Knowledge Management System of Institue of Mechanics, CAS
| Transition waves and nonlinear interactions in the near wake of a circular cylinder | |
Ling GC(凌国灿) ; Chwang AT; Niu JY(牛家玉); Wang DJ; Ling, GC (reprint author), CHINESE ACAD SCI,INST MECH,LAB NONLINEAR MECH CONTINUOUS MEDIA,BEIJING 100080,PEOPLES R CHINA.
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| Source Publication | Science in China Series A-Mathematics Physics Astronomy
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| 1997 | |
| Volume | 40Issue:8Pages:849-859 |
| ISSN | 1006-9283 |
| Abstract | Transition waves and interactions between two kinds of instability-vortex shedding and transition wave in the near wake of a circular cylinder in the Reynolds number range 3 000-10 000 are studied by a domain decomposition hybrid numerical method. Based on high resolution power spectral analyses for velocity new results on the Reynolds-number dependence of the transition wave frequency, i.e. f(t)/f(s) similar to Re-0.87 are obtained. The new predictions are in good agreement with the experimental results of Wei and Smith but different from Braza's prediction and some early experimental results f(t)/f(s) similar to Re-0.5 given by Bloor et nl. The multi-interactions between two kinds of vortex are clearly visualized numerically. The strong nonlinear interactions between the two independent frequencies (f(t), f(s)) leading to spectra broadening to form the coupling mf(s) +/- nf(t) are predicted and analyzed numerically, and the characteristics of the transition are described. Longitudinal variations of the transition wave and its coupling are reported. Detailed mechanism of the flow transition in the near wake before occurrence of the three-dimensional evolution is provided. |
| Keyword | Transition Wave Nonlinear Interaction Near Wake Circular Cylinder |
| DOI | 10.1007/BF02878925 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:A1997XR15900009 |
| WOS Research Area | Mathematics |
| WOS Subject | Mathematics, Applied ; Mathematics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/38998 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Ling, GC (reprint author), CHINESE ACAD SCI,INST MECH,LAB NONLINEAR MECH CONTINUOUS MEDIA,BEIJING 100080,PEOPLES R CHINA. |
| Recommended Citation GB/T 7714 | Ling GC,Chwang AT,Niu JY,et al. Transition waves and nonlinear interactions in the near wake of a circular cylinder[J]. Science in China Series A-Mathematics Physics Astronomy,1997,40,8,:849-859. |
| APA | 凌国灿,Chwang AT,牛家玉,Wang DJ,&Ling, GC .(1997).Transition waves and nonlinear interactions in the near wake of a circular cylinder.Science in China Series A-Mathematics Physics Astronomy,40(8),849-859. |
| MLA | 凌国灿,et al."Transition waves and nonlinear interactions in the near wake of a circular cylinder".Science in China Series A-Mathematics Physics Astronomy 40.8(1997):849-859. |
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