| Abstract: | Discharges through 10 selected coastal control structures in Broward and Palm Beach Counties, Florida, are presently computed using the theoretical discharge-coefficient ratings developed from scale modeling, theoretical discharge coefficients, and some field calibrations whose accuracies for specific sites are unknown. To achieve more accurate discharge-coefficient ratings for the coastal control structures, field discharge measurements were taken with an Acoustic Doppler Current Profiler at the coastal control structures under a variety of flow conditions. These measurements were used to determine computed discharge-coefficient ratings for the coastal control structures under different flow regimes: submerged orifice flow, submerged weir flow, free orifice flow, and free weir flow. Theoretical and computed discharge-coefficient ratings for submerged orifice and weir flows were determined at seven coastal control structures, and discharge ratings for free orifice and weir flows were determined at three coastal control structures. The difference between the theoretical and computed discharge-coefficient ratings varied from structure to structure. The theoretical and computed dischargecoefficient ratings for submerged orifice flow were within 10 percent at four of seven coastal control structures; however, differences greater than 20 percent were found at two of the seven structures. The theoretical and computed discharge-coefficient ratings for submerged weir flow were within 10 percent at three of seven coastal control structures; however, differences greater than 20 percent were found at four of the seven coastal control structures. The difference between theoretical and computed discharge-coefficient ratings for free orifice and free weir flows ranged from 5 to 32 percent. Some differences between the theoretical and computed discharge-coefficient ratings could be better defined with more data collected over a greater distribution of measuring conditions. |
| Genre: | USGS Numbered Series |
| ProdID: | 30156 |
| Citation Author: | Tillis, G. M.; Swain, E. D. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 37 p. :ill. (some col.) ;28 cm. |
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| Citation Publisher: | U.S. Dept. of the Interior, U.S. Geological Survey ;
Branch of Information Services [distributor], |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 98-4007 |
| Citation Search Results Text: | Determining discharge-coefficient ratings for selected coastal control structures in Broward and Palm Beach counties, Florida; 1998; WRI; 98-4007; Tillis, G. M.; Swain, E. D. |
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| Citation Year: | 1998 |
| Type: | citation/reference |
| Text: | Determining discharge-coefficient ratings for selected coastal control structures in Broward and Palm Beach counties, Florida; 1998; WRI; 98-4007; Tillis, G. M.; Swain, E. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.water.usgs.gov/wri984007/ |
| Date Other: | Wed, 1 Nov 2000 00:00 -0600 |
| Publisher: | U.S. Dept. of the Interior, U.S. Geological Survey ;
Branch of Information Services [distributor], |
