Journal ArticleDOI
An immersed-boundary finite-volume method for simulations of flow in complex geometries
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In this paper, a new immersed-boundary method for simulating flows over or inside complex geometries is developed by introducing a mass source/sink as well as a momentum forcing.About:
This article is published in Journal of Computational Physics.The article was published on 2001-07-01. It has received 1090 citations till now. The article focuses on the topics: Immersed boundary method & Mixed boundary condition.read more
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Dissertation
Desprendimento de vórtices e controle em esteira de cilindros por simulação numérica direta
Dissertation
Analysis of Combustion LES using an Eulerian Monte Carlo PDF Method
TL;DR: In this article, an Eulerian Monte Carlo PDF transport scheme has been developed and implemented into the existing LES code FLOWSI in order to obtain a sophisticated reference method for detailed investigations of commonly used combustion related LES sub-models.
Journal ArticleDOI
An elliptic foil rotating in uniform low-Reynolds-number flows
Ruifeng Hu,Ruifeng Hu,Hui Tang +2 more
Book ChapterDOI
Chapter 7 Global volcanic simulation: Physical modeling, numerics, and computer implementation
F. Dobran,Juan I. Ramos +1 more
TL;DR: In this article, a pyroclastic dispersion model and its numerical and computer implementation on available computers are presented, which allows for both the coupling between different scales and the exchange of energy between large and small eddies in the plume.
DissertationDOI
Fast Lattice Green's Function Methods for Viscous Incompressible Flows on Unbounded Domains
TL;DR: A collection of novel numerical techniques culminating in a fast, parallel method for the direct numerical simulation of incompressible viscous flows around surfaces immersed in unbounded fluid domains is presented.
References
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Journal ArticleDOI
On the identification of a vortex
Jinhee Jeong,Fazle Hussain +1 more
TL;DR: In this article, the authors propose a definition of vortex in an incompressible flow in terms of the eigenvalues of the symmetric tensor, which captures the pressure minimum in a plane perpendicular to the vortex axis at high Reynolds numbers, and also accurately defines vortex cores at low Reynolds numbers.
Journal ArticleDOI
Application of a Fractional-Step Method to Incompressible Navier-Stokes Equations
John Kim,Parviz Moin +1 more
TL;DR: In this paper, a numerical method for computing three-dimensional, time-dependent incompressible flows is presented based on a fractional-step, or time-splitting, scheme in conjunction with the approximate-factorization technique.
Journal ArticleDOI
Combined Immersed-Boundary Finite-Difference Methods for Three-Dimensional Complex Flow Simulations
TL;DR: In this paper, a second-order accurate, highly efficient method is developed for simulating unsteady three-dimensional incompressible flows in complex geometries, which is achieved by using boundary body forces that allow the imposition of the boundary conditions on a given surface not coinciding with the computational grid.
Journal ArticleDOI
Modeling a no-slip flow boundary with an external force field
TL;DR: In this paper, the Navier-Stokes equations permit the presence of an externally imposed body force that may vary in space and time, and the velocity is used to iteratively determine the desired value.
Journal ArticleDOI
Oblique and Parallel Modes of Vortex Shedding in the Wake of a Circular Cylinder at Low Reynolds Numbers
TL;DR: In this article, it was shown that the Strouhal discontinuity is not due to any of the previously proposed mechanisms, but instead is caused by a transition from one oblique shedding mode to another oblique mode.