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Influence of artificial ecological floating beds on river hydraulic characteristics
The artificial ecological floating bed is widely used in rivers and lakes to repair and purify polluted water. However, the water flow pattern and the water level distribution are significantly changed by the floating beds, and the influence on the water flow is different from that of aquatic plants...
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Published in: | Journal of hydrodynamics. Series B 2014-07, Vol.26 (3), p.474-481 |
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creator | 饶磊 钱进 敖燕辉 |
description | The artificial ecological floating bed is widely used in rivers and lakes to repair and purify polluted water. However, the water flow pattern and the water level distribution are significantly changed by the floating beds, and the influence on the water flow is different from that of aquatic plants. In this paper, based on the continuous porous media model, a moveable two-layer combination model is built to describe the floating bed. The influences of the floating beds on the water flow characteristics are studied by numerical simulations and experiments using an experimental water channel. The variations of the water level distribution are discussed under conditions of different flow velocities( v= 0.1 m/s, 0.2 m/s, 0.30 m/s, 0.4 m/s), floating bed coverage rates(20%, 40%, 60%) and arrangement positions away from the channel wall( D= 0 m, 0.1 m, 0.2 m). The results indicate that the flow velocity increases under the floating beds, and the water level rises significantly under high flow velocity conditions in the upstream region and the floating bed region. In addition, the average rising water level value(ARWLV) increases significantly with the increase of the floating bed coverage rate, and the arrangement position of floating beds in the river can also greatly influence the water level distribution under a high-flow velocity condition(v ?0.2 m /s). |
doi_str_mv | 10.1016/S1001-6058(14)60054-8 |
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However, the water flow pattern and the water level distribution are significantly changed by the floating beds, and the influence on the water flow is different from that of aquatic plants. In this paper, based on the continuous porous media model, a moveable two-layer combination model is built to describe the floating bed. The influences of the floating beds on the water flow characteristics are studied by numerical simulations and experiments using an experimental water channel. The variations of the water level distribution are discussed under conditions of different flow velocities( v= 0.1 m/s, 0.2 m/s, 0.30 m/s, 0.4 m/s), floating bed coverage rates(20%, 40%, 60%) and arrangement positions away from the channel wall( D= 0 m, 0.1 m, 0.2 m). The results indicate that the flow velocity increases under the floating beds, and the water level rises significantly under high flow velocity conditions in the upstream region and the floating bed region. In addition, the average rising water level value(ARWLV) increases significantly with the increase of the floating bed coverage rate, and the arrangement position of floating beds in the river can also greatly influence the water level distribution under a high-flow velocity condition(v ?0.2 m /s).</description><identifier>ISSN: 1001-6058</identifier><identifier>EISSN: 1878-0342</identifier><identifier>DOI: 10.1016/S1001-6058(14)60054-8</identifier><language>eng</language><publisher>Singapore: Elsevier Ltd</publisher><subject>Channels ; Computational fluid dynamics ; ecological floating bed ; Ecology ; Engineering ; Engineering Fluid Dynamics ; flow pattern ; Flow velocity ; Fluid flow ; Freshwater ; Hydrology/Water Resources ; Mathematical models ; Numerical and Computational Physics ; numerical simulation ; rising water level ; Rivers ; Simulation ; Water flow ; 人工生态 ; 多孔介质模型 ; 水位分布 ; 水力特性 ; 河流 ; 流动方式 ; 浮床 ; 高流速</subject><ispartof>Journal of hydrodynamics. Series B, 2014-07, Vol.26 (3), p.474-481</ispartof><rights>2014 Publishing House for Journal of Hydrodynamics</rights><rights>China Ship Scientific Research Center 2014</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c486t-1b8750071b56555d3345a8b34f4df0d9c3fd74cbe2feac2ca62d5b9c3e6a132b3</citedby><cites>FETCH-LOGICAL-c486t-1b8750071b56555d3345a8b34f4df0d9c3fd74cbe2feac2ca62d5b9c3e6a132b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/86648X/86648X.jpg</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>饶磊 钱进 敖燕辉</creatorcontrib><title>Influence of artificial ecological floating beds on river hydraulic characteristics</title><title>Journal of hydrodynamics. Series B</title><addtitle>J Hydrodyn</addtitle><addtitle>Journal of Hydrodynamics</addtitle><description>The artificial ecological floating bed is widely used in rivers and lakes to repair and purify polluted water. However, the water flow pattern and the water level distribution are significantly changed by the floating beds, and the influence on the water flow is different from that of aquatic plants. In this paper, based on the continuous porous media model, a moveable two-layer combination model is built to describe the floating bed. The influences of the floating beds on the water flow characteristics are studied by numerical simulations and experiments using an experimental water channel. The variations of the water level distribution are discussed under conditions of different flow velocities( v= 0.1 m/s, 0.2 m/s, 0.30 m/s, 0.4 m/s), floating bed coverage rates(20%, 40%, 60%) and arrangement positions away from the channel wall( D= 0 m, 0.1 m, 0.2 m). The results indicate that the flow velocity increases under the floating beds, and the water level rises significantly under high flow velocity conditions in the upstream region and the floating bed region. In addition, the average rising water level value(ARWLV) increases significantly with the increase of the floating bed coverage rate, and the arrangement position of floating beds in the river can also greatly influence the water level distribution under a high-flow velocity condition(v ?0.2 m /s).</description><subject>Channels</subject><subject>Computational fluid dynamics</subject><subject>ecological floating bed</subject><subject>Ecology</subject><subject>Engineering</subject><subject>Engineering Fluid Dynamics</subject><subject>flow pattern</subject><subject>Flow velocity</subject><subject>Fluid flow</subject><subject>Freshwater</subject><subject>Hydrology/Water Resources</subject><subject>Mathematical models</subject><subject>Numerical and Computational Physics</subject><subject>numerical simulation</subject><subject>rising water level</subject><subject>Rivers</subject><subject>Simulation</subject><subject>Water flow</subject><subject>人工生态</subject><subject>多孔介质模型</subject><subject>水位分布</subject><subject>水力特性</subject><subject>河流</subject><subject>流动方式</subject><subject>浮床</subject><subject>高流速</subject><issn>1001-6058</issn><issn>1878-0342</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkUtr3TAQhU1poGman1AwXaVQt3pbXpUS-ggEukiyFrI08tVFkRLJTnr766sbp-3ybqRh-M7MYU7TvMXoI0ZYfLrCCOFOIC7PMHsvEOKsky-aYyx72SHKyMta_0VeNa9L2SJExYDYcXN1EV1YIBpok2t1nr3zxuvQgkkhTd7U0oWkZx-ndgRb2hTb7B8gt5udzXoJ3rRmo7M2M2RfZm_Km-bI6VDg9Pk_aW6-fb0-_9Fd_vx-cf7lsjNMirnDo-w5Qj0eueCcW0oZ13KkzDHrkB0MdbZnZgTiQBtitCCWj7UNQmNKRnrSfFjnPurodJzUNi051o2q2PBrt91tfysgCDNE65kqfrbidzndL1BmdeuLgRB0hLQUhQUjtD4SH0Y5x4KIQdKK8hU1OZWSwam77G913imM1D4e9RSP2t9eYaae4lGy6sSqK5WPE-T_7g8JP69CqKd98FVYjN8HaH0GMyub_MEJ754tb1Kc7uv2f56FIFgMA-npHzCjs4k</recordid><startdate>20140701</startdate><enddate>20140701</enddate><creator>饶磊 钱进 敖燕辉</creator><general>Elsevier Ltd</general><general>Springer Singapore</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TV</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>7SU</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20140701</creationdate><title>Influence of artificial ecological floating beds on river hydraulic characteristics</title><author>饶磊 钱进 敖燕辉</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c486t-1b8750071b56555d3345a8b34f4df0d9c3fd74cbe2feac2ca62d5b9c3e6a132b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Channels</topic><topic>Computational fluid dynamics</topic><topic>ecological floating bed</topic><topic>Ecology</topic><topic>Engineering</topic><topic>Engineering Fluid Dynamics</topic><topic>flow pattern</topic><topic>Flow velocity</topic><topic>Fluid flow</topic><topic>Freshwater</topic><topic>Hydrology/Water Resources</topic><topic>Mathematical models</topic><topic>Numerical and Computational Physics</topic><topic>numerical simulation</topic><topic>rising water level</topic><topic>Rivers</topic><topic>Simulation</topic><topic>Water flow</topic><topic>人工生态</topic><topic>多孔介质模型</topic><topic>水位分布</topic><topic>水力特性</topic><topic>河流</topic><topic>流动方式</topic><topic>浮床</topic><topic>高流速</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>饶磊 钱进 敖燕辉</creatorcontrib><collection>维普_期刊</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>维普中文期刊数据库</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Wanfang Data Journals - 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Series B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>饶磊 钱进 敖燕辉</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of artificial ecological floating beds on river hydraulic characteristics</atitle><jtitle>Journal of hydrodynamics. Series B</jtitle><stitle>J Hydrodyn</stitle><addtitle>Journal of Hydrodynamics</addtitle><date>2014-07-01</date><risdate>2014</risdate><volume>26</volume><issue>3</issue><spage>474</spage><epage>481</epage><pages>474-481</pages><issn>1001-6058</issn><eissn>1878-0342</eissn><abstract>The artificial ecological floating bed is widely used in rivers and lakes to repair and purify polluted water. However, the water flow pattern and the water level distribution are significantly changed by the floating beds, and the influence on the water flow is different from that of aquatic plants. In this paper, based on the continuous porous media model, a moveable two-layer combination model is built to describe the floating bed. The influences of the floating beds on the water flow characteristics are studied by numerical simulations and experiments using an experimental water channel. The variations of the water level distribution are discussed under conditions of different flow velocities( v= 0.1 m/s, 0.2 m/s, 0.30 m/s, 0.4 m/s), floating bed coverage rates(20%, 40%, 60%) and arrangement positions away from the channel wall( D= 0 m, 0.1 m, 0.2 m). The results indicate that the flow velocity increases under the floating beds, and the water level rises significantly under high flow velocity conditions in the upstream region and the floating bed region. In addition, the average rising water level value(ARWLV) increases significantly with the increase of the floating bed coverage rate, and the arrangement position of floating beds in the river can also greatly influence the water level distribution under a high-flow velocity condition(v ?0.2 m /s).</abstract><cop>Singapore</cop><pub>Elsevier Ltd</pub><doi>10.1016/S1001-6058(14)60054-8</doi><tpages>8</tpages></addata></record> |
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source | ScienceDirect Journals |
subjects | Channels Computational fluid dynamics ecological floating bed Ecology Engineering Engineering Fluid Dynamics flow pattern Flow velocity Fluid flow Freshwater Hydrology/Water Resources Mathematical models Numerical and Computational Physics numerical simulation rising water level Rivers Simulation Water flow 人工生态 多孔介质模型 水位分布 水力特性 河流 流动方式 浮床 高流速 |
title | Influence of artificial ecological floating beds on river hydraulic characteristics |
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