Exploració per tema "Àrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids"
Ara es mostren els items 1-20 de 129
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2D particle contact-based meshfree method in CDEM and its application in geotechnical problems
(2015)
Article
Accés restringit per política de l'editorialContinuum-based discrete element method is an explicit numerical method, which is a combination of block discrete element method (DEM) and FEM. When simulating large deformation problems, such as cutting, blasting, water-like ... -
A contribution to adaptive numerical solution of compressible flow problems
(International Centre for Numerical Methods in Engineering (CIMNE), 1996)
Llibre
Accés obertThe monograph presents recent developments on the solution of high speed compressible flow problems using finite element and finite point (meshless) methods with adaptive refinement, techniques. This work treats two of the ... -
A discontinuous Nitsche-based finite element formulation for the imposition of the Navier-slip condition over embedded volumeless geometries
(2021-09)
Article
Accés obertThis work describes a novel formulation for the simulation of incompressible Navier–Stokes problems involving nonconforming discretizations of membrane-like bodies. The new proposal relies on the use of a modified finite ... -
A finite point method for adaptive-three-dimensional compressible flow calculations
(2009-07-30)
Article
Accés obertThe finite point method (FPM) is a meshless technique, which is based on both, a weighted least-squares numerical approximation on local clouds of points and a collocation technique which allows obtaining the discrete ... -
A general stabilized formulation for incompressible fluid flow using finite calculus and the finite element method
(CIMNE, 2003-11)
Capítol de llibre
Accés restringit per política de l'editorialWe present a general formulation for incompressible fluid flow analysis using the finite element method (FEM). The necessary stabilization for dealing with convective effects and the incompressibility condition are introduced ... -
A Lagrangian nodal integration method for free-surface fluid flows
(2020-04)
Article
Accés obertWe present a Lagrangian nodal integration method for the simulation of Newtonian and non-Newtonian free-surface fluid flows. The proposed nodal Lagrangian method uses a finite element mesh to discretize the computational ... -
A locally extended finite element method for the simulation of multi-fluid flows using the Particle Level Set method
(2015-09)
Article
Accés obertThe simulation of immiscible two-phase flows on Eulerian meshes requires the use of special techniques to guarantee a sharp definition of the evolving fluid interface. This work describes the combination of two distinct ... -
A novel method to determine the discharge coefficient of constant section nozzles under compressible dynamic flow conditions
(2019-07)
Article
Accés restringit per política de l'editorialThe present paper introduces a novel transient experimental method employed to determine the discharge coefficient of constant section nozzles of small diameters of 1 to 3 mm and with a length/diameter ratio of around one. ... -
A pseudo-compressible variational multiscale solver for turbulent incompressible flows
(2016-12)
Article
Accés obertIn this work, we design an explicit time-stepping solver for the simulation of the incompressible turbulent flow through the combination of VMS methods and artificial compressibility. We evaluate the effect of the artificial ... -
A pseudo-DNS method for the simulation of incompressible fluid flows with instabilities at different scale
(Springer, 2020-01)
Article
Accés obertIn this work, a new model for the analysis of incompressible fluid flows with massive instabilities at different scales is presented. It relies on resolving all the instabilities at all scales without any additional model, ... -
A semi-analytical model for droplet dynamics on the GDL surface of a PEFC electrode
(2015-04)
Article
Accés obertWater management is one of the key factors in Proton Exchange Fuel Cell (PEFC) performance. The water produced within the fuel cell is evacuated through the gas channels, but at high current densities water can block the ... -
A semi-explicit multi-step method for solving incompressible navier-stokes equations
(Multidisciplinary Digital Publishing Institute, 2018-01)
Article
Accés obertThe fractional step method is a technique that results in a computationally-efficient implementation of Navier–Stokes solvers. In the finite element-based models, it is often applied in conjunction with implicit time ... -
A theoretical and experimental study of horizontal air-water two-phase flow with a spool piece
(Universitat Politècnica de Catalunya / Politecnico di Torino, 2010)
Projecte/Treball Final de Carrera
Accés obertDesarrollo de instrumentación especializada y desarrollo de algoritmos especiales capaces de interpertar las señales de medida del flujo bifásico. Combinaciones de diferentes instrumentos (Spool Piece) serán analizados y ... -
A theoretical and experimental study of horizontal air-water. Two-phase flow with a spool piece
(Universitat Politècnica de Catalunya / Politecnico di Torino, 2010)
Projecte/Treball Final de Carrera
Accés obertThis Master Thesis has been carried out by Luis Mora Vallejo and Jacobo Zegrí Reiriz. We are both two Spanish students who are studying Engineering in the Universitat Politècnica de Catalunya (UPC) in the engineer‟s school ... -
A two-step monolithic method for efficient simulation of incompressible flows
(2014-04)
Article
Accés restringit per política de l'editorialWe propose a simple technique for improving computational the e ciency of monolithic velocity-pressure solvers for incompressible ow problems. The idea consists in solving the discrete non-linear system of governing ... -
Aceleración de simulaciones de fluidos Lattice Boltzmann utilizando CUDA
(2009)
Text en actes de congrés
Accés obertEn la simulación computacional de fluidos Newtonianos es bastante reciente el uso del método Lattice Boltzmann (LBM) en comparación con otras técnicas más desarrolladas como Marker-and-Cell (MAC) o Smoothed Particle ... -
Active flow control of the boundary layer on an airfoil: a numerical study
(Universitat Politècnica de Catalunya, 2021-01)
Treball Final de Grau
Accés obertEn aquest projecte es duu a terme un estudi per comprovar l’efecte de la utilització de control de flux actiu sobre el rendiment d’un perfil aerodinàmic utilitzant el software OpenFOAM. Per fer-ho, primerament s’elabora ... -
Advanced numerical methods for shallow water simulations
(Universitat Politècnica de Catalunya, 2023-07-18)
Treball Final de Grau
Accés obertThis project is about the usage of Runge Kutta methods in Shallow Water simulations. This is not widely used in any case as other methods such as Euler or Adam Bashforth. Runge Kutta is a predictive method that is believed ... -
Advances in effective flow separation control for aircraft drag reduction: modeling, simulations and experimentations
(Springer, 2020)
Llibre
Accés restringit per política de l'editorialThis book includes a collection of chosen research papers from the partners of a research project (the Seventh Framework Programme Grant Agreement (Grant Number: 266326)) named Manipulation of Reynolds Stress for Separation ... -
Air injection tests in two argillaceous rock formations: experimental results and modelling
(CRC Press, 2016)
Text en actes de congrés
Accés restringit per política de l'editorialAir flow through two argillaceous rock formations is investigated on the basis of laboratory work and its modelling to help in the interpretation of the results. Priority in the experimental program has been given to study ...