Title:
|
Petrov-Galerkin methods for the transient advective-diffusive equation with sharp gradients
|
Author:
|
Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria |
Abstract:
|
A Petrov–Galerkin formulation based on two different perturbations to the weighting functions is presented. These perturbations stabilize the oscillations that are normally exhibited by the numerical solution of the transient advective–diffusive equation in the vicinity of sharp gradients produced by transient loads and boundary layers. The formulation may be written as a generalization of the Galerkin Least-Square method. |
Subject(s):
|
-Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica -Difference equations--Numerical solutions -Research Report CIMNE -Equacions diferencials--solucions numèriques -Classificació AMS::65 Numerical analysis::65L Ordinary differential equations |
Rights:
|
|
Document type:
|
Article - Draft Report |
Share:
|
|