Spatial characteristics of dynamic properties of modulated wavy vortex flow in a rotating Couette system
In: Experiments in Fluids, Jg. 13 (1992-06-01), S. 199-207
Online
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Zugriff:
Time-dependent velocity profiles Vz(z, t) have been measured in a cylindrical Couette system for a range of Reynolds numbers corresponding to wavy vortex flow (WVF) and modulated wavy vortex flow (MWV). The spatial distribution of the power spectrum was obtained and the behaviour of the dynamic properties of WVF and MWV was investigated with respect to Reynolds number (Re) at four corners of cells (inside-outside and Inflow-Outflow). All modes of f1, f2 and B were found to be equally strong and broad at different corners for lower Re number. At large Re, however, f2 remains broad only at the outside-Inflow corner, while B is strong at Outflow. It was also found that B disappears at the outside-Inflow corner for R* > 18. These results suggest that the dynamic properties of WVF and MWV would have a spatial dependence within a cell structure scale.
| Titel: |
Spatial characteristics of dynamic properties of modulated wavy vortex flow in a rotating Couette system
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| Autor/in / Beteiligte Person: | Takada, T. ; Kobashi, K. ; Takeda, Yasushi ; Fischer, W. E. |
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| Zeitschrift: | Experiments in Fluids, Jg. 13 (1992-06-01), S. 199-207 |
| Veröffentlichung: | Springer Science and Business Media LLC, 1992 |
| Medientyp: | unknown |
| ISSN: | 1432-1114 (print) ; 0723-4864 (print) |
| DOI: | 10.1007/bf00218167 |
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