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Titolo:
Aerodynamic influence coefficient computations using Euler/Navier-Stokes equations on parallel computers
Autore:
Byun, C; Farhangnia, M; Guruswamy, GP;
Indirizzi:
NASA, Ames Res Ctr, Moffett Field, CA 94035 USA NASA Moffett Field CA USA94035 Ames Res Ctr, Moffett Field, CA 94035 USA
Titolo Testata:
AIAA JOURNAL
fascicolo: 11, volume: 37, anno: 1999,
pagine: 1393 - 1400
SICI:
0001-1452(199911)37:11<1393:AICCUE>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNSTEADY TRANSONIC-FLOWS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Byun, C Sun Microsyst Inc, Market Dev Engn, 901 San Antonio Rd, Palo Alto,CA 94303 USA Sun Microsyst Inc 901 San Antonio Rd Palo Alto CA USA 94303 03 USA
Citazione:
C. Byun et al., "Aerodynamic influence coefficient computations using Euler/Navier-Stokes equations on parallel computers", AIAA J, 37(11), 1999, pp. 1393-1400

Abstract

An efficient procedure to compute aerodynamic influence coefficients (AICs), using high-fidelity how equations such as Euler/Navier-Stokes equations,is presented. The AICs are computed by perturbing structures using mode shapes. The procedure is developed on a multiple-instruction, multiple data parallel computer. In addition to discipline parallelization and coarse-grain parallelization of the flow domain, embarrassingly parallel implementation of ENSAERO code demonstrates linear speedup for a large number of processors. Demonstration of the AIC computation for static aeroelasticity analysis is made on an arrow wing-body configuration. Validation of the current procedure is made on a straight wing with arc airfoil at a subsonic region. The present flutter speed and frequency of the wing show excellent agreementwith those results obtained by experiment and NASTRAN. The demonstrated linear scalability for multiple concurrent analyses shows that the three-level parallelism in the code is well suited for the computation of the AICs.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 11:53:45