Browsing by Subject "Fluids no newtonians"
Now showing items 1-15 of 15
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3D fluid dynamic study of anaerobic digesters (non-Newtonian case)
(Universitat Politècnica de Catalunya, 2023-07-12)
Bachelor thesis
Open AccessThis thesis presents a fluid dynamics study, carried out with OpenFoam, of the anaerobic digester of sludge from the Manresa Wastewater Treatment Plant. Two-dimensional and three-dimensional geometries are studied, taking ... -
A method for fluid-structure interaction problems with non-Newtonian fluid
(International Centre for Numerical Methods in Engineering (CIMNE), 2018)
Conference lecture
Restricted access - publisher's policyThis paper represents a numerical method to solve fluid-structure interaction (FSI) problems where the fluid exhibits a non-Newtonian Viscoelastic behaviour. Oldroyd-B constitutive equation is used to model Viscoelastic fluid. ... -
CFD study of the flow of a non-Newtonian fluid through a flow splitting geometry
(Universitat Politècnica de Catalunya, 2018-01-18)
Bachelor thesis
Restricted access - confidentiality agreement -
Comparison of the birefringence data obtained by rheo-optical techniques and by a polarized-light high speed camera
(Universitat Politècnica de Catalunya / Nagaoka University of Technology, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decisionThe study of Non-Newtonian fluids has begun relatively recently. The behaviors of those fluids are complex, but their applications are numerous. The non-Newtonian fluids are present in every aspect of life, and they can ... -
El rol de los términos de fricción y cohesión en la modelización bidimensional de fluidos no Newtonianos: avalanchas de nieve densa
(Nature, 2023-10-31)
Article
Open AccessLa modelización numérica de fluidos no Newtonianos (relaves mineros, avalanchas de nieve, etc.) requiere la consideración de modelos reológicos específicos para calcular el esfuerzo cortante. El modelo de fricción de Voellmy ... -
Experimental investigation of the impact of single droplets of non-Newtonian fluid
(Universitat Politècnica de Catalunya / Technishe Universität Darmstadt, 2009)
Master thesis (pre-Bologna period)
Restricted access - author's decisionThis study is devoted to the investigation of impact of a paint drop onto a thin liquid film. In particular the mechanism of bubble entrapment during drop impact will be studied. The study is motivated by the technology ... -
Extension of iber for simulating non–newtonian shallow flows: mine-tailings spill propagation modelling
(Multidisciplinary Digital Publishing Institute (MDPI), 2024-07-18)
Article
Open AccessMine tailings are commonly stored in off-stream reservoirs and are usually composed of water with high concentrations of fine particles (microns). The rupture of a mine-tailings pond pro- motes, depending on the characteristics ... -
Identifying the high entropy characteristic in La-based metallic glasses
(2021-08-05)
Article
Open AccessHigh temperature deformation was probed in a La-based high entropy metallic glass with an evident slow ß relaxation. The correlation between high configurational entropy and high temperature deformation mechanism was ... -
Improvements on the numerical analysis of viscoplastic-type non-Newtonian fluid flows
(2014)
Conference report
Open AccessThe aim of this work is to delve into the numerical analysis of viscoplastic-type non-Newtonian fluid flows with the objective of carrying out more advanced numerical simulations for them. Specifically, improvements in the ... -
Modeling of the ViscoLine Annular Heat Exchanger
(Universitat Politècnica de Catalunya / Lunds Tekniska Högskola, 2010)
Master thesis (pre-Bologna period)
Open AccessThe ViscoLine Annular heat exchanger (VLA) is a four annular concentric tube heat exchanger from Alfa Laval AB designed for processing mainly food products like purees. These type of uids are highly viscous and known as ... -
Modelling of Bingham and Herschel-Bulkley flows with mixed P1/P1 finite elements stabilized with Orthogonal Subgrid Scale
(2016-02)
Article
Open AccessThis paper presents the application of a stabilized mixed pressure/velocity finite element formulation to the solution of viscoplastic non-Newtonian flows. Both Bingham and Herschel–Bulkley models are considered. The detail ... -
Numerical analysis of the transpose diffusive term for viscoplastic-type non-Newtonian fluid flows using a collocated variable arrangement
(2015-05-01)
Article
Open AccessThe aim of this work is to delve into the numerical analysis of viscoplastic-type non-Newtonian fluid flows. Specifically, improvements in the spatial discretization schemes and the temporal integration methods have been ... -
Numerical modelling of dense snow avalanches with a well-balanced scheme based on the 2D shallow water equations
(2023-07-25)
Article
Open AccessA common technique for simulating non–Newtonian fluid dynamics, such as snow avalanches, is to solve the Shallow Water Equations (SWE), together with a rheological model describing the momentum dissipation by shear stresses. ... -
Numerical solutions for the fluid flow and the heat transfer of viscoplastic-type non-Newtonian fluids
(Université de Poitiers, 2012)
Conference report
Restricted access - publisher's policyThe aim of this work is to provide numerical solutions for the fluid flow and the heat transfer generated in closed systems containing viscoplastic-type non-Newtonian fluids. A lid driven cavity (LDC) and a differentially ... -
Three-dimensional direct numerical simulation (dns) Of taylor bubbles rising in non-Newtonian environments
(International Centre for Numerical Methods in Engineering (CIMNE), 2021)
Conference report
Open AccessThree-dimensional numerical simulation of Taylor gas bubbles as primary unites of slug flow patterns rising in non-Newtonian environments is performed in the context of Direct Numerical Simulation (DNS) of the governing ...
