Gaudio, Roberto ; Miglio, Antonio ; Dey, Subhasish (2010) Non-universality of von Kérmén's κ in fluvial streams Journal of Hydraulic Research, 48 (5). pp. 658-663. ISSN 0022-1686
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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0022168...
Related URL: http://dx.doi.org/10.1080/00221686.2010.507338
Abstract
A distinguished universal aspect of wall-bounded turbulent flows is Theodore von Kérmén's universal logarithmic law (log-law) of the wall, describing the time-averaged streamwise velocity variation with distance from the wall. The log-law has a universal von Kérmén constant κ governing the velocity gradient. There remain a number of cases of the non-universality of κ in fluvial streams. In particular, it behaves as a variable in flows with low submergence, or if there is bed- and suspended-load transport. This research focuses on the non-universality of κ raising various issues and inviting future research directions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to International Association of Hydraulic Engineering and Research. |
| Keywords: | Hydraulics; One-dimensional Flow; Review; Sediment Bed; Stream Flow; von Kérmén Constant |
| ID Code: | 78816 |
| Deposited On: | 23 Jan 2012 04:03 |
| Last Modified: | 23 Jan 2012 04:03 |
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