Accession Number : ADA192040

Title :   Accurate, Productive Aerodynamic Simulation on Patched Mesh Systems.

Descriptive Note : Annual rept. 1 Oct 86-30 Sep 87,

Corporate Author : PEDA CORP PALO ALTO CA

Personal Author(s) : Lombard, Charles K ; Oliger, Joseph ; Bardina, Jorge ; Venkatapathy, Ethiraj ; Yang, J Y

PDF Url : ADA192040

Report Date : 30 Nov 1987

Pagination or Media Count : 64

Abstract : The research has aimed at defining data structures and completing tools for a new flexible approach to scientific programming and problem solving. Both problems of program complexity associated with changing models and physics as well as joined and disjoint multiple independent patched domain decompositions for treating complex geometries can be systematically organized within the context of the directed graph programming concept being explored. Problems and parts of problems having geometric connectivity or its analogs such as precedence relationships are naturally exhibited and easily debugged or modified in the graph. The solution of problems is literally to traverse the graph. For the planned prototype aerodynamic simulation facility the graphs which are to embody grid generation and Navier Stokes solution procedures are to be constructed with a graphical editor hosted in a high performance graphics workstation. Keywords: Adaptive gridding; Navier stokes; Patched grids, Upwind methods.

Descriptors :   *COMPUTER PROGRAMMING, *NAVIER STOKES EQUATIONS, AERODYNAMICS, DATA BASES, DECOMPOSITION, FACILITIES, GRAPHICS, GRAPHS, GRIDS, MESH, PROBLEM SOLVING, PROTOTYPES, SIMULATION, SOLUTIONS(GENERAL), TAYLORS SERIES

Subject Categories : Computer Programming and Software
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE