Navegação por Título
Resultados 185251-185270 de 265597
-
Numerical simulation of a negative ion plasma expansion into vacuum
(1997) [Artigo de periódico]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) [Artigo de periódico]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) [Trabalho completo publicado em evento] -
Numerical simulation of the wind action on a long-span bridge deck
(2003) [Artigo de periódico]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) [Trabalho completo publicado em evento] -
NUMERICAL SIMULATION OF TURBULENT FLOWS OVER COMPLEX TERRAINS USING THE OPEN SOURCE CFD SOFTWARE OPENFOAM
(2018) [Resumo publicado em evento] -
Numerical simulation of vortex-induced vibrations of a pair of cylinders
(2001) [Artigo de periódico]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) [Artigo de periódico]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) [Artigo de periódico]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) [Resumo publicado em evento] -
Numerical study of an elliptical fin inserted in a square cavity with the upper sliding surface submitted to mixed convection
(2018) [Artigo de periódico]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) [Tese]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) [Dissertação]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) [Tese]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) [Artigo de periódico]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) [Artigo de periódico]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) [Artigo de periódico]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 ... -
Numerical study on the hydrodynamic response of pulsatile blood flow in a vein with axisymmetric stenosis
(2024) [Trabalho de conclusão de graduação]No contexto médico, a estenose (constrição) de um vaso sanguíneo é o estreitamento anormal de sua seção transversal, causado pelo acúmulo de placas nas paredes do vaso. Esses estreitamentos podem ocasionar diferentes ... -
A numerical study on the influence of strain rate in finite-discrete element simulation of the perforation behaviour of woven composites
(2022) [Artigo de periódico]Predicting the perforation limit of composite laminates is an important design aspect and is a complex task due to the multi-mode failure mechanism and complex material constitutive behaviour required. This requires ... -
Numeric and experimental analysis of the turbulent flow through a channel with baffle plates
(2004) [Artigo de periódico]The present work presents the numeric and experimental analysis of the turbulent flow of air inside a channel of rectangular section, containing two rectangular baffle plates. This is an important problem in the scope of ...