Immersed Boundary Methodology
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Numerical simulations of flows over a rotating circular cylinder using the immersed boundary method
In this paper, numerical simulations of incompressible flows around rotating circular cylinders have been performed. The two-dimensional Navier-Stokes equations are solved by using a Cartesian non-uniform grid. The Immersed Boundary Method (IBM) with the Virtual Physical Model (VPM) was used in order to model the presence of the circular cylinder in the flow
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-03
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2. Numerical solution of Navier-Stokes equations using a hybrid methodology of immersed boundary and Fourier pseudo-spectral / Solução numérica das Equações de Navier-Stokes usando uma hibridação das metodologias Fronteira Imersa e Pseudo-Espectral de Fourier
No presente trabalho é desenvolvida uma nova metodologia para a solução das equações de Navier-Stokes na formulação incompressível aplicada a escoamentos sobre geometrias complexas. Ela é baseada no acoplamento da metodologia pseudo-espectral de Fourier (MPEF) juntamente com a metodologia da fronteira imersa (MFI). As principais particularidades do
Publicado em: 2011
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3. Desenvolvimento de procedimentos de modelagem de interação fluido-estrutura combinando a Teoria de Vigas de Cosserat e a metologia de fronteira imersa / Developing procedures for modeling fluid-structure interaction by combining the Cosserat beams theory and immersed boundary methodology
A presente tese descreve o trabalho de pesquisa realizado, com o objetivo de desenvolver, implementar e avaliar um procedimento de modelagem tridimensional de fenômenos fluidoestruturais que envolvem estruturas esbeltas, tais como vigas, barras e cabos. A nova abordagem adotada consiste na combinação da teoria de vigas de Cosserat aplicada a estruturas es
Publicado em: 2010
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4. Computations of the flow past a still sphere at moderate reynolds numbers using an immersed boundary method
This paper presents an immersed boundary formulation for three-dimensional incompressible flows that uses the momentum equation to calculate the Lagrangian force field indirectly imposing the no-slip condition on solid interfaces. In order to test the performance of this methodology the flow past a sphere for Reynolds numbers up to 1,000 have been calculated
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-12
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5. Numerical simulation of two-dimensional complex flows around bluff bodies using the immersed boundary method
This paper presents a two-dimensional numerical simulation of flows around different bluff bodies, at Re = 100 and 200, using the Immersed Boundary (IB) method, as a sequence of a previous work. The force density term required by the IB method is obtained with the Virtual Physical Model (VPM). Simulations were carried out for two circular cylinders of differ
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-12
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6. Simulation of non-periodics flows using the fourier pseudo-spectral and immersed boundary methods / Simulação de escoamentos não-periódicos utilizando as metodologias pseudo-espectral e da fronteira imersa acopladas
Modern engineering increasingly requires the comprehension of phenomena related to combustion, aeroacustics, turbulence transition, among others. For these purposes the Computational Fluids Dynamics (CFD) requires the used high order methods. One of these methods is the Fourier pseudo-spectral method, that provides an excellent numerical accuracy, and with t
Publicado em: 2007