Large-scale parallel unstructured mesh computations for 3D high-lift analysis | Zendy

Dimitri J. Mavriplis | Zendy; S. Pirzadeh | Zendy

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Large-scale parallel unstructured mesh computations for 3D high-lift analysis

Author(s) -

Dimitri J. Mavriplis,

S. Pirzadeh

Publication year - 1999

Publication title -

38th aerospace sciences meeting and exhibit

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1999-537

Subject(s) - computer science , computation , parallel computing , lift (data mining) , scale (ratio) , computational science , unstructured grid , computational fluid dynamics , algorithm , aerospace engineering , engineering , data mining , physics , quantum mechanics

A complete ``geometry to drag-polar'''' analysis capability for the three-dimensional high-lift configurations is described. The approach is based on the use of unstructured meshes in order to enable rapid turnaround for complicated geometries that arise in high-lift configurations. Special attention is devoted to creating a capability for enabling analyses on highly resolved grids. Unstructured meshes of several million vertices are initially generated on a work-station, and subsequently refined on a supercomputer. The flow is solved on these refined meshes on large parallel computers using an unstructured agglomeration multigrid algorithm. Good prediction of lift and drag throughout the range of incidences is demonstrated on a transport take-off configuration using up to 24.7 million grid points. The feasibility of using this approach in a production environment on existing parallel machines is demonstrated, as well as the scalability of the solver on machines using up to 1450 processors.

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