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A new two-way artificial boundary condition for wave propagation
(American Institute of Aeronautics and Astronautics Inc, AIAA, 2017)
We propose a new formulation of a two-way artificial boundary condition for the wave equation in mixed form. We justify appropriately the idea behind the formulation of the two-way artificial boundary condition. To exhibit ...
On existence and uniqueness of solutions to a Boussinesq system with nonlinear and mixed boundary conditions
(Academic Press Inc Elsevier Science, 2020-10)
We study a Boussinesq system in a bounded domain with an outlet boundary portion where fluid can leave or re-enter. On this boundary part, we consider a do-nothing condition for the fluid flow, and a new artificial condition ...
A Dirichlet-to-Neumann finite element method for axisymmetric elastostatics in a semi-infinite domain
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2017)
The Dirichlet-to-Neumann finite element method (DtN FEM) has proven to be a powerful numerical approach to solve boundary-value problems formulated in exterior domains. However, its application to elastic semi-infinite ...
Stability region bifurcations of nonlinear autonomous dynamical systems: Type-zero saddle-node bifurcations
(WILEY-BLACKWELL, 2011)
The behavior of stability regions of nonlinear autonomous dynamical systems subjected to parameter variation is studied in this paper. In particular, the behavior of stability regions and stability boundaries when the ...
Predicting vacancy migration energies in lattice-free environments using artificial neural networks
(Elsevier, 2013-12)
We propose a methodology for predicting migration energies associated to the migration of single atoms towards vacant sites, using artificial neural networks. The novelty of the approach, which has already been proven ...
Dynamic Boundary Conditions in Fluid Mechanics
(Elsevier Science Sa, 2008-02)
The number and type of boundary conditions to be used in the numerical modeling of fluid mechanics problems is normally chosen according to a simplified analysis of the characteristics, and also from the experience of the ...
Wave-heat coupling in one-dimensional unbounded domains: artificial boundary conditions and an optimized Schwarz method
(Springer, 2022)
This paper deals with the coupling between one-dimensional heat and wave equations in unbounded subdomains, as a simplified prototype of fluid-structure interaction problems. First we apply appropriate artificial boundary ...
Arbitrary Lagrangian-Eulerian method for Navier-Stokes equations with moving boundaries
(ELSEVIER, 2004)
This article deals with the numerical approximation of Navier-Stokes equations in a domain with moving boundaries. Using the arbitrary Lagrangian-Eulerian (ALE) method we transform the problem from a moving domain to a ...