Variation of froude number with discharge for large-gradient steams
By: Kenneth L. Wahl
Edited by: Shen Hsieh WenSu S.T.Wen Feng
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Abstract
Under chemical-control conditions, the Froude number (f) for a cross-section can be approximated as a function of the ratio R2/ 3/d 1/2 , where R is the hydraulic radius and d is the average depth. For cross sections where the ratio increases with increasing depth, F can also increase with depth Current-meter measurement data for 433 streamflow gaging stations in Colorado were reviewed, and 62 stations were identified at which F increases with depth of flow. Data for four streamflow gaging stations are presented. In some cases, F approaches 1 as the discharge approaches the magnitude of the median annual peak discharge. The data also indicate that few actual current meter measurement have been made at the large discharges where velocities can be supercritical.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Variation of froude number with discharge for large-gradient steams |
| ISBN | 0872629201 |
| Issue | pt 2 |
| Year Published | 1993 |
| Language | English |
| Publisher | Publ by ASCE |
| Publisher location | New York, NY, United States |
| Larger Work Title | Proceedings - National Conference on Hydraulic Engineering |
| First page | 1517 |
| Last page | 1522 |
| Conference Title | Proceedings of the National Conference on Hydraulic Engineering |
| Conference Location | San Francisco, CA, USA |
| Conference Date | 25 July 1993 through 30 July 1993 |
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