Accession Number : ADA294167

Title :   High Order Accuracy Computational Methods in Aerodynamics Using Parallel Architectures.

Descriptive Note : Final technical rept. Jan 93-Jan 95,

Corporate Author : BROWN UNIV PROVIDENCE RI DIV OF APPLIED MATHEMATICS

Personal Author(s) : Gottlieb, David ; Shu, C. W. ; Fischer, P. ; Don, W. S.

PDF Url : ADA294167

Report Date : 24 MAR 1995

Pagination or Media Count : 29

Abstract : In this research we presented the development and application of spectral shock capturing techniques as well as ENO finite difference and finite element methods for realistic problems. For genuinely time dependent problems, special care had to be taken in order to preserve accuracy. Small errors that do not show up in steady state calculations can be amplified and ruin the total accuracy. Time dependent boundary conditions may also pose problems. We addressed those issues in our research efforts. The recent advent of parallel computers poses a special challenge to the users of high-order methods. Issues in parallel computing for the simulations of incompressible and compressible flows has been treated.

Descriptors :   *ALGORITHMS, *COMPUTER ARCHITECTURE, *AERODYNAMICS, STEADY STATE, COMPUTATIONS, TIME DEPENDENCE, COMPUTERS, FINITE ELEMENT ANALYSIS, ACCURACY, PARALLEL PROCESSING, BOUNDARIES, SPECTRA, COMPRESSIBLE FLOW, SHOCK, ERRORS.

Subject Categories : Numerical Mathematics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE