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Método dos volumes finitos baseado em elementos para a solução do escoamento bifásico em meios porosos com acoplamento geomecânico
(2019)
A simulação numérica é uma ferramenta de extrema importância à indústria de óleo e gás. Para que seus resultados sejam fidedignos é essencial o emprego de modelos físicos fiéis e de uma boa caracterização geométrica do ...
An augmented mixed–primal finite element method for a coupled flow–transport problem
(2015)
In this paper we analyze the coupling of a scalar nonlinear convection-diffusion problem with the Stokes equations where the viscosity depends on the distribution of the solution to the transport problem. An augmented ...
Optimal Allocation and Sizing of PV Generation Units in Distribution Networks via the Generalized Normal Distribution Optimization Approach
(Cartagena de Indias, 2022)
The problem of optimal siting and dimensioning of photovoltaic (PV) generators in medium-voltage distribution networks is addressed in this research from the perspective of combinatorial optimization. The exact mixed-integer ...
Modelagem numérica do escoamento multifásico transiente composicional em poços de petróleo usando modelo de dois fluidos
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE PETRÓLEO, 2017-10-23)
Transient multiphase flow in pipes is a common phenomenon in chemical, nuclear and
petroleum industries. Numerical simulation of multiphase flow in pipes is an essential tool for
economic and safety analysis related to ...
Dinámica del volteo de bloques en taludes rocosos
(Universidad Nacional de Colombia - Sede Bogotá, 2019-10-17)
This document presents the dynamic analysis of a toppling's process in a rock slope. For this, the program Toppling UN was created, which is capable of reproducing the movement of a block system. The program was formulated ...
Simultaneous enforcement of constraints at position and velocity levels in the nonsmooth generalized-α scheme
(Elsevier Science SA, 2014-11)
This paper presents a formalism for the transient simulation of nonsmooth dynamic mechanical systems composed of rigid and flexible bodies, kinematic joints and frictionless contact conditions. The proposed algorithm ...
Estudo de pilares de concreto armado e pilares mistos de aço e concreto totalmente revestidos
(Universidade Federal de Minas GeraisUFMG, 2013-12-13)
The purpose of this work is the development and implementation of a numerical procedure focused on the analysis of reinforced concrete columns and encased composite columns. For this purpose, a computer program was developed ...
Otimização de forma aplicando B-splines sob critério integral de tensões
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia MecânicaTecnologia de Materiais; Projetos Mecânicos; Termociências, 2009-02-09)
This work proposes a computational methodology to solve problems of optimization in structural design. The application develops, implements and integrates methods for structural
analysis, geometric modeling, design sensitivity ...