stiffness matrix is adopted to establish elastic constants. The data of elastic constants, compliance, and stiffness coefficients obtained can be used for finite element analysis to simulate stability of composite, femur bone, and metallic fixation. The values of compression strength, Young’s modulus, Poisson’s ratio, and shear modulus are higher for water buffalo male than that of female showing gender difference. This may be attributed to lower bone density in females due to hormone secretion.

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"Shark Nursery Grounds of the Gulf of Mexico and the East Coast Waters of the United States." In Shark Nursery Grounds of the Gulf of Mexico and the East Coast Waters of the United States, edited by GLENN R. PARSONS and ERIC R. HOFFMAYER. American Fisheries Society, 2007. http://dx.doi.org/10.47886/9781888569810.ch19.

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Abstract.—From October 1997 to September 2000, we conducted a survey of shark nursery grounds in the northern Gulf of Mexico extending from Bay St. Louis, Mississippi to Perdido Bay, Alabama. The objectives of the survey were to identify shark pupping/nursery grounds, determine their extent, and characterize the environmental conditions prevalent. Collections were made from March to October of each year with at least four sites sampled each month, two sites in Mississippi waters and two sites in Alabama waters. Collections were made using a gill net fished from 1500 until 2200 hours each day. A total of 100 collections were made during the study, resulting in the capture of more than 2,200 sharks. Young-of-the-year and juvenile sharks were collected from many areas in the Mississippi Sound with many sharks taken around Cat, Ship, Horn, Petit Bois, Round, and Dauphin islands. Shark populations along the Mississippi and Alabama gulf coasts are dominated by three species, the Atlantic sharpnose shark Rhizoprionodon terraenovae, the blacktip shark Carcharhinus limbatus, and the finetooth shark C. isodon. Other species captured included the bull shark C. leucas, the scalloped hammerhead Sphyrna lewini, the bonnethead S. tiburo, the spinner shark C. brevipinna, the blacknose shark C. acronotus, and the sandbar shark C. plumbeus. We used analysis of variance to compare the environmental factors present at sites where sharks were present with those at sites where sharks were not present and found significant differences in surface and bottom dissolved oxygen when Atlantic sharpnose sharks were present, surface and bottom temperature and surface dissolved oxygen when finetooth sharks were present, and surface and bottom temperature when blacktip sharks were present. We used unweighted poisson regression to examine the effect of environmental factors on catch per unit effort (CPUE) (sharks 100 m net–1 h–1) and found that surface salinity significantly altered catch of Atlantic sharpnose sharks, surface and bottom temperature and surface dissolved oxygen significantly altered finetooth shark CPUE, and both surface and bottom temperature and dissolved oxygen altered blacktip shark CPUE. To consider interspecific interactions between the three dominant species, we used the Yule coefficient of association and found that young of the year of the three most common species were significantly, positively associated. Future studies of shark abundance and distribution should consider the interactions between co-occurring species. The Mississippi Sound, associated barrier islands, and the lower reaches of the Mobile Bay are important nursery grounds for several shark species, particularly blacktip, Atlantic sharpnose, and finetooth sharks.

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Anand, Lallit, and Sanjay Govindjee. "Constitutive equations for linear elasticity." In Continuum Mechanics of Solids. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198864721.003.0007.

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In this chapter the constitutive equations for linear elasticity in which the free energy is a quadratic function, and the stress a linear function, of the small strain tensor are introduced. In general, the fourth-order linear elasticity tensor which relates the stress to the strain has twenty-one independent elastic constants. Most solids, however, exhibit some symmetry, the effect of which is to reduce the number of elastic constants. Forms of the linear elasticity tensor for some anisotropic materials, as well as the widely-used forms for an isotropic material, which has only two independent elastic constants, are discussed. The engineering elastic moduli known as the shear modulus and the bulk modulus, as well as the Young’s modulus and the Poisson’s ratio for isotropic linear elastic materials are introduced. Considerations of temperature changes necessitate the introduction of another tensorial material property called the thermal expansion tensor, which for an isotropic material reduces to a scalar coefficient of thermal expansion.

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Actas de conferencias sobre el tema "Coefficient poisson"

Bozhinova-Haapanen, Assia. "STUDIES ON THE POISSON COEFFICIENT OF PLIOCENE CLAYS ON THE TERRITORY OF SOFIA CITY." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2015/b12/s2.104.

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Wu, Enboa, Albert J. D. Yang, Ching-An Shao, and C. S. Yen. "Determination of Mechanical Properties of Thin Film on Silicon Wafer." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55479.

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Nondestructive determination of Young’s modulus, coefficient of thermal expansion, Poisson ratio, and thickness of a thin film has long been a difficult but important issue as the film of micrometer order thick might behave differently from that in the bulk state. In this paper, we have successfully demonstrated the capability of determining all these four parameters at one time. This novel method includes use of the digital phase-shifting reflection moire´ (DPRM) technique to record the slope of wafer warpage under temperature drop condition. In the experiment, 1-um thick aluminum was sputter

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Charpin, L., Y. Le Pape, E. Coustabeau, B. Masson, and J. Montalvo. "EDF Study of 10-Year Concrete Creep under Unidirectional and Biaxial Loading: Evolution of the Poisson Coefficient under Sealed and Unsealed Conditions." In 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures. American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479346.163.

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Tang, Gongyue, Chun Yang, Cheekiong Chai, and Haiqing Gong. "Electroosmotic Flow and Mass Species Transport in a Microcapillary Under Influences of Joule Heating." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45124.

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This study presents a numerical analysis of Joule heating effect on the electroosmotic flow and species transport, which has a direct application in the capillary electrophoresis based BioChip technology. A rigorous mathematic model for describing the Joule heating in an electroosmotic flow including Poisson-Boltzmann equation, modified Navier-Stokers equations and energy equation is developed. All these equations are coupled together through the temperature-dependent parameters. By numerically solving aforementioned equations simultaneously, the electroosmotic flow field and the temperature d

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Lankarani, Hamid M., and Murthy Ayyagari. "A Poisson-Based Formulation for Frictional Impact Analysis of Open and Closed-Loop Multibody Mechanical Systems." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8216.

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Abstract Frictional impact analysis requires a friction model capable of correct detection of all possible impact modes such as sliding, sticking, and reverse sliding. Conventional methods for frictional impact analysis have either shown energy gain or not developed for jointed mechanical system, and especially not for closed-chain multibody systems. This paper presents a general formulation for the analysis of impact problems with friction in both open- and closed-loop multibody mechanical systems. The Poisson’s hypothesis is used for the definition of the coefficient of restitution, and thus

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Hobson, G. V., and B. Lakshminarayana. "Prediction of Cascade Performance Using an Incompressible Navier-Stokes Technique." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-261.

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A fully elliptic, control volume solution of the two-dimensional incompressible Navier-Stokes equations for the prediction of cascade performance over a wide incidence range is presented in this paper. The numerical technique is based on a new pressure substitution method. A Poisson equation is derived from the pressure weighted substitution of the full momentum equations into the continuity equation. The analysis of a double circular arc compressor cascade is presented, and the results are compared with the available experimental data at various incidence angles. Good agreement is obtained fo

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Fard, F. N., and B. Lessani. "A Time-Accurate Projection Method for Low-Mach Number Variable Density Flows in Curvilinear Grids." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78327.

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A time-accurate numerical algorithm is proposed for low Mach number variable density flows in curvilinear coordinate systems. In order to increase the stability of the method, a predictor-corrector time integration scheme, coupled with the projection method, is employed. The projection method results in a constant-coefficient Poisson equation for the pressure in both the predictor and corrector steps. The continuity equation is fully satisfied at each step. To prevent the pressure odd-even decoupling typically encountered in collocated grids, a flux interpolation technique is developed. The sp

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Jamaati, Jafar, Hamid Niazmand, and Metin Renksizbulut. "Analytical Treatment of Heat Transfer in Electrokinetic Flows." In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30778.

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This paper investigates the effects of velocity slip in the presence of an electric double-layer on fluid flow and heat transfer in a parallel plate hydrophobic microchannel. The electric potential filed is determined through the Poisson-Boltzmann equation together with the Debye-Hu¨ckel (D-H) approximation, while the velocity field is obtained by solving the Navier-Stokes equations under fully developed conditions. In most previous studies, zeta-potential has been considered as an independent variable for the analysis of induced voltage. However, experimental findings show that in electrokine

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Sharify, Esmatullah Maiwand, Norio Arai, and Shun Takahashi. "Fluid-Structure Interaction of Circular Cylinders With Elastic Surface." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-08014.

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This contribution presents the numerical study of Fluid Structure Interaction (FSI) problems and discusses the oscillatory characteristics of the elastic bodies and flowfield around circular cylinders. This paper deals with the motion of the elastic body and the flowfield using computational fluid dynamics (CFD) in two-dimensional and three-dimensional simulations. The governing equations are the continuity equation and incompressible Navier-Stokes equations. These equations are solved by MAC (Marker and cell) method by using Poisson equation for pressure component and momentum equations for v

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Alsalti-Baldellou, À., F. Trias, A. Gorobets, and A. Oliva. "On Preconditioning Variable Poisson Equation with Extreme Contrasts in the Coefficients." In 14th WCCM-ECCOMAS Congress. CIMNE, 2021. http://dx.doi.org/10.23967/wccm-eccomas.2020.254.

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Informes sobre el tema "Coefficient poisson"

DeLacy, Brendan G., and Janon F. Embury. Infrared Extinction Coefficients of Aerosolized Conductive Flake Powders and Flake Suspensions having a Zero-Truncated Poisson Size Distribution. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada570956.

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