Buscar
Mostrando ítems 31-40 de 187
Differential geometry, Palatini gravity and reduction
(American Institute Of Physics, 2014-01)
The present article deals with a formulation of the so called (vacuum) Palatini gravity as a general variational principle. In order to accomplish this goal, some geometrical tools related to the geometry of the bundle of ...
Totally discrete explicit and semi-implicit Euler methods for a blow-up problem in several space dimensions
(Springer Wien, 2006-12)
The equation u t =Δu+u p with homogeneous Dirichlet boundary conditions has solutions with blow-up if p>1. An adaptive time-step procedure is given to reproduce the asymptotic behavior of the solutions in the numerical ...
A constructive approach to Euler hydrodynamics for attractive processes. Application to k-step exclusion
(Elsevier Science BvAmsterdamHolanda, 2002)
Application of a bounded upwinding scheme to complex fluid dynamics problems
(2013-02-01)
This paper is concerned with an overview of upwinding schemes, and further nonlinear applications of a recently introduced high resolution upwind differencing scheme, namely the ADBQUICKEST [V.G. Ferreira, F.A. Kurokawa, ...
Application of a bounded upwinding scheme to complex fluid dynamics problems
(2013-02-01)
This paper is concerned with an overview of upwinding schemes, and further nonlinear applications of a recently introduced high resolution upwind differencing scheme, namely the ADBQUICKEST [V.G. Ferreira, F.A. Kurokawa, ...
A Time-Stepping DPG Scheme for the Heat Equation
(2017)
We introduce and analyze a discontinuous Petrov-Galerkin method with optimal test functions for the heat equation. The scheme is based on the backward Euler time stepping and uses an ultra-weak variational formulation at ...
Assessment of a high-order finite difference upwind scheme for the simulation of convection-diffusion problems
(John Wiley & Sons Ltd, 2009-05-10)
This article deals with the Study of the development and application of the high-order upwind ADBQUICKEST scheme, an adaptative bounded version of the QUICKEST for unsteady problems (Commun. Numer Meth. Engng 2007; ...