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Titolo: Flow computations around delta wings using unstructured hybrid grids
Autore: Kano, S; Nakahashi, K;
 Indirizzi:
 Tohoku Univ, Dept Aeronaut & Space Engn, Sendai, Miyagi 980857901, Japan Tohoku Univ Sendai Miyagi Japan 980857901 Sendai, Miyagi 980857901, Japan
 Titolo Testata:
 JOURNAL OF AIRCRAFT
fascicolo: 2,
volume: 36,
anno: 1999,
pagine: 374  379
 SICI:
 00218669(199903/04)36:2<374:FCADWU>2.0.ZU;25
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 IMPLICIT SCHEMES; VORTICAL FLOWS; REFINEMENT;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Engineering, Computing & Technology
 Citazioni:
 30
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Kano, S Tohoku Univ, Dept Aeronaut & Space Engn, Sendai, Miyagi 980857901,Japan Tohoku Univ Sendai Miyagi Japan 980857901 Miyagi 980857901, Japan



 Citazione:
 S. Kano e K. Nakahashi, "Flow computations around delta wings using unstructured hybrid grids", J AIRCRAFT, 36(2), 1999, pp. 374379
Abstract
The capability of an unstructured hybrid grid method to compute the compressible NavierStokes equations is discussed for vortical flows over slenderdelta wings at low subsonic, highalpha conditions as a basic study of offdesign aerodynamics of high speed civil transport configurations. Computations of these nons require high resolutions of the boundary layers on the wing and of the vortical flow region above the wing. The unstructured hybridgrid, which is composed of a prismatic grid in boundary layers and tetrahedral and pyramidal grids for the remaining region, is used to treat such viscous hows, The compressible NavierStokes equations are solved on the hybrid grid by a cellvertex, upwind finite volume method. The loweruppersymmetric GaussSeidel implicit time integration scheme Is used for the convergence acceleration to steady state, The numerical accuracy of the present method is discussed by comparing with the experimental data for the same configurations. It is demonstrated that the present hybrid grid method is efficient and accurate enough to predict the vortical flow fields over the deltawings.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 12:13:35