A domain decomposition matrix-free method for global linear stability
dc.contributor.author | ALIZARD, Frédéric |
dc.contributor.author
hal.structure.identifier | ROBINET, Jean-Christophe
|
dc.contributor.author | GLOERFELT, Xavier |
dc.date.accessioned | 2014 |
dc.date.available | 2014 |
dc.date.issued | 2012 |
dc.date.submitted | 2014 |
dc.identifier.uri | http://hdl.handle.net/10985/8644 |
dc.description.abstract | This work is dedicated to the presentation of a matrix-free method for global linear stability analysis in geometries composed of multi-connected rectangular subdomains. An Arnoldi technique using snapshots in subdomains of the entire geometry combined with a multidomain linearized Direct Numerical Finite difference simulations based on an influence matrix for partitioning are adopted. The method is illustrated by three benchmark problems: the lid-driven cavity, the square cylinder and the open cavity flow. The efficiency of the method to extract large-scale structures in a multidomain framework is emphasized. The possibility to use subset of the full domain to recover the perturbation associated with the entire flow field is also highlighted. Such a method appears thus a promising tool to deal with large computational domains and three-dimensionality within a parallel architecture. |
dc.language.iso | en_US |
dc.publisher | Elsevier |
dc.rights | Post-print |
dc.subject | Large scale structures dynamics in open-flows |
dc.subject | Global stability analysis |
dc.subject | Matrix-free method |
dc.subject | High-order finite difference scheme |
dc.subject | Incompressible DNS solver |
dc.subject | Multidomains method |
dc.subject | Continuity influence matrix technique |
dc.title | A domain decomposition matrix-free method for global linear stability |
dc.identifier.doi | 10.1016/j.compfluid.2012.05.017 |
dc.typdoc | Article dans une revue avec comité de lecture |
dc.localisation | Centre de Paris |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des fluides |
ensam.audience | Internationale |
ensam.page | 63-84 |
ensam.journal | Computers & Fluids |
ensam.volume | 66 |
hal.identifier | hal-01069683 |
hal.version | 1 |
hal.status | accept |