Exploració per tema "Numerical analysis"
Ara es mostren els items 5-24 de 753
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A 4-node thin shell element based on co-rotational for laminated composite structures
(Universitat Politècnica de Catalunya. CIMNE, 2018)
Article
Accés obertThe finite formulation of the 4-node thin shell element based on Co-rotational (CR) and Timoshenko's theory was presented for the analysis of laminated composite structures. Based on the Timoshenko's theory the present ... -
A branch-and-cut algorithm for the multidepot rural postman problem
(2018-03)
Article
Accés obertThis paper considers the Multidepot Rural Postman Problem, an extension of the classical Rural Postman Problem in which there are several depots instead of only one. The aim is to construct a minimum cost set of routes ... -
A C0 interior penalty Finite Element Method for flexoelectricity
(2021-09)
Article
Accés obertWe propose a C0 Interior Penalty Method (C0-IPM) for the computational modelling of flexoelectricity, with application also to strain gradient elasticity, as a simplified case. Standard high-order C0 finite element ... -
A Cellular Automata Model for Integrated Simulation of Land Use and Transport Interactions
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-08)
Article
Accés obertCellular automata (CA) models have been used in urban studies for dealing with land use change. Transport and accessibility are arguably the main drivers of urban change and have a direct influence on land use. Land use ... -
A comparative study of two compact finite difference methods: standard vs. mimetic
(Sociedad Venezolana de Métodos Numéricos en Ingeniería, 2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn this work, we implement two fourth-order compact finite differences (CFD) methods and use them to model wave propagation on a elastic string. The formulation of the first method employs the standard implicit CFD constructed ... -
A direct elimination algorithm for quasi-static and dynamic contact problems
(2015-01-01)
Article
Accés obertThis paper deals with the computational modeling and numerical simulation of contact problems at Unite deformations using the Finite element method. Quasi-static and dynamic problems are considered and two particular ... -
A factorization-based algorithm to predict EMG data using only kinematics information
(2021-07-08)
Article
Accés obertEMG analyses have several applications, such as identifying muscle excitation patterns during rehabilitation or training plans, or controlling EMG-driven devices. However, experimental measurements can be time consuming ... -
A FIC-FEM procedure for the shallow water equations over partially wet domains
(2022-02-01)
Article
Accés obertWe present a stable finite element formulation for the shallow water equations using the finite increment calculus (FIC) procedure. This research is focused on the stability properties of the FIC technique and uses linear ... -
A finite point method to solve shallow water equations
(2009-02)
Report de recerca
Accés obert -
A flux-free a posteriori error estimator for the incompressible Stokes problem using a mixed FE formulation
(2010-08-01)
Article
Accés obertIn this contribution, we present an a posteriori error estimator for the incompressible Stokes problem valid for a conventional mixed FE formulation. Due to the saddle-point property of the problem, conventional error ... -
A geometric description of Discrete Exterior Calculus for general triangulations
(Universitat Politècnica de Catalunya. CIMNE, 2019)
Article
Accés obertWe revisit the theory of Discrete Exterior Calculus (DEC) in 2D for general triangulations, relying only on Vector Calculus and Matrix Algebra. We present DEC numerical solutions of the Poisson equation and compare them ... -
A influência do peso próprio na otimização topológica de estruturas elásticas 2D – via técnica numérica Smooth Evolutionary Structural Optimization (SESO)
(Universitat Politècnica de Catalunya. CIMNE, 2014)
Article
Accés obertO presente artigo aborda a otimização topológica em problemas de elasticidade plana linear considerando a influência do peso próprio nos esforços em elementos estruturais. Utiliza‐se para este fim uma técnica numérica ... -
A Lagrangian–Eulerian procedure for the coupled solution of the Navier–Stokes and shallow water equations for landslide-generated waves
(Springer, 2022-07-30)
Article
Accés obertThis work presents a partitioned method for landslide-generated wave events. The proposed strategy combines a Lagrangian Navier Stokes multi-fluid solver with an Eulerian method based on the Boussinesq shallow water ... -
A meshless finite point method for three-dimensional analysis of compressible flow problems involving moving boundaries and adaptivity
(2013-10)
Article
Accés obertA finite point method for solving compressible flow problems involving moving boundaries and adaptivity is presented. The numerical methodology is based on an upwind-biased discretization of the Euler equations, written ... -
A methodology for adaptive mesh refinement in optimum shape design problems
(1993-03)
Report de recerca
Accés obert -
A methodology for the design of dam spillways with wedge shaped blocks based on numerical modeling
(Universitat Politècnica de Catalunya. CIMNE, 2019)
Article
Accés obertWedge shaped blocks spillways are an innovative solution that allows spilling over the downstream shoulder of earth and rock-fill dams in a safe way. However, they have been barely used as main spillway due to the lack of ... -
A mimetic wave equation discretization with absorbing boundary condition: Formulation and application
(2016)
Text en actes de congrés
Accés obertThe cornerstone of mimetic finite differentiation (FD) is that discrete gradients and divergences, in combination with a novel boundary flux operator satisfies an approximation to the Gauss–Divergence theorem. In this ... -
A modified fractional step method for fluid–structure interaction problems
(Universitat Politècnica de Catalunya. CIMNE, 2017)
Article
Accés obertWe propose a Lagrangian fluid formulation particularly suitable for fluid–structure interaction (FSI) simulation involving free-surface flows and light-weight structures. The technique combines the features of fractional ... -
A modified Taylor Galerkin scheme for turbulent compressible flow simulation
(Universitat Politècnica de Catalunya. CIMNE, 2019)
Article
Accés obertAs already demonstrated by different authors, the Taylor-Galerkin (TG) scheme, in the context of the Finite Element Method (FEM), is particularly suitable for the solution of supersonic flows. The TG scheme, using hexahedral ... -
A multi-mesh adaptive scheme for air quality modeling with the finite element method
(2012)
Text en actes de congrés
Accés obertA multi-mesh adaptive scheme for convection-diffusion-reaction problems is presented. The proposal is applied to air quality modeling, especifically to the simulation of a pollutant punctual emissions. The performance ...