Results 41 to 50 of about 31,466 (166)

Current renormalization in finite volume

open access: yesPhysics Letters B, 2007
For finite volume field theories with discrete translational invariance, conserved currents can be additively renormalized by infrared effects. We demonstrate this for pions using chiral perturbation theory coupled to electromagnetism in a periodic box. Gauge invariant single particle effective theories are constructed to explain these results. In such
Hu, Jie   +2 more
openaire   +3 more sources

Simulação numérica de movimento de água em solo não-saturado Numerical simulation of water movement in an unsaturated soil

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2003
Neste trabalho, o método de volumes finitos foi utilizado com esquema de discretização mais elaborado, chamado Flux-Spline, a fim de simular numericamente problemas unidimensionais não lineares de infiltração de água em solo hidraulicamente homogêneo não-
Paulo C. Oliveira, José L. Lima
doaj   +1 more source

Aplikace rekonstrukčních operátorů v nespojité galerkinově metodě [PDF]

open access: yesACC Journal, 2012
Tento článek představuje přehled základních konceptů nutných k zapojeni rekonstrukčních operátorů, známých z metody konečných objemů (FV) a spektrálních objemů (SV) vyššího řádu, do nespojité Galerkinovy (DG) metody.
Václav Kučera
doaj  

Methods to Increase the Robustness of Finite-Volume Flow Models in Thermodynamic Systems

open access: yesEnergies, 2014
This paper addresses the issues linked to simulation failures during integration in finite-volume flow models, especially those involving a two-phase state.
Sylvain Quoilin   +4 more
doaj   +1 more source

Quenched finite volume logarithms [PDF]

open access: yesNuclear Physics B, 2001
LaTeX, 14 pages.
openaire   +2 more sources

HIDDEN CHARM MOLECULES IN A FINITE VOLUME [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2013
In the present paper we address the interaction of charmed mesons in hidden charm channels in a finite box. We use the interaction from a recent model based on heavy quark spin symmetry that predicts molecules of hidden charm in the infinite volume. The energy levels in the box are generated within this model, and several methods for the analysis of ...
M. Albaladejo   +3 more
openaire   +6 more sources

Numerical Simulation of Conservation Laws with Moving Grid Nodes: Application to Tsunami Wave Modelling

open access: yesGeosciences, 2019
In the present article, we describe a few simple and efficient finite volume type schemes on moving grids in one spatial dimension combined with an appropriate predictor−corrector method to achieve higher resolutions.
Gayaz Khakimzyanov   +3 more
doaj   +1 more source

The McKean–Vlasov Equation in Finite Volume [PDF]

open access: yesJournal of Statistical Physics, 2010
We study the McKean--Vlasov equation on the finite tori of length scale $L$ in $d$--dimensions. We derive the necessary and sufficient conditions for the existence of a phase transition, which are based on the criteria first uncovered in \cite{GP} and \cite{KM}.
Chayes, L., Panferov, V.
openaire   +5 more sources

Error estimate for finite volume scheme [PDF]

open access: yesNumerische Mathematik, 2006
In this paper, the authors developed the finite element volume scheme for error estimation of linear advection problems. A number of theorems and lemmas are developed for theoretical foundation, but no numerical experiments are performed for illustration.
Merlet, Benoît, Vovelle, Julien
openaire   +4 more sources

Finite volumes and finite elements: Two ‘good friends’ [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 1994
AbstractIn this paper a comparison between the finite element and the finite volume methods is presented in the context of elliptic, convective–diffusion and fluid flow problems. The paper shows that both procedures share a number of features, like mesh discretization and approximation.
Idelsohn, S. R., Oñate, E.
openaire   +2 more sources

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