Numerical and Physical Modeling to Improve Discharge Rates in Open Channel Infrastructures
This paper presents the findings of a study into how different inlet designs for stormwater culverts increase the discharge rate. The objective of the study was to develop improved inlet designs that could be retro-fitted to existing stormwater culvert structures in order to increase discharge capac...
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| Veröffentlicht in: | Water (Basel) 2019-07, Vol.11 (7), p.1414 |
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| creator | Jaeger, Rick Tondera, Katharina Jacobs, Carolyn Porter, Mark Tindale, Neil |
| description | This paper presents the findings of a study into how different inlet designs for stormwater culverts increase the discharge rate. The objective of the study was to develop improved inlet designs that could be retro-fitted to existing stormwater culvert structures in order to increase discharge capacity and allow for changing rainfall patterns and severe weather events that are expected as a consequence of climate change. Three different chamfer angles and a rounded corner were simulated with the software ANSYS Fluent, each of the shapes tested in five different sizes. Rounded and 45 ∘ chamfers at the inlet edge performed best, significantly increasing the flow rate, though the size of the configurations was a critical factor. Inlet angles of 30 ∘ and 60 ∘ caused greater turbulence in the simulations than did 45 ∘ and the rounded corner. The best performing shape of the inlet, the rounded corner, was tested in an experimental flume. The flume flow experiment showed that the optimal inlet configuration, a rounded inlet (radius = 1/5 culvert width) improved the flow rate by up to 20% under submerged inlet control conditions. |
| doi_str_mv | 10.3390/w11071414 |
| format | Article |
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The objective of the study was to develop improved inlet designs that could be retro-fitted to existing stormwater culvert structures in order to increase discharge capacity and allow for changing rainfall patterns and severe weather events that are expected as a consequence of climate change. Three different chamfer angles and a rounded corner were simulated with the software ANSYS Fluent, each of the shapes tested in five different sizes. Rounded and 45 ∘ chamfers at the inlet edge performed best, significantly increasing the flow rate, though the size of the configurations was a critical factor. Inlet angles of 30 ∘ and 60 ∘ caused greater turbulence in the simulations than did 45 ∘ and the rounded corner. The best performing shape of the inlet, the rounded corner, was tested in an experimental flume. The flume flow experiment showed that the optimal inlet configuration, a rounded inlet (radius = 1/5 culvert width) improved the flow rate by up to 20% under submerged inlet control conditions.</description><identifier>ISSN: 2073-4441</identifier><identifier>EISSN: 2073-4441</identifier><identifier>DOI: 10.3390/w11071414</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Chamfering ; Climate change ; Computational fluid dynamics ; Configurations ; Culverts ; Design ; Discharge capacity ; Flow rates ; Flow velocity ; Hydraulics ; Investigations ; Open channels ; Partial differential equations ; Rainfall ; Simulation ; Stormwater ; Velocity ; Viscosity</subject><ispartof>Water (Basel), 2019-07, Vol.11 (7), p.1414</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c292t-574bc787c2c644e37c4d9169909ca13e3ff5cd8c9051863b1b4414059443611b3</citedby><cites>FETCH-LOGICAL-c292t-574bc787c2c644e37c4d9169909ca13e3ff5cd8c9051863b1b4414059443611b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Jaeger, Rick</creatorcontrib><creatorcontrib>Tondera, Katharina</creatorcontrib><creatorcontrib>Jacobs, Carolyn</creatorcontrib><creatorcontrib>Porter, Mark</creatorcontrib><creatorcontrib>Tindale, Neil</creatorcontrib><title>Numerical and Physical Modeling to Improve Discharge Rates in Open Channel Infrastructures</title><title>Water (Basel)</title><description>This paper presents the findings of a study into how different inlet designs for stormwater culverts increase the discharge rate. The objective of the study was to develop improved inlet designs that could be retro-fitted to existing stormwater culvert structures in order to increase discharge capacity and allow for changing rainfall patterns and severe weather events that are expected as a consequence of climate change. Three different chamfer angles and a rounded corner were simulated with the software ANSYS Fluent, each of the shapes tested in five different sizes. Rounded and 45 ∘ chamfers at the inlet edge performed best, significantly increasing the flow rate, though the size of the configurations was a critical factor. Inlet angles of 30 ∘ and 60 ∘ caused greater turbulence in the simulations than did 45 ∘ and the rounded corner. The best performing shape of the inlet, the rounded corner, was tested in an experimental flume. The flume flow experiment showed that the optimal inlet configuration, a rounded inlet (radius = 1/5 culvert width) improved the flow rate by up to 20% under submerged inlet control conditions.</description><subject>Chamfering</subject><subject>Climate change</subject><subject>Computational fluid dynamics</subject><subject>Configurations</subject><subject>Culverts</subject><subject>Design</subject><subject>Discharge capacity</subject><subject>Flow rates</subject><subject>Flow velocity</subject><subject>Hydraulics</subject><subject>Investigations</subject><subject>Open channels</subject><subject>Partial differential equations</subject><subject>Rainfall</subject><subject>Simulation</subject><subject>Stormwater</subject><subject>Velocity</subject><subject>Viscosity</subject><issn>2073-4441</issn><issn>2073-4441</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpNUMtOwzAQtBBIVKUH_sASJw4Bb7xO4iMqr0qFIgQXLpHjbNpUqVPsBNS_J1CE2MvsSKOdnWHsFMSFlFpcfgKIFBDwgI1ikcoIEeHw337MJiGsxTCos0yJEXt77Dfka2sablzJn1a78EMe2pKa2i151_LZZuvbD-LXdbAr45fEn01HgdeOL7bk-HRlnKOGz1zlTeh8b7veUzhhR5VpAk1-ccxeb29epvfRfHE3m17NIxvruItUioVNs9TGNkEkmVosNSRaC20NSJJVpWyZWS0UZIksoBiCoFAaUSYAhRyzs_3d4cv3nkKXr9veu8Eyj5USmCghcVCd71XWtyF4qvKtrzfG73IQ-Xd7-V978guFil_c</recordid><startdate>20190701</startdate><enddate>20190701</enddate><creator>Jaeger, Rick</creator><creator>Tondera, Katharina</creator><creator>Jacobs, Carolyn</creator><creator>Porter, Mark</creator><creator>Tindale, Neil</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20190701</creationdate><title>Numerical and Physical Modeling to Improve Discharge Rates in Open Channel Infrastructures</title><author>Jaeger, Rick ; Tondera, Katharina ; Jacobs, Carolyn ; Porter, Mark ; Tindale, Neil</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c292t-574bc787c2c644e37c4d9169909ca13e3ff5cd8c9051863b1b4414059443611b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Chamfering</topic><topic>Climate change</topic><topic>Computational fluid dynamics</topic><topic>Configurations</topic><topic>Culverts</topic><topic>Design</topic><topic>Discharge capacity</topic><topic>Flow rates</topic><topic>Flow velocity</topic><topic>Hydraulics</topic><topic>Investigations</topic><topic>Open channels</topic><topic>Partial differential equations</topic><topic>Rainfall</topic><topic>Simulation</topic><topic>Stormwater</topic><topic>Velocity</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jaeger, Rick</creatorcontrib><creatorcontrib>Tondera, Katharina</creatorcontrib><creatorcontrib>Jacobs, Carolyn</creatorcontrib><creatorcontrib>Porter, Mark</creatorcontrib><creatorcontrib>Tindale, Neil</creatorcontrib><collection>CrossRef</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>Access via ProQuest (Open Access)</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><jtitle>Water (Basel)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jaeger, Rick</au><au>Tondera, Katharina</au><au>Jacobs, Carolyn</au><au>Porter, Mark</au><au>Tindale, Neil</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical and Physical Modeling to Improve Discharge Rates in Open Channel Infrastructures</atitle><jtitle>Water (Basel)</jtitle><date>2019-07-01</date><risdate>2019</risdate><volume>11</volume><issue>7</issue><spage>1414</spage><pages>1414-</pages><issn>2073-4441</issn><eissn>2073-4441</eissn><abstract>This paper presents the findings of a study into how different inlet designs for stormwater culverts increase the discharge rate. The objective of the study was to develop improved inlet designs that could be retro-fitted to existing stormwater culvert structures in order to increase discharge capacity and allow for changing rainfall patterns and severe weather events that are expected as a consequence of climate change. Three different chamfer angles and a rounded corner were simulated with the software ANSYS Fluent, each of the shapes tested in five different sizes. Rounded and 45 ∘ chamfers at the inlet edge performed best, significantly increasing the flow rate, though the size of the configurations was a critical factor. Inlet angles of 30 ∘ and 60 ∘ caused greater turbulence in the simulations than did 45 ∘ and the rounded corner. The best performing shape of the inlet, the rounded corner, was tested in an experimental flume. The flume flow experiment showed that the optimal inlet configuration, a rounded inlet (radius = 1/5 culvert width) improved the flow rate by up to 20% under submerged inlet control conditions.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/w11071414</doi><oa>free_for_read</oa></addata></record> |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals |
| subjects | Chamfering Climate change Computational fluid dynamics Configurations Culverts Design Discharge capacity Flow rates Flow velocity Hydraulics Investigations Open channels Partial differential equations Rainfall Simulation Stormwater Velocity Viscosity |
| title | Numerical and Physical Modeling to Improve Discharge Rates in Open Channel Infrastructures |
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