Abstract: Surface diffusion is a (4th order highly nonlinear) geometric driven motion of a surface with normal velocity proportional to the surface Laplacian of mean curvature. We present a novel variational formulation for parametric surfaces with or without boundaries. The…

In this paper we present some results on the time integration stability when solving fluid/structure interaction problems with strong coupled staged strategies. The flutter of a flat plate faced with a fluid at Mach between 1.8 and 3 is taken…

In this paper we present a numerical solution for the mathematical modeling of the hot-pressing process applied to medium density fiber- board. The model is based in the work of Humphrey [1982], Humphrey and Bolton [1989] and Carvalho and Costa…

Free algebras with an arbitrary number of free generators in varieties of BL-algebras generated by one BL-chain which is an ordinal sum of a finite MV-chain ${\bf L}_n$ and a generalized BL-chain ${\bf B}$ are described in terms of weak…

In this paper, the efficiency and the quality of the solutions obtained with a new parallelizable preconditioner for Domain Decomposition Methods (DDM) by means of Finite Element discretization of partial differential equations arising in the context of CFD problems is…

MPI for Python provides bindings of the Message Passing Interface (MPI) standard for the Python programming language and allows any Python program to exploit multiple processors. This package is constructed on top of the MPI­1 specification and defines an ob…

In this paper, the efficiency of a parallelizable preconditioner for Domain Decomposition Methods in the context of the solution of non-symmetric linear equations arising from discretization of the Saint-Venant equations, is investigated. The proposed Interface Strip Preconditioner (IS) is based…

Axisymmetric inertial waves of a viscous fluid that fill a perturbed
rotating spherical container are numerically simulated by finite
elements. A laminar flow of an incompressible viscous fluid of
Newtonian type is assumed in the numerical simulations. A monolithic
computational…

MPI for Python provides bindings of the Message Passing Interface (MPI) standard for the Python programming language and allows any Python program to exploit multiple processors. In its first release, MPI for Python was constructed on top of the MPI-1…

A floating hemisphere under forced harmonic oscillation at very-low
and very-high frequencies is considered. The problem is reduced to an
elliptic one, that is, the Laplace operator in the exterior domain
with Dirichlet and Neumann boundary conditions. Asymptotic values of