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Water surface profiles in side channel spillways : comparisons between computed and experimental values
This thesis is an investigation into the water surface profiles found in side channel spillways. The classical method proposed by Hinds is investigated, with specific reference to the water surface slope equation. A literature review is given on the evolution of the theory, from the conceptual ideas...
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| Format: | Thesis |
| Language: | English |
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Department of Civil Engineering
2016
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| _version_ | 1867613341878321152 |
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| access_status_str | Open Access |
| author | Cullen, James |
| author2 | Kilner, F A |
| author_browse | Cullen, James Kilner, F A |
| author_facet | Kilner, F A Cullen, James |
| author_sort | Cullen, James |
| collection | Thesis |
| description | This thesis is an investigation into the water surface profiles found in side channel spillways. The classical method proposed by Hinds is investigated, with specific reference to the water surface slope equation. A literature review is given on the evolution of the theory, from the conceptual ideas of Hinds through to a systematic method of analysis. Experimental methods used over the years are also discussed. A computer program called WSPISCS (Water Surface Profiles In Side Channel Spillways), is developed to calculate the water surface profile. This in turn alleviates the laborious and tedious hand calculations necessary in the past. An iterative, step by step calculation of the water surface profile from .a known control point is conducted. A Runge Kutta fourth order algorithm is employed for the numerical integration. The program is verified with previous hand calculated examples, including the classical example calculated by Hinds. A thorough sensitivity analysis is conducted with regard to the magnitude of the step length, and also to the location of the starting point. Comparisons are made with experimental results obtained over a number of years of undergraduate research. The correlation between the calculated and experimental profiles is generally good. The only exception is a horizontal receiving channel with a hydraulically steep outflow chute, where the experimental profile falls below the calculated one as the inflow rate increases. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/18791 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:36.552Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Civil Engineering |
| publisherStr | Department of Civil Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/18791 Water surface profiles in side channel spillways : comparisons between computed and experimental values Cullen, James Kilner, F A Spillways This thesis is an investigation into the water surface profiles found in side channel spillways. The classical method proposed by Hinds is investigated, with specific reference to the water surface slope equation. A literature review is given on the evolution of the theory, from the conceptual ideas of Hinds through to a systematic method of analysis. Experimental methods used over the years are also discussed. A computer program called WSPISCS (Water Surface Profiles In Side Channel Spillways), is developed to calculate the water surface profile. This in turn alleviates the laborious and tedious hand calculations necessary in the past. An iterative, step by step calculation of the water surface profile from .a known control point is conducted. A Runge Kutta fourth order algorithm is employed for the numerical integration. The program is verified with previous hand calculated examples, including the classical example calculated by Hinds. A thorough sensitivity analysis is conducted with regard to the magnitude of the step length, and also to the location of the starting point. Comparisons are made with experimental results obtained over a number of years of undergraduate research. The correlation between the calculated and experimental profiles is generally good. The only exception is a horizontal receiving channel with a hydraulically steep outflow chute, where the experimental profile falls below the calculated one as the inflow rate increases. 2016-04-12T09:34:50Z 2016-04-12T09:34:50Z 1989 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/18791 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Spillways Cullen, James Water surface profiles in side channel spillways : comparisons between computed and experimental values |
| thesis_degree_str | Master's |
| title | Water surface profiles in side channel spillways : comparisons between computed and experimental values |
| title_full | Water surface profiles in side channel spillways : comparisons between computed and experimental values |
| title_fullStr | Water surface profiles in side channel spillways : comparisons between computed and experimental values |
| title_full_unstemmed | Water surface profiles in side channel spillways : comparisons between computed and experimental values |
| title_short | Water surface profiles in side channel spillways : comparisons between computed and experimental values |
| title_sort | water surface profiles in side channel spillways comparisons between computed and experimental values |
| topic | Spillways |
| url | http://hdl.handle.net/11427/18791 |
| work_keys_str_mv | AT cullenjames watersurfaceprofilesinsidechannelspillwayscomparisonsbetweencomputedandexperimentalvalues |