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An adaptive finite element method for viscoplastic fluid flows in pipes
The numerical modelling of the fully developed Poiseuille flow of a yield stress fluid in a square section is presented. The dead regions in outer corners and the plug region in the center areExpand
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An adaptive finite element method for Bingham fluid flows around a cylinder
The numerical modeling of the steady flow of a yield stress fluid around a cylinder is presented. Three categories of yielded regions are exhibited. The asymptotic behavior when the cylinder getsExpand
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An adaptive finite element method for viscoplastic flows in a square pipe with stick-slip at the wall
This paper presents the numerical solution of non-linear yield stress phenomena by using a new mixed anisotropic auto-adaptive finite element method. The Poiseuille flow of a Bingham fluid with slipExpand
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Concrete Mixing Kinetics by Means of Power Measurement
This paper introduces a new model for concrete mixing kinetics. The model defines five successive stages through which the mixture characteristics change. It is also shown that the time-variation ofExpand
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Résolution numérique d'écoulements à effets de seuil par éléments finis mixtes et adaptation de maillage
Ce travail decrit une methode numerique pour un probleme d'inequations variationnelles, avec une analyse de convergence suivie d'applications concretes. Les inequations sont issues de loisExpand
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Stick-slip transition capturing by using an adaptive finite element method
The numerical modeling of the fully developed Poiseuille flow of a Newtonian fluid in a square section with slip yield boundary condition at the wall is presented. The stick regions in outer cornersExpand
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Discrete simulation of dense flows of polyhedral grains down a rough inclined plane.
The influence of grain angularity on the properties of dense flows down a rough inclined plane are investigated. Three-dimensional numerical simulations using the nonsmooth contact dynamics methodExpand
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Analysis of a Regularized Bingham Model with Pressure-Dependent Yield Stress
The goal of this article is to provide some essential results for the solution of a regularized viscoplastic frictional flow model adapted from the extensive mathematical analysis of the BinghamExpand
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Estimations d'erreur pour un fluide viscoplastique par éléments finis Pk et maillages adaptés
Resume Nous montrons une estimation a priori de l'erreur en O (h k | ln h| ) , en utilisant des maillages adaptes et des methodes d'elements finis de type Pk , lors de l'approximation de l'ecoulementExpand
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Simulation numérique d'un écoulement viscoplastique frictionnel autour d'un cylindre circulaire
The aim of this paper is to study the flow of a frictional viscoplastic material around a circular cylinder. A Frictional Viscoplastic Law FVL(p0) for this purpose is described and discussed. It is aExpand