Experimental Study of Flow Characteristics in Vortex Drop Shaft
AbstractVortex drop shafts are utilized to dissipate and transport the energy of flows in sewerage networks. A vortex drop shaft is composed of three parts: the inlet structure, the vertical shaft, and the dissipation chamber. This study evaluated the performance of the dissipation chamber in terms...
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| Veröffentlicht in: | Journal of pipeline systems 2021-08, Vol.12 (3) |
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| creator | Hajiahmadi, Amin Ghaeini-Hessaroeyeh, Mahnaz Khanjani, Mohammad-Javad |
| description | AbstractVortex drop shafts are utilized to dissipate and transport the energy of flows in sewerage networks. A vortex drop shaft is composed of three parts: the inlet structure, the vertical shaft, and the dissipation chamber. This study evaluated the performance of the dissipation chamber in terms of flow energy dissipation, the type of outflow (e.g., subcritical and supercritical), and the amount of pressure imposing on the chamber bottom. To improve the performance of the dissipation chamber, four elements—a baffle, a weir, a venturi, and a sump—were implemented. Then the influence of each element on the performance of the dissipation chamber was investigated. The results revealed that such elements dissipated the inflow to the chamber by 90.5%–96.9%. These elements also take part in controlling outflow and decreasing pressure on the chamber bottom. Considering flow energy dissipation, the type of outflow and imposing pressure on the dissipation chamber bottom, appropriate geometric dimensions for the elements inside the dissipation chamber are proposed. |
| doi_str_mv | 10.1061/(ASCE)PS.1949-1204.0000573 |
| format | Article |
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A vortex drop shaft is composed of three parts: the inlet structure, the vertical shaft, and the dissipation chamber. This study evaluated the performance of the dissipation chamber in terms of flow energy dissipation, the type of outflow (e.g., subcritical and supercritical), and the amount of pressure imposing on the chamber bottom. To improve the performance of the dissipation chamber, four elements—a baffle, a weir, a venturi, and a sump—were implemented. Then the influence of each element on the performance of the dissipation chamber was investigated. The results revealed that such elements dissipated the inflow to the chamber by 90.5%–96.9%. These elements also take part in controlling outflow and decreasing pressure on the chamber bottom. Considering flow energy dissipation, the type of outflow and imposing pressure on the dissipation chamber bottom, appropriate geometric dimensions for the elements inside the dissipation chamber are proposed.</description><identifier>ISSN: 1949-1190</identifier><identifier>EISSN: 1949-1204</identifier><identifier>DOI: 10.1061/(ASCE)PS.1949-1204.0000573</identifier><language>eng</language><publisher>Reston: American Society of Civil Engineers</publisher><subject>Chambers ; Dimensions ; Energy dissipation ; Energy exchange ; Excavation ; Flow characteristics ; Fluid flow ; Inflow ; Outflow ; Performance enhancement ; Performance evaluation ; Pressure ; Sewage ; Technical Papers ; Vortices ; Weirs</subject><ispartof>Journal of pipeline systems, 2021-08, Vol.12 (3)</ispartof><rights>2021 American Society of Civil Engineers</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a337t-5c0a755360b0f0e1a7de3f56565f4a325381930127d9fa2b121eff0efaa31ebc3</citedby><cites>FETCH-LOGICAL-a337t-5c0a755360b0f0e1a7de3f56565f4a325381930127d9fa2b121eff0efaa31ebc3</cites><orcidid>0000-0003-1418-1538</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)PS.1949-1204.0000573$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)PS.1949-1204.0000573$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,75940,75948</link.rule.ids></links><search><creatorcontrib>Hajiahmadi, Amin</creatorcontrib><creatorcontrib>Ghaeini-Hessaroeyeh, Mahnaz</creatorcontrib><creatorcontrib>Khanjani, Mohammad-Javad</creatorcontrib><title>Experimental Study of Flow Characteristics in Vortex Drop Shaft</title><title>Journal of pipeline systems</title><description>AbstractVortex drop shafts are utilized to dissipate and transport the energy of flows in sewerage networks. A vortex drop shaft is composed of three parts: the inlet structure, the vertical shaft, and the dissipation chamber. This study evaluated the performance of the dissipation chamber in terms of flow energy dissipation, the type of outflow (e.g., subcritical and supercritical), and the amount of pressure imposing on the chamber bottom. To improve the performance of the dissipation chamber, four elements—a baffle, a weir, a venturi, and a sump—were implemented. Then the influence of each element on the performance of the dissipation chamber was investigated. The results revealed that such elements dissipated the inflow to the chamber by 90.5%–96.9%. These elements also take part in controlling outflow and decreasing pressure on the chamber bottom. Considering flow energy dissipation, the type of outflow and imposing pressure on the dissipation chamber bottom, appropriate geometric dimensions for the elements inside the dissipation chamber are proposed.</description><subject>Chambers</subject><subject>Dimensions</subject><subject>Energy dissipation</subject><subject>Energy exchange</subject><subject>Excavation</subject><subject>Flow characteristics</subject><subject>Fluid flow</subject><subject>Inflow</subject><subject>Outflow</subject><subject>Performance enhancement</subject><subject>Performance evaluation</subject><subject>Pressure</subject><subject>Sewage</subject><subject>Technical Papers</subject><subject>Vortices</subject><subject>Weirs</subject><issn>1949-1190</issn><issn>1949-1204</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kMFOAjEQhhujiQR5h0YveljstNtd14shK6gJiSSrXpthaQME6dqWCG9vN4Ce7BzaTP9vmn6EXALrA8vg9npQlcObSdWHIi0S4Czts7hkLk5I57d3ejxDwc5Jz_tlGxKQ8hQ65GG4bbRbfOp1wBWtwma2o9bQ0cp-03KODusQr31Y1J4u1vTDuqC39NHZhlZzNOGCnBlced077F3yPhq-lc_J-PXppRyMExQiD4msGeZSioxNmWEaMJ9pYWQWy6QouBR3UAgGPJ8VBvkUOGgTgwZRgJ7Wokuu9nMbZ7822ge1tBu3jk-qCMs8Z5zJmLrfp2pnvXfaqCb-Dd1OAVOtM6VaZ2pSqdaJav2og7MIZ3sYfa3_xh_J_8EfSz9vGQ</recordid><startdate>20210801</startdate><enddate>20210801</enddate><creator>Hajiahmadi, Amin</creator><creator>Ghaeini-Hessaroeyeh, Mahnaz</creator><creator>Khanjani, Mohammad-Javad</creator><general>American Society of Civil Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0003-1418-1538</orcidid></search><sort><creationdate>20210801</creationdate><title>Experimental Study of Flow Characteristics in Vortex Drop Shaft</title><author>Hajiahmadi, Amin ; Ghaeini-Hessaroeyeh, Mahnaz ; Khanjani, Mohammad-Javad</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a337t-5c0a755360b0f0e1a7de3f56565f4a325381930127d9fa2b121eff0efaa31ebc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Chambers</topic><topic>Dimensions</topic><topic>Energy dissipation</topic><topic>Energy exchange</topic><topic>Excavation</topic><topic>Flow characteristics</topic><topic>Fluid flow</topic><topic>Inflow</topic><topic>Outflow</topic><topic>Performance enhancement</topic><topic>Performance evaluation</topic><topic>Pressure</topic><topic>Sewage</topic><topic>Technical Papers</topic><topic>Vortices</topic><topic>Weirs</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hajiahmadi, Amin</creatorcontrib><creatorcontrib>Ghaeini-Hessaroeyeh, Mahnaz</creatorcontrib><creatorcontrib>Khanjani, Mohammad-Javad</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of pipeline systems</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hajiahmadi, Amin</au><au>Ghaeini-Hessaroeyeh, Mahnaz</au><au>Khanjani, Mohammad-Javad</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental Study of Flow Characteristics in Vortex Drop Shaft</atitle><jtitle>Journal of pipeline systems</jtitle><date>2021-08-01</date><risdate>2021</risdate><volume>12</volume><issue>3</issue><issn>1949-1190</issn><eissn>1949-1204</eissn><abstract>AbstractVortex drop shafts are utilized to dissipate and transport the energy of flows in sewerage networks. A vortex drop shaft is composed of three parts: the inlet structure, the vertical shaft, and the dissipation chamber. This study evaluated the performance of the dissipation chamber in terms of flow energy dissipation, the type of outflow (e.g., subcritical and supercritical), and the amount of pressure imposing on the chamber bottom. To improve the performance of the dissipation chamber, four elements—a baffle, a weir, a venturi, and a sump—were implemented. Then the influence of each element on the performance of the dissipation chamber was investigated. The results revealed that such elements dissipated the inflow to the chamber by 90.5%–96.9%. These elements also take part in controlling outflow and decreasing pressure on the chamber bottom. Considering flow energy dissipation, the type of outflow and imposing pressure on the dissipation chamber bottom, appropriate geometric dimensions for the elements inside the dissipation chamber are proposed.</abstract><cop>Reston</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)PS.1949-1204.0000573</doi><orcidid>https://orcid.org/0000-0003-1418-1538</orcidid></addata></record> |
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| identifier | ISSN: 1949-1190 |
| ispartof | Journal of pipeline systems, 2021-08, Vol.12 (3) |
| issn | 1949-1190 1949-1204 |
| language | eng |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Chambers Dimensions Energy dissipation Energy exchange Excavation Flow characteristics Fluid flow Inflow Outflow Performance enhancement Performance evaluation Pressure Sewage Technical Papers Vortices Weirs |
| title | Experimental Study of Flow Characteristics in Vortex Drop Shaft |
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