Dey, S. (2001) Flow measurement by the end-depth method in inverted semicircular channels Flow Measurement and Instrumentation, 12 (4). pp. 253-258. ISSN 0955-5986
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0955-5986(01)00029-2
Abstract
A free overfall at the end of an open channel provides a simple means for measuring flow discharge. The paper presents a simplified approach for the computation of end-depth of a free overfall in horizontal or mildly sloping inverted semicircular channels. Using a known end-depth the discharge can be estimated. The flow over a free overfall in an inverted semicircular channel is simulated by that over a sharp-crested weir to calculate the end-depth-ratio (EDR). The mathematical model is calibrated by the experimental data, making the coefficient of velocity a free parameter. The EDR, related to the critical depth, is around 0.705 for a critical depth-diameter ratio up to 0.42. The computed results agree satisfactorily with the experimental data.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Brink Depth; Semicircular Channels; End-depth; Free Overfall; Hydraulics; One-dimensional Flow; Open Channel Flow; Flow Measurement |
| ID Code: | 79069 |
| Deposited On: | 24 Jan 2012 07:30 |
| Last Modified: | 24 Jan 2012 07:30 |
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