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Titolo:
An implementation of the robust inviscid wall boundary condition in high-speed flow calculations
Autore:
Kim, MS; Jeon, BW; Kim, YN; Kwon, HB; Lee, DH;
Indirizzi:
Hankuk Aviat Univ, Sch Aerosp & Mech Engn, Koyang, South Korea Hankuk Aviat Univ Koyang South Korea p & Mech Engn, Koyang, South Korea Hankuk Aviat Univ, Dept Aerosp Engn, Koyang, South Korea Hankuk Aviat Univ Koyang South Korea t Aerosp Engn, Koyang, South Korea Seoul Natl Univ, Inst Adv Machinery Design, Dept Aerosp Engn, Seoul 151, South Korea Seoul Natl Univ Seoul South Korea 151 erosp Engn, Seoul 151, South Korea Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151, South Korea Seoul NatlUniv Seoul South Korea 151 erosp Engn, Seoul 151, South Korea
Titolo Testata:
KSME INTERNATIONAL JOURNAL
fascicolo: 5, volume: 15, anno: 2001,
pagine: 671 - 680
SICI:
1226-4865(200105)15:5<671:AIOTRI>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCHEMES; AUSM;
Keywords:
wall boundary condition; upwind scheme; high-speed flow;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, MS Hwajon Dong,Deokyang Ku, Koyang 412791, Kyunggi Do, South Korea Hwajon Dong,Deokyang Ku Koyang Kyunggi Do South Korea 412791 orea
Citazione:
M.S. Kim et al., "An implementation of the robust inviscid wall boundary condition in high-speed flow calculations", KSME INT J, 15(5), 2001, pp. 671-680

Abstract

Boundary condition is one of the major factors to influence the numerical stability and solution accuracy in numerical analysis. One of the most important physical boundary conditions in the flowfield analysis is the wall boundary condition imposed on the body surface. To solve a two-dimensional Euler equation, totally four numerical wall boundary conditions should be prescribed. Two of them are supplied by the flow tangency condition. The othertwo conditions, therefore, should he prepared additionally in a suitable way. In this paper, four different sets of wall boundary conditions are proposed and then applied to solve high-speed flowfields around a quarter circle geometry. A two-dimensional compressible Euler solver is prepared based on the finite volume method. This solver hires three different upwind schemes; Steger-Warming's flux vector splitting, Roe's flux difference splitting,and Lieu's advection upstream splitting method. It is found that the way to specify the additional numerical wall boundary conditions strongly affects the overall stability and accuracy of the upwind schemes in high-speed flow calculation. The optimal wall boundary conditions should be also chosen very carefully depending on the numerical schemes used to solve the problem.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:46:58