Accession Number:

ADA207985

Title:

3D Navier-Stokes Flow Analysis for a Large-Array Multiprocessor

Descriptive Note:

Final technical rept. 14 Sep 1988-29 Feb 1989

Corporate Author:

AMTEC ENGINEERING INC BELLEVUE WA

Personal Author(s):

Report Date:

1989-04-17

Pagination or Media Count:

65.0

Abstract:

Computational fluid dynamics CFD software is an important analysis tool for engineers, particularly in the aerospace industry. CFD codes are, however, severely limited by the speed of current upper-computers several orders of magnitude increase in floating-point speed is necessary to effectively utilize CFD tools in engineering design. Parallel processing computers will be available in the next few years with theoretical speeds approaching that required for effective use of CFD. Much work needs to the accomplished in developing CFD algorithms to make efficient utilization of these parallel computers. In this work one explicit and two implicit algorithms for solving the 3D Navier-Stokes equations were developed and benchmarked on the Encore Multimax, a shared-memory Multiple Instruction Multiple Data MIMD computer. Parallelism was obtained with domain decomposition. Parallel efficiencies ranged from 50 to 95 with 2 to 9 processors on 24 X 12 X 12 and 50 X 30 X 30 meshes.

Subject Categories:

  • Computer Programming and Software
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE