Browsing by Title
Now showing items 185349-185368 of 265730
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Numerical modelling of the sedimentation and consolidation of tailings
(1991) [Thesis]The byproduct of processing rocks for the purpose of extraction of minerais is a waste which is generally referred to as tailings. These byproducts are impounded behind dams specially designed for thjs objective and are ... -
Numerical model of electromagnetic stirring for continuos casting billets
(2002) [Journal article]Thispaperintroducesanumericalmodelofanelectromagnetic rotary stirrer based on the finite-element model.Such stirrers are used to improve the quality of continuously cast steel, particularly billets and blooms. The method ... -
Numerical renormalization-group study of the correlation functions of the antiferromagnetic spin 1/2 Heisenberg chain
(1995) [Journal article]We use the density-matrix renormalization-group technique developed by White to calculate the spin correlation functions (S2n+I S2n)=(-1) 1 w(l,N) for isotropic Heisenberg rings up to N=70 sites. The correlation functions ... -
Numerical simulation of a negative ion plasma expansion into vacuum
(1997) [Journal article]The expansion into vacuum of a one-dimensional, collisionless, negative ion plasma is investigated in the framework of the Vlasov–Poisson model. The basic equations are written in a ‘‘new time space’’ by use of a rescaling ... -
Numerical simulation of bidimensional incompressible flows between moving surfaces
(2001) [Journal article]The goal of the present work is the numerical simulation of flows betwen moving surfaces. The method is based on the finite differences explicit Runge-Kutta multi-stage scheme with central spatial discretization and for ... -
Numerical simulation of shallow tunnels lined in steel reinforced concrete considering the effects of cracking
(2019) [Complete work published in event] -
Numerical simulation of the wind action on a long-span bridge deck
(2003) [Journal article]A numerical model to study the aerodynamic and aeroelastic bridge deck behavior is presented in this paper. The flow around a rigid fixed bridge cross-section, as well as the flow around the same cross-section with torsional ... -
Numerical simulation of three dimensional incompressible flows using the finite element method
(2000) [Complete work published in event] -
NUMERICAL SIMULATION OF TURBULENT FLOWS OVER COMPLEX TERRAINS USING THE OPEN SOURCE CFD SOFTWARE OPENFOAM
(2018) [Abstract published in event] -
Numerical simulation of vortex-induced vibrations of a pair of cylinders
(2001) [Journal article]The 2-D numerical simulation of vortex-induced vibrations of twocloselyspaced parallel rigid circular cylinders, restrained by elastic springs and aligned in a normal direction with respect to the free stream flow, is ... -
Numerical simulations with the Galerkin least squares finite element method for the Burgers' equation on the real line
(2017) [Journal article]In this work we present an efficient Galerkin least squares finite element scheme to simulate the Burgers’ equation on the whole real line and subjected to initial conditions with compact support. The numerical simulations ... -
Numerical study and geometrical investigation of an onshore overtopping device wave energy converter with a seabed coupled structure
(2023) [Journal article]Studies regarding renewable energy sources have gained attention over recent years. One example is wave energy converters, which harvest energy from sea waves using different operational principles such as oscillating water ... -
Numerical study of a laminar jet diffusion flame
(2006) [Abstract published in event] -
Numerical study of an elliptical fin inserted in a square cavity with the upper sliding surface submitted to mixed convection
(2018) [Journal article]This paper aims to evaluate the heat transfer in a square cavity with an elliptical fin located in different positions on the cavity bottom and with different aspect ratios. The optimal geometry was analised using the ... -
Numerical study of premixed flame stabilization within porous inert media employing the flamelet generated manifold technique
(2021) [Thesis]Atualmente, o processo de combustão é o principal responsável pelas emissões de gases do efeito estufa. Uma alternativa para uma matriz energética mais sustentável requer a utilização de combustíveis provenientes de fontes ... -
Numerical study of radiative heat loss on near-extinction laminar non-premixed flames employing detailed chemistry and the FGM method
(2020) [Dissertation]Esta dissertação tem como objetivo o estudo de diferentes abordagens para a solução do problema radiante em chamas difusivas laminares. Ao longo deste trabalho, o código Chem1d é usado extensivamente para o estudo de ... -
Numerical study of soot formation in laminar ethylene diffusion flames
(2016) [Thesis]The objective of this thesis is to study soot formation in laminar diffusion flames. For soot modeling, a semi-empirical two equation model is chosen for predicting soot mass fraction and number density. The model describes ... -
A numerical study of the influence of radiation on turbulence in a 2D axisymmetric turbulent flame
(2015) [Journal article]This paper presents a study of the influence of thermal radiation on turbulence in the simulation of a turbulent, non-premixed methane- air flame. In such a problem, two aspects need to be considered for a precise evaluation ... -
Numerical study of the laminar premixed flame stabilization on a slot burner : comparison between detailed and FGM models
(2020) [Journal article]It is still a challenging task to numerically solve flames using detailed chemical kinetics in multidimensional geometries of practical applications. To overcome this difculty, many eforts have been done to develop chemical ... -
A numerical study on the aerodynamic performance of building cross-sections using corner modifications
(2018) [Journal article]A numerical investigation is performed in this work in order to evaluate the aerodynamic performance of building cross-section configurations by using corner modifications. The CAARC tall building model is utilized here ...
