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Resultados 185240-185259 de 265603
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Numerical analysis of water melting and solidification in the interior of tubes
(2005) [Artigo de periódico]Latent energy storage systems find applications in many engineering fields, including industrial refrigeration plants, air conditioning installations, recovery of heat in industrial processes, etc. To tackle the design of ... -
Numerical analysis using different levels of complexity and determination of ultimate limit state for riser connection device
(2020) [Trabalho completo publicado em evento] -
Numerical and computational analysis regarding buckling knockdown factor of composite cylinders
(2017) [Trabalho completo publicado em evento] -
Numerical and experimental study of an industrial case for grain size evolution in bainitic steel in controlled hot forging and its influence on mechanical performance
(2022) [Artigo de periódico]Controlling the recrystallization is an important way to reach grain size refinement and outstanding strength and toughness on alloy metals. This study sets out the application and investigation of mathematical microstructure ... -
Numerical Evaluation of the Hydropneumatic Power of the Oscillating Water Column Wave Energy Converter Submitted to Regular and Irregular Waves
(2021) [Artigo de periódico]The purpose of this study is to computationally analyze the hydropneumatic power available in the air duct of an Oscillating Water Column (OWC) Wave Energy Converter (WEC) device when subject to realistic sea state data ... -
Numerical evidence of Janssen-Oerding's prediction in a three-dimensional spin model far from equilibrium
(2022) [Artigo de periódico]In 1994, Jansen and Oerding predicted an interesting anomalous tricritical dynamic behavior in threedimensional models via renormalization group theory. However, we highlight the lack of literature about the computational ... -
Numerical implementation of a micromechanics-based viscoelastic model for geomaterials with isotropically distributed micro-fractures
(2019) [Artigo de periódico]The constitutive behavior of geomaterials is generally affected by the presence at different scales of discontinuity surfaces with different sizes and orientations. According to their mechanical behavior, such discontinuities ... -
A numerical investigation of inertia flows of Bingham-Papanastasiou fluids by an extra stress-pressure-velocity galerkin least-squares method
(2010) [Artigo de periódico]This article is concerned with finite element approximations for yield stress fluid flows through a sudden planar expansion. The mechanical model is composed by mass and momentum balance equations, coupled with the Bingham ... -
A numerical investigation of the resin flow front tracking applied to the RTM process
(2011) [Artigo de periódico]Resin Transfer Molding (RTM) is largely used for the manufacturing of high-quality composite components and the key stage during processing is the resin infiltration. The complete understanding of this phenomenon is of ... -
Numerical methods for regularization models of geophysical flows
(2015) [Dissertação]Escoamentos geofísicos são aqueles escoamentos que são afetados pela rotação da Terra. Simulações computacionais envolvendo este tipo de escoamento tem diversas aplicações como, por exemplo, em estudos sobre mudanças ... -
Numerical model for analysis of the load attenuation on mooring lines in catenary system
(2020) [Trabalho completo publicado em evento] -
Numerical modeling of cable-rigid-body structural systems using the NP-FEM method
(2020) [Trabalho completo publicado em evento] -
Numerical modeling of reinforced concrete structures : static and dynamic analysis
(2013) [Artigo de periódico]A numerical model using the Finite Element Method (FEM) for the nonlinear static and dynamic analysis of reinforced concrete (RC) beams, plates and shells is presented in this work. For this purpose, computer programs based ... -
Numerical modeling of shallow tunnels : analysis of the surface settlements
(2020) [Trabalho completo publicado em evento] -
Numerical modelling of the sedimentation and consolidation of tailings
(1991) [Tese]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) [Artigo de periódico]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) [Artigo de periódico]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) [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]