High-lift siphon flow velocity in a 4-mm siphon hose
High-lift siphon drainage by 4-mm internal diameter siphon hoses is a real-time, free-power, and long-term approach for slope drainage. The conventional hydraulics formula for pressurized pipe flow is generally used to calculate the single-phase velocity of siphon flow. However, an intensive cavitat...
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| Veröffentlicht in: | Journal of Zhejiang University. A. Science 2017-06, Vol.18 (6), p.487-495 |
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| creator | Mei, Cheng Liang, Xu Sun, Hong-yue Wu, Meng-ping |
| description | High-lift siphon drainage by 4-mm internal diameter siphon hoses is a real-time, free-power, and long-term approach for slope drainage. The conventional hydraulics formula for pressurized pipe flow is generally used to calculate the single-phase velocity of siphon flow. However, an intensive cavitation phenomenon occurs in the high-lift siphon hose and then a two-phase flow is formed. Research on the velocity of high-lift siphon flow is a prerequisite for the application of siphon drainage with a 4-mm siphon hose. Few investigations of this subject have been carried out. Hence, experiments on the high-lift （8 m〈H0〈10.3 m） siphon drainage in a 4-mm siphon hose were performed. The characteristics of siphon flow under different conditions were ob- served and test data were obtained. Comparisons between test results and calculated results showed that significant errors were given by the hydraulics formula. It is demonstrated that the effect of gas in a siphon hose should be included in the calculation of flow velocity. The findings can be used to determine the number of siphon hoses and layout of siphon drainage holes, and provide valuable information for geotechnical companies. |
| doi_str_mv | 10.1631/jzus.A1600428 |
| format | Article |
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The conventional hydraulics formula for pressurized pipe flow is generally used to calculate the single-phase velocity of siphon flow. However, an intensive cavitation phenomenon occurs in the high-lift siphon hose and then a two-phase flow is formed. Research on the velocity of high-lift siphon flow is a prerequisite for the application of siphon drainage with a 4-mm siphon hose. Few investigations of this subject have been carried out. Hence, experiments on the high-lift （8 m〈H0〈10.3 m） siphon drainage in a 4-mm siphon hose were performed. The characteristics of siphon flow under different conditions were ob- served and test data were obtained. Comparisons between test results and calculated results showed that significant errors were given by the hydraulics formula. It is demonstrated that the effect of gas in a siphon hose should be included in the calculation of flow velocity. The findings can be used to determine the number of siphon hoses and layout of siphon drainage holes, and provide valuable information for geotechnical companies.</description><identifier>ISSN: 1673-565X</identifier><identifier>EISSN: 1862-1775</identifier><identifier>DOI: 10.1631/jzus.A1600428</identifier><language>eng</language><publisher>Hangzhou: Zhejiang University Press</publisher><subject>Cavitation ; Civil Engineering ; Classical and Continuum Physics ; Computational fluid dynamics ; Data processing ; Drainage ; Engineering ; Flow velocity ; Fluid flow ; Geotechnical engineering ; Hoses ; Hydraulics ; Industrial Chemistry/Chemical Engineering ; Information dissemination ; Lift ; Mathematical analysis ; Mechanical Engineering ; Multiphase flow ; Phase velocity ; Pipe flow ; Pipes ; Real time</subject><ispartof>Journal of Zhejiang University. A. 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A. Science</title><addtitle>J. Zhejiang Univ. Sci. A</addtitle><addtitle>Journal of Zhejiang University Science</addtitle><description>High-lift siphon drainage by 4-mm internal diameter siphon hoses is a real-time, free-power, and long-term approach for slope drainage. The conventional hydraulics formula for pressurized pipe flow is generally used to calculate the single-phase velocity of siphon flow. However, an intensive cavitation phenomenon occurs in the high-lift siphon hose and then a two-phase flow is formed. Research on the velocity of high-lift siphon flow is a prerequisite for the application of siphon drainage with a 4-mm siphon hose. Few investigations of this subject have been carried out. Hence, experiments on the high-lift （8 m〈H0〈10.3 m） siphon drainage in a 4-mm siphon hose were performed. The characteristics of siphon flow under different conditions were ob- served and test data were obtained. Comparisons between test results and calculated results showed that significant errors were given by the hydraulics formula. It is demonstrated that the effect of gas in a siphon hose should be included in the calculation of flow velocity. The findings can be used to determine the number of siphon hoses and layout of siphon drainage holes, and provide valuable information for geotechnical companies.</description><subject>Cavitation</subject><subject>Civil Engineering</subject><subject>Classical and Continuum Physics</subject><subject>Computational fluid dynamics</subject><subject>Data processing</subject><subject>Drainage</subject><subject>Engineering</subject><subject>Flow velocity</subject><subject>Fluid flow</subject><subject>Geotechnical engineering</subject><subject>Hoses</subject><subject>Hydraulics</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Information dissemination</subject><subject>Lift</subject><subject>Mathematical analysis</subject><subject>Mechanical Engineering</subject><subject>Multiphase flow</subject><subject>Phase velocity</subject><subject>Pipe flow</subject><subject>Pipes</subject><subject>Real time</subject><issn>1673-565X</issn><issn>1862-1775</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhoMoWKtH74ueU_M5s3ssRa1Q8KLgLaRptt2y3W2TrVJ_vSltxYunGZjnnRceQm45G3CQ_GH5vY2DIQfGlMjPSI_nIChH1OdpB5RUg_64JFcxLhnTyAB7RI2r-YLWVdllsVov2iYr6_Yr-_R166pul1VNZjNFV6vTedFGf00uSltHf3OcffL-9Pg2GtPJ6_PLaDihTqLuqJCFywtWAJ8yKR0qbjWImdfoQObgLCoN6BUUns1c4RybSa6sszlOrRJC9sn94e86tJutj51ZttvQpErDC4ZSKcwhUfRAudDGGHxp1qFa2bAznJm9GLMXY05iEj848DFxzdyHP1__CdwdC5KA-SZlfhsAhVZKcS5_ABF4b0w</recordid><startdate>20170601</startdate><enddate>20170601</enddate><creator>Mei, Cheng</creator><creator>Liang, Xu</creator><creator>Sun, Hong-yue</creator><creator>Wu, Meng-ping</creator><general>Zhejiang University Press</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20170601</creationdate><title>High-lift siphon flow velocity in a 4-mm siphon hose</title><author>Mei, Cheng ; Liang, Xu ; Sun, Hong-yue ; Wu, Meng-ping</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-239c890961b033c741a562de57c6386ca74567e469e0dc9cc0d314aca87ba4223</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Cavitation</topic><topic>Civil Engineering</topic><topic>Classical and Continuum Physics</topic><topic>Computational fluid dynamics</topic><topic>Data processing</topic><topic>Drainage</topic><topic>Engineering</topic><topic>Flow velocity</topic><topic>Fluid flow</topic><topic>Geotechnical engineering</topic><topic>Hoses</topic><topic>Hydraulics</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Information dissemination</topic><topic>Lift</topic><topic>Mathematical analysis</topic><topic>Mechanical Engineering</topic><topic>Multiphase flow</topic><topic>Phase velocity</topic><topic>Pipe flow</topic><topic>Pipes</topic><topic>Real time</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mei, Cheng</creatorcontrib><creatorcontrib>Liang, Xu</creatorcontrib><creatorcontrib>Sun, Hong-yue</creatorcontrib><creatorcontrib>Wu, Meng-ping</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><jtitle>Journal of Zhejiang University. A. Science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mei, Cheng</au><au>Liang, Xu</au><au>Sun, Hong-yue</au><au>Wu, Meng-ping</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-lift siphon flow velocity in a 4-mm siphon hose</atitle><jtitle>Journal of Zhejiang University. A. Science</jtitle><stitle>J. Zhejiang Univ. Sci. A</stitle><addtitle>Journal of Zhejiang University Science</addtitle><date>2017-06-01</date><risdate>2017</risdate><volume>18</volume><issue>6</issue><spage>487</spage><epage>495</epage><pages>487-495</pages><issn>1673-565X</issn><eissn>1862-1775</eissn><abstract>High-lift siphon drainage by 4-mm internal diameter siphon hoses is a real-time, free-power, and long-term approach for slope drainage. The conventional hydraulics formula for pressurized pipe flow is generally used to calculate the single-phase velocity of siphon flow. However, an intensive cavitation phenomenon occurs in the high-lift siphon hose and then a two-phase flow is formed. Research on the velocity of high-lift siphon flow is a prerequisite for the application of siphon drainage with a 4-mm siphon hose. Few investigations of this subject have been carried out. Hence, experiments on the high-lift （8 m〈H0〈10.3 m） siphon drainage in a 4-mm siphon hose were performed. The characteristics of siphon flow under different conditions were ob- served and test data were obtained. Comparisons between test results and calculated results showed that significant errors were given by the hydraulics formula. It is demonstrated that the effect of gas in a siphon hose should be included in the calculation of flow velocity. The findings can be used to determine the number of siphon hoses and layout of siphon drainage holes, and provide valuable information for geotechnical companies.</abstract><cop>Hangzhou</cop><pub>Zhejiang University Press</pub><doi>10.1631/jzus.A1600428</doi><tpages>9</tpages></addata></record> |
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| subjects | Cavitation Civil Engineering Classical and Continuum Physics Computational fluid dynamics Data processing Drainage Engineering Flow velocity Fluid flow Geotechnical engineering Hoses Hydraulics Industrial Chemistry/Chemical Engineering Information dissemination Lift Mathematical analysis Mechanical Engineering Multiphase flow Phase velocity Pipe flow Pipes Real time |
| title | High-lift siphon flow velocity in a 4-mm siphon hose |
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