Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
498380 | Computer Methods in Applied Mechanics and Engineering | 2012 | 18 Pages |
Abstract
An explicit time integrator without the CFL < 1 restriction for the momentum equation is presented. This allows stable large time-steps in problems dominated by convection, independently of the spatial discretization.The idea is to use the information existing at time t=tnt=tn in the velocity streamlines as well as in the acceleration streamlines to update the particle position as well as the velocity in an updated Lagrangian frame. The method may be used with moving or fixed meshes.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Sergio Idelsohn, Norberto Nigro, Alejandro Limache, Eugenio Oñate,