Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
STABILITY ANALYSIS OF BOUNDARY-LAYER ON A SPHERE ROTATING IN STILL FLUID
Autore:
TANIGUCHI H; KOBAYASHI R; FUKUNISHI Y;
Indirizzi:
IWATE UNIV,DEPT MECH ENGN,4-3-5 UEDA MORIOKA IWATE 020 JAPAN ISHINOMAKI SENSHU UNIV,DEPT MECH ENGN ISHINOMAKI 98680 JAPAN TOHOKU UNIV,DEPT MACHINE INTELLIGENCE & SYST ENGN,AOBA KU SENDAI MIYAGI 98077 JAPAN
Titolo Testata:
JSME international journal. Series B, fluids and thermal engineering
fascicolo: 1, volume: 41, anno: 1998,
pagine: 45 - 51
SICI:
1340-8054(1998)41:1<45:SAOBOA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSITION;
Keywords:
BOUNDARY LAYER; STABILITY; TRANSITION; TURBULENCE; 3-DIMENSIONAL FLOW; ROTATING SPHERE; SPIRAL VORTEX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
H. Taniguchi et al., "STABILITY ANALYSIS OF BOUNDARY-LAYER ON A SPHERE ROTATING IN STILL FLUID", JSME international journal. Series B, fluids and thermal engineering, 41(1), 1998, pp. 45-51

Abstract

Theoretical study of three-dimensional boundary layer transition on asphere rotating in still fluid has been carried out by a linear stability analysis. It is shown that the neutral stability curve shifts toward the lower Reynolds number and the lower spiral vortex number, either closer to the equator or with the decrease in the vortex angle. Thecritical Reynolds numbers obtained in the analysis are close to but smaller than the experimental results. The rotational speed ratio between the spiral vortices and the surface agrees with the experiments. Itis also shown that the critical Reynolds number becomes insensitive to the vortex angle near the equator. On the other hand, the critical wave number of spiral vortices becomes larger with the increase in the vortex angle and decreases near the equator. Computation including thestreamline-curvature effects in general gives the critical Reynolds numbers closer to the experiments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 15:28:54