Accession Number:

ADP013664

Title:

Large Eddy and Detached Eddy Simulations Using an Unstructured Multigrid Solver

Descriptive Note:

Conference paper

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CENTER

Report Date:

2001-08-01

Pagination or Media Count:

10.0

Abstract:

This work is concerned with the development of an efficient parallel Large Eddy Simulation LES and Detached Eddy Simulation DES capability using unstructured meshes. The advantages of unstructured meshes include flexible modeling of complex geometries, adaptive meshing capabilities, and homogeneous data structures well suited for massively parallel computer architectures. On the other hand, unstructured mesh techniques require additional computer resources as compared to cartesian or structured mesh methods, and the achievable accuracy of the particular unstructured mesh discretization must be carefully considered. The approach developed in this work is based on an existing steady-state unstructured mesh solver which relies on agglomeration multigrid for rapid convergence and has been shown to scale well on inexpensive personal computer PC clusters as well as on massively parallel supercomputers using thousands of processors1.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE