Accession Number : ADA293125

Title :   Three-Dimensional (3D) Large Fluid Flow Computations for U.S. Army Applications on KSR-1, CM-200, CM-5, and Cray C-90.

Descriptive Note : Final rept. Jul 92-Jul 94,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Patel, Nisheeth ; Edge, Harris ; Clarke, Jerry

PDF Url : ADA293125

Report Date : FEB 1995

Pagination or Media Count : 31

Abstract : The thrust of this research is to investigate the use of emerging massively parallel computer architectures for production type fluid flow applications. Typical flow computations in a ballistic simulation have reached a stage where a grid set involving a couple of million points are needed for adequate understanding of the flow behavior and computing the resulting forces acting on a projectile with a complex geometrical shape. For acceptable turnaround time, the simulation requires a system with large memory and high performance. Because of the hardware scalability and availability of large In-core memory, the emerging massively parallel processors (MPP) architectures such as Connection Machine's CM.5 and Kendall Square Research KSR-1 have become attractive for ballistic computations. Thus, this research is focused on implementation of complex real-world applications (not simple scaled down problems) on MPPs with the goal of sustainable performance. Because performance measurements obtained using the kernel of the full application and/or scaled down application size or 2-D cases could lead to considerably higher performance estimates, these factors are discussed in light of results from full 3.D applications obtained on MPPs. (AN)

Descriptors :   *PROJECTILES, *COMPUTATIONAL FLUID DYNAMICS, ALGORITHMS, COMPUTERIZED SIMULATION, DISTRIBUTED DATA PROCESSING, COMPUTER COMMUNICATIONS, COMPARISON, GRIDS, COMPUTER ARCHITECTURE, INPUT OUTPUT PROCESSING, PARALLEL PROCESSING, PARALLEL PROCESSORS, FLOW VISUALIZATION, FLOW FIELDS, GEOMETRIC FORMS, HYDRODYNAMIC CODES, NAVIER STOKES EQUATIONS, BALLISTICS, BUFFER STORAGE, FLOATING POINT OPERATION, FIN STABILIZED AMMUNITION, THREE DIMENSIONAL FLOW.

Subject Categories : Fluid Mechanics
      Computer Programming and Software
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE