In this work we explore possible improvements to the error indicator based on the numerical entropy production originally presented in [Puppo, SISC 2003] . In particular, we improve the resolution of local extrema, detecting them and reducing numerical diffusion on these points. This is essential in adaptive algorithms to prevent coarsening on extrema.
Adaptive grids and the entropy error indicator
PUPPO, GABRIELLA ANNA;Semplice, M.
2010-01-01
Abstract
In this work we explore possible improvements to the error indicator based on the numerical entropy production originally presented in [Puppo, SISC 2003] . In particular, we improve the resolution of local extrema, detecting them and reducing numerical diffusion on these points. This is essential in adaptive algorithms to prevent coarsening on extrema.
File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
SemplicePuppo-HYP2010_v2.pdf
non disponibili
Tipologia:
Documento in Pre-print
Licenza:
DRM non definito
Dimensione
621.74 kB
Formato
Adobe PDF
|
621.74 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
