Effect of reservoir side slopes on dam-break flood waves
Dam failure causes catastrophic flooding and immense damage downstream. There are many factors that affect the magnitude of such flash floods. In this study the influence of reservoir side slopes on dam-break hydrographs and water levels was investigated using experimental and numerical methods. Ide...
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| Veröffentlicht in: | Engineering applications of computational fluid mechanics 2015-01, Vol.9 (1), p.458-468 |
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| creator | Hooshyaripor, Farhad Tahershamsi, Ahmad |
| description | Dam failure causes catastrophic flooding and immense damage downstream. There are many factors that affect the magnitude of such flash floods. In this study the influence of reservoir side slopes on dam-break hydrographs and water levels was investigated using experimental and numerical methods. Ideal trapezoidal reservoirs with different side angles varying from 30° to 90° were examined in the laboratory, while the reservoir capacity and breach cross section were considered to be the same. Due to the experimental limitations for measuring the flow parameters at any required points, 3D-numerical modeling was used. The results showed that the dam-break flood from the reservoir with a 30° side slope has the highest peak-discharge, the sharpest rising and recession limbs of the hydrograph, and the earliest maximum water level and discharge. Based on the results, in view of risk assessment, the reservoirs with lower side slopes are expected to have more potential risk for damage in the event of dam break. |
| doi_str_mv | 10.1080/19942060.2015.1039630 |
| format | Article |
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There are many factors that affect the magnitude of such flash floods. In this study the influence of reservoir side slopes on dam-break hydrographs and water levels was investigated using experimental and numerical methods. Ideal trapezoidal reservoirs with different side angles varying from 30° to 90° were examined in the laboratory, while the reservoir capacity and breach cross section were considered to be the same. Due to the experimental limitations for measuring the flow parameters at any required points, 3D-numerical modeling was used. The results showed that the dam-break flood from the reservoir with a 30° side slope has the highest peak-discharge, the sharpest rising and recession limbs of the hydrograph, and the earliest maximum water level and discharge. Based on the results, in view of risk assessment, the reservoirs with lower side slopes are expected to have more potential risk for damage in the event of dam break.</description><identifier>ISSN: 1994-2060</identifier><identifier>EISSN: 1997-003X</identifier><identifier>DOI: 10.1080/19942060.2015.1039630</identifier><language>eng</language><publisher>Hong Kong: Taylor & Francis</publisher><subject>Catastrophic failure analysis ; dam break ; Damage ; Dams ; experimental method ; Experimental methods ; Flash floods ; Flood control ; Flooding ; Floods ; Numerical methods ; numerical simulation ; outflow hydrograph ; reservoir side slope ; Reservoirs ; Risk assessment ; Slopes ; Three dimensional models ; Water discharge ; Water levels</subject><ispartof>Engineering applications of computational fluid mechanics, 2015-01, Vol.9 (1), p.458-468</ispartof><rights>2015 The Author(s). Published by Taylor & Francis. 2015</rights><rights>2015 The Author(s). Published by Taylor & Francis. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). 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There are many factors that affect the magnitude of such flash floods. In this study the influence of reservoir side slopes on dam-break hydrographs and water levels was investigated using experimental and numerical methods. Ideal trapezoidal reservoirs with different side angles varying from 30° to 90° were examined in the laboratory, while the reservoir capacity and breach cross section were considered to be the same. Due to the experimental limitations for measuring the flow parameters at any required points, 3D-numerical modeling was used. The results showed that the dam-break flood from the reservoir with a 30° side slope has the highest peak-discharge, the sharpest rising and recession limbs of the hydrograph, and the earliest maximum water level and discharge. Based on the results, in view of risk assessment, the reservoirs with lower side slopes are expected to have more potential risk for damage in the event of dam break.</description><subject>Catastrophic failure analysis</subject><subject>dam break</subject><subject>Damage</subject><subject>Dams</subject><subject>experimental method</subject><subject>Experimental methods</subject><subject>Flash floods</subject><subject>Flood control</subject><subject>Flooding</subject><subject>Floods</subject><subject>Numerical methods</subject><subject>numerical simulation</subject><subject>outflow hydrograph</subject><subject>reservoir side slope</subject><subject>Reservoirs</subject><subject>Risk assessment</subject><subject>Slopes</subject><subject>Three dimensional models</subject><subject>Water discharge</subject><subject>Water levels</subject><issn>1994-2060</issn><issn>1997-003X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>0YH</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp9kM1qwzAQhEVpoSHNIxQEPTtdSZZl3VpC-gOBXnLoTaxtCdw6VrpyE_L2dZr02tMOw8wsfIzdCpgLKOFeWJtLKGAuQejRUrZQcMEmo28yAPV--avz7Bi6ZrOU2go0GCWEySesXIbg64HHwMknT7vYEk9t43nq4tYnHnve4CaryOMnD12MDd_jzqcbdhWwS352vlO2flquFy_Z6u35dfG4ympV6iGrIECh0JQgvdRGBCxMsMIIbTCX3tqyyqVt0NZgjTQKpKokhqIyGlSNasruTrNbil_fPg3uI35TP350UkpbaFkYPab0KVVTTIl8cFtqN0gHJ8AdMbk_TO6IyZ0xjb2HU6_tQ6QN7iN1jRvw0EUKhH3dJqf-n_gB23tsJQ</recordid><startdate>20150101</startdate><enddate>20150101</enddate><creator>Hooshyaripor, Farhad</creator><creator>Tahershamsi, Ahmad</creator><general>Taylor & Francis</general><general>Taylor & Francis Ltd</general><scope>0YH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TC</scope><scope>7XB</scope><scope>8FD</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>KR7</scope><scope>M2O</scope><scope>MBDVC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope></search><sort><creationdate>20150101</creationdate><title>Effect of reservoir side slopes on dam-break flood waves</title><author>Hooshyaripor, Farhad ; Tahershamsi, Ahmad</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-b0f063a7802e2571fa67f917157a42e998b429da9c097273023b2af6b7503ca3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Catastrophic failure analysis</topic><topic>dam break</topic><topic>Damage</topic><topic>Dams</topic><topic>experimental method</topic><topic>Experimental methods</topic><topic>Flash floods</topic><topic>Flood control</topic><topic>Flooding</topic><topic>Floods</topic><topic>Numerical methods</topic><topic>numerical simulation</topic><topic>outflow hydrograph</topic><topic>reservoir side slope</topic><topic>Reservoirs</topic><topic>Risk assessment</topic><topic>Slopes</topic><topic>Three dimensional models</topic><topic>Water discharge</topic><topic>Water levels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hooshyaripor, Farhad</creatorcontrib><creatorcontrib>Tahershamsi, Ahmad</creatorcontrib><collection>Taylor & Francis Open Access</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Mechanical Engineering Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Technology Research Database</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Civil Engineering Abstracts</collection><collection>Research Library</collection><collection>Research Library (Corporate)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><jtitle>Engineering applications of computational fluid mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hooshyaripor, Farhad</au><au>Tahershamsi, Ahmad</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of reservoir side slopes on dam-break flood waves</atitle><jtitle>Engineering applications of computational fluid mechanics</jtitle><date>2015-01-01</date><risdate>2015</risdate><volume>9</volume><issue>1</issue><spage>458</spage><epage>468</epage><pages>458-468</pages><issn>1994-2060</issn><eissn>1997-003X</eissn><abstract>Dam failure causes catastrophic flooding and immense damage downstream. There are many factors that affect the magnitude of such flash floods. In this study the influence of reservoir side slopes on dam-break hydrographs and water levels was investigated using experimental and numerical methods. Ideal trapezoidal reservoirs with different side angles varying from 30° to 90° were examined in the laboratory, while the reservoir capacity and breach cross section were considered to be the same. Due to the experimental limitations for measuring the flow parameters at any required points, 3D-numerical modeling was used. The results showed that the dam-break flood from the reservoir with a 30° side slope has the highest peak-discharge, the sharpest rising and recession limbs of the hydrograph, and the earliest maximum water level and discharge. 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| source | Taylor & Francis Open Access; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Catastrophic failure analysis dam break Damage Dams experimental method Experimental methods Flash floods Flood control Flooding Floods Numerical methods numerical simulation outflow hydrograph reservoir side slope Reservoirs Risk assessment Slopes Three dimensional models Water discharge Water levels |
| title | Effect of reservoir side slopes on dam-break flood waves |
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