Accession Number:

ADA280998

Title:

A Three Dimensional Multigrid Reynolds-Averaged Navier-Stokes Solver for Unstructured Meshes

Descriptive Note:

Contractor rept.

Corporate Author:

INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s):

• Mavriplis, D. J.

Report Date:

1994-05-01

Pagination or Media Count:

28.0

Abstract:

A three-dimensional unstructured mesh Reynolds averaged Navier-Stokes solver is described. Turbulence is simulated using a single field-equation model. Computational overheads are minimized through the use of a single edge- based data-structure, an efficient multigrid solution technique, and the use of multi-tasking on shared memory multi-processors. The accuracy and efficiency of the code are evaluated by computing two-dimensional flows in three-dimensions and comparing with results from a previously validated two-dimensional code which employs the same solution algorithm. The feasibility of computing three- dimensional turbulent flows on grids of several million points in less than two hours of wall clock time is demonstrated. Multigrid, Unstructured, Navier- Stokes

Descriptors:

• *COMPUTATIONAL FLUID DYNAMICS
• *NAVIER STOKES EQUATIONS
• COMPUTER PROGRAMS
• ALGORITHMS
• EDGES
• GRIDS
• MESH
• FLOW FIELDS
• TWO DIMENSIONAL FLOW
• FEASIBILITY STUDIES
• THREE DIMENSIONAL
• ACCURACY
• EFFICIENCY
• TURBULENT FLOW
• PARALLEL PROCESSING

Subject Categories:

• Computer Programming and Software
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE