233 research outputs found
Comparison of methods for curvature estimation from volume fractions
This paper evaluates and compares the accuracy and robustness of curvature
estimation methods for three-dimensional interfaces represented implicitly by
discrete volume fractions on a Cartesian mesh. The height function (HF) method
is compared to three paraboloid fitting methods: fitting to the piecewise
linear interface reconstruction centroids (PC), fitting to the piecewise linear
interface reconstruction volumetrically (PV), and volumetrically fitting (VF)
the paraboloid directly to the volume fraction field. The numerical studies
presented in this work find that while the curvature error from the VF method
converges with second-order accuracy as with the HF method for static
interfaces represented by exact volume fractions, the PV method best balances
low curvature errors with low computational cost for dynamic interfaces when
the interface reconstruction and advection are coupled to a two-phase
Navier-Stokes solver
A brave new building : réédition expérimentale et design d'information
Dans ce mémoire, je présente le réseautage de trois ouvrages textuels : ManiÚres de faire des mondes du philosophe Nelson Goodman, A Brave New World du romancier et essayiste Aldous Huxley, et Envisioning Information du théoricien en design d'information Edward Tufte. Ce travail me sert de base théorique à la réalisation de mon projet de maßtrise qui consiste à réorganiser la structure d'une oeuvre de création littéraire de façon visuelle et spatiale. Pour ce faire, je recours à certains principes de visualisation de l'information relevant du design d'information. Le passage du roman en sa structure réorganisée se décline en quatre versions qui correspondent à l'exploration de formes artistiques distinctes : la base de données et le livre d'artiste, l'affiche et l'installation. Il en résulte la transformation du roman en une traduction expérimentale schématisée, dans une pratique se situant entre le design d'édition et le design d'information de recherche
Large-Eddy Simulation of Turbulent Reacting Flows
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76635/1/AIAA-2008-604-899.pd
A computational study of the effects of multiphase dynamics in catalytic upgrading of biomass pyrolysis vapor
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/145281/1/aic16184.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/145281/2/aic16184_am.pd
DĂ©velopper des compĂ©tences professionnelles en formation initiale Ă lâenseignement prĂ©scolaire et primaire : regard sur lâorganisation des programmes en contexte quĂ©bĂ©cois
En rĂ©ponse Ă une opĂ©ration de rĂ©vision des programmes quĂ©bĂ©cois de formation Ă lâenseignement prĂ©scolaire et primaire, cet article examine les incidences des nouâ velles orientations visant le dĂ©veloppement de compĂ©tences professionnelles sur la structure des programmes. Une analyse des descripteurs de cours offerts dans les douze universitĂ©s quĂ©bĂ©coises rĂ©vĂšlent que, en dĂ©pit des appels Ă une dĂ©fragmentaâ tion des formations, la structure des programmes continue dâadopter une forme assez morcelĂ©e et organisĂ©e en fonction de domaines disciplinaires. Les rĂ©sultats montrent des variations importantes dâune institution Ă lâautre quant au poids des diffĂ©rents types dâactivitĂ©s. Ils rĂ©vĂšlent que plusieurs cours axĂ©s sur lâintervention affichent une forme de mĂ©tissage des contenus, plus proches dâune logique de dĂ©veloppement de compĂ©tences. MotsâclĂ©s: formation Ă lâenseignement, enseignement supĂ©rieur, programme, compĂ©tences In response to a review of Quebec teacher education programs for kindergarten and elementary schools, this article examines the impact on program structure of new guidelines emphasizing the development of professional competency. An analysis of course descriptions in 12 Quebec universities shows that, in spite of calls for les fragâ mentation, the program structure is still divided into small components and organâ ized according to discipline. The results show major variations across institutions in the weighting on various kinds of activities and reveal that many courses focussing on intervention show a kind of content hybridization that is closer to the logic of comâ petency development.Key words: teacher education, higher education, program, competencies
Direct comparison of EulerianâEulerian and EulerianâLagrangian simulations for particleâladen vertical channel flow
Particleâladen flows in a vertical channel were simulated using an EulerianâEulerian, Anisotropic Gaussian (EEâAG) model. Two sets of cases varying the overall mass loading were done using particle sizes corresponding to either a large or small Stokes number. Primary and turbulent statistics were extracted from these results and compared with counterparts collected from EulerianâLagrangian (EL) simulations. The statistics collected from the small Stokes number particle cases correspond well between the two models, with the EEâAG model replicating the transition observed using the EL model from shearâinduced turbulence to relaminarization to clusterâinduced turbulence as the mass loading increased. The EEâAG model was able to capture the behavior of the EL simulations only at the largest particle concentrations using the large Stokes particles. This is due to the limitations involved with employing a particleâphase Eulerian model (as opposed to a Lagrangian representation) for a spatially intermittent system that has a low particle number concentration.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/155968/1/aic16230_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/155968/2/aic16230.pd
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