ISSN:
1432-1114
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Time-dependent velocity profiles V z (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 f 1, f 2 and B were found to be equally strong and broad at different corners for lower Re number. At large Re, however, f 2 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00218167
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