High Accuracy in CFD using Hybrid Solution Strategies with Domain Partitionning

Vincent Couaillier

Description

Sc i e n t i f i c O n e r a D a y – X T R E M C F D – 7 O c t o b e r 2 0 1 1 Onera Scientific Day Xtrem CFD High Accuracy in CFD using Hybrid Solution Strategies with Domain Partitionning presented by Vincent Couaillier ONERA/DSNA

• hybrid domain decomposition


• sub-structuring approaches


• méthodes pseudo-instationnaires pour le calcul d'écoulements transsoniques


• domain decomposition


• flu3m - onera

Sujets

• Domain decomposition methods

Informations

• Publié par: pefav
• Nombre de lectures: 14
• Langue: English
• Poids de l'ouvrage: 2 Mo

Extrait

Hybrid

Onera Scientific Day Xtrem CFD

High Accuracy in CFD using Solution Strategies with Domain Partitionning presented by Vincent Couaillier ONERA/DSNA

2

Hybrid domain decomposition Introduction (1)

- Domain decomposition : beginning of the eighties at Onera

- First for Mesh generation and accuracy (MBS)

- In the same time domain decompostion for accuracy

- Shock and contact discontinuity fitting, …

-Accuracy (model, discretization scheme, …)

- Domain decomposition for local mesh refinement in structured approaches

- Patch grids, overlapping grids, chimera, …

- Model reduction (reduced algebraic system)

- Parallel solution strategies of linear system (not based on domain decomposition)

- Permutation, graph theory,…

- Efficiency (memory storage, elapsed time)