Large-Scale Parallel Unstructured Mesh Computations for 3D High-Lift AnalysisA complete "geometry to drag-polar" analysis capability for 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 which arise in high-lift con gurations. 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.
Document ID
20040086834
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Mavriplis, D. J. (Institute for Computer Applications in Science and Engineering Hampton, VA, United States)
Pirzadeh, S. (NASA Langley Research Center Hampton, VA, United States)