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A survey on direct solvers for Galerkin methods
(Sociedad Española de Matemática Aplicada, 2012-01)
In this paper we describe the history, performance, and design concepts of direct solvers for algebraic systems resulting from Galerkin discretizations of partial differential equations. Popular direct solver implementations ...
The cost of continuity: a study of the performance of isogeometric finite elements using direct solvers
(Elsevier Science Sa, 2012-03)
We study the performance of direct solvers on linear systems of equations resulting from isogeometric analysis. The problem of choice is the canonical Laplace equation in three dimensions. From this study we conclude that ...
Computational cost of isogeometric multi-frontal solvers on parallel distributed memory machines
(Elsevier Science Sa, 2015-02)
This paper derives theoretical estimates of the computational cost for isogeometric multi-frontal direct solver executed on parallel distributed memory machines. We show theoretically that for the Cp-1 global continuity ...
Verificacao de solvers do OpenFOAM para o escoamento supersônico sobre cones
(Universidade Tecnológica Federal do ParanáFrancisco BeltraoBrasilMétodos Matemáticos AplicadosUTFPR, 2019-10-26)
This work presents the verification of using OpenFOAM software applied to supersonic velocity fluid flow over cones. Using three OpenFOAM solvers simulations are made to find the value of the frontal drag coefficient. To ...
On the computational efficiency of isogeometric methods for smooth elliptic problems using direct solvers
(John Wiley & Sons Ltd, 2014-11)
SUMMARY: We compare the computational efficiency of isogeometric Galerkin and collocation methods for partial differential equations in the asymptotic regime. We define a metric to identify when numerical experiments have ...
Análisis aeroacústico de las hélices contrarrotativas de un motor de rotor abierto en condiciones de despegue
(2019-06-03)
RESUMEN:
El propósito de la presente investigación fue observar y analizar el comportamiento del
fluido en las hélices contrarrotativas del motor de rotor abierto al realizar variaciones en
las geometrías de estas. ...
Simulación del flujo del salto de esquí y de la poza de disipación debido a un mal funcionamiento en la disipación de energía ocasionado por un obstáculo frontal al Reservorio Poechos utilizando el programa Ansys CFX
(Universidad de PiuraPE, 2022-11-17)
La tesis tiene como objetivo reproducir los fenómenos que ocurren en la poza de disipación en el Reservorio Poechos y obtener información relevante sobre la erosión en las proximidades de los cimientos de la presa. Con tal ...
Modelado Matemático Del Secado De Madera Subtropical Por Convección De Aire Caliente
(2011-10-31)
This work was divided into three parts. In the first part we obtained the experimental drying kinetics for Mexican softwood (Pinus pseudostrobus). In the second part, from experimental data we have developed a semi-empirical ...
Numerical investigation of three dimensional viscoelastic free surface flows: impacting drop problem
(International Association for Computational Mechanics (IACM)European Community on Computational Methods in Applied Sciences (ECCOMAS)Barcelona, 2014-07-20)
This work presents a numerical investigation of three dimensional viscoelastic
free surface flows. In particular, using two different numerical methodologies, we have
simulated a typical free-surface benchmark flow ...