Experimental study of velocity distributions in the transition region of pipes
The accuracy of an ultrasonic flowmeter meaurement depends on the profile-linear average velocity. But this velocity in the transition region is not available at the present. In this article, the velocity in the transition region in pipes is studied by experimental methods. The Particle Image Veloci...
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| Veröffentlicht in: | Journal of hydrodynamics. Series B 2011-10, Vol.23 (5), p.643-648 |
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| creator | LIU, Yong-hui DU, Guang-sheng LIU, Li-ping SHAO, Zhu-feng ZHAI, Cheng-yuan |
| description | The accuracy of an ultrasonic flowmeter meaurement depends on the profile-linear average velocity. But this velocity in the transition region is not available at the present. In this article, the velocity in the transition region in pipes is studied by experimental methods. The Particle Image Velocimetry (PIV) is used to measure the flow field in the transition region in pipes, and the measured results from PIV are in good agreement with the Westerwell's experimental data. Based on the experimental data of PIV, the curves of the profile-linear average velocity in the transition region against the Reynolds number in the range from 2 000 to 20 000 are obtained, and it is shown that the coefficient
k is constant when the Reynolds number is in the range of 2 000–2 400 and 6 000–20 000, and the coefficient
k is increasing when the Reynolds number is in the range of 2 400–6 000. The results of this article can be used to improve the measurement accuracy of the ultrasonic flowmeters and as a theoretical basis for the research on the transition flow. |
| doi_str_mv | 10.1016/S1001-6058(10)60160-6 |
| format | Article |
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k is constant when the Reynolds number is in the range of 2 000–2 400 and 6 000–20 000, and the coefficient
k is increasing when the Reynolds number is in the range of 2 400–6 000. The results of this article can be used to improve the measurement accuracy of the ultrasonic flowmeters and as a theoretical basis for the research on the transition flow.</description><identifier>ISSN: 1001-6058</identifier><identifier>EISSN: 1878-0342</identifier><identifier>DOI: 10.1016/S1001-6058(10)60160-6</identifier><language>eng</language><publisher>Singapore: Elsevier Ltd</publisher><subject>Coefficients ; Engineering ; Engineering Fluid Dynamics ; Flowmeters ; Fluid dynamics ; Fluid flow ; Hydrology/Water Resources ; Numerical and Computational Physics ; Particle image velocimetry ; Particle Image Velocimetry (PIV) ; Pipe ; Reynolds number ; Simulation ; the profile-linear average velocity ; Transition flow ; transition region ; ultrasonic flowmeter</subject><ispartof>Journal of hydrodynamics. Series B, 2011-10, Vol.23 (5), p.643-648</ispartof><rights>2011 Publishing House for Journal of Hydrodynamics</rights><rights>China Ship Scientific Research Center 2011</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c458t-c39c13d6267d7581e650aeb0de38c641a76d0f6976cf4f210c75d5a892f6ce803</citedby><cites>FETCH-LOGICAL-c458t-c39c13d6267d7581e650aeb0de38c641a76d0f6976cf4f210c75d5a892f6ce803</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.wanfangdata.com.cn/images/PeriodicalImages/sdlxyjyjz-e/sdlxyjyjz-e.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1016/S1001-6058(10)60160-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://dx.doi.org/10.1016/S1001-6058(10)60160-6$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,41487,42556,45994,51318</link.rule.ids></links><search><creatorcontrib>LIU, Yong-hui</creatorcontrib><creatorcontrib>DU, Guang-sheng</creatorcontrib><creatorcontrib>LIU, Li-ping</creatorcontrib><creatorcontrib>SHAO, Zhu-feng</creatorcontrib><creatorcontrib>ZHAI, Cheng-yuan</creatorcontrib><title>Experimental study of velocity distributions in the transition region of pipes</title><title>Journal of hydrodynamics. Series B</title><addtitle>J Hydrodyn</addtitle><description>The accuracy of an ultrasonic flowmeter meaurement depends on the profile-linear average velocity. But this velocity in the transition region is not available at the present. In this article, the velocity in the transition region in pipes is studied by experimental methods. The Particle Image Velocimetry (PIV) is used to measure the flow field in the transition region in pipes, and the measured results from PIV are in good agreement with the Westerwell's experimental data. Based on the experimental data of PIV, the curves of the profile-linear average velocity in the transition region against the Reynolds number in the range from 2 000 to 20 000 are obtained, and it is shown that the coefficient
k is constant when the Reynolds number is in the range of 2 000–2 400 and 6 000–20 000, and the coefficient
k is increasing when the Reynolds number is in the range of 2 400–6 000. The results of this article can be used to improve the measurement accuracy of the ultrasonic flowmeters and as a theoretical basis for the research on the transition flow.</description><subject>Coefficients</subject><subject>Engineering</subject><subject>Engineering Fluid Dynamics</subject><subject>Flowmeters</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Hydrology/Water Resources</subject><subject>Numerical and Computational Physics</subject><subject>Particle image velocimetry</subject><subject>Particle Image Velocimetry (PIV)</subject><subject>Pipe</subject><subject>Reynolds number</subject><subject>Simulation</subject><subject>the profile-linear average velocity</subject><subject>Transition flow</subject><subject>transition region</subject><subject>ultrasonic flowmeter</subject><issn>1001-6058</issn><issn>1878-0342</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkc1O3TAQhaOqSKWUR6iUXalE2pn82M4KIQQFCZUFsLaMPbn1VXCC7QDp09chRd2V1VhH3xmPzsmyzwjfEJB9v0YALBg04gDhK0sSFOxdtouCiwKqunyf3q_Ih-xjCFuAirVQ72Y_T59H8vaeXFR9HuJk5nzo8kfqB23jnBsbord3U7SDC7l1efxFefTKBbtIuafNMpJltCOFT9lOp_pA-3_nXnZ7dnpzcl5cXv24ODm-LHTdiFjoqtVYGVYybngjkFgDiu7AUCU0q1FxZqBjLWe6q7sSQfPGNEq0Zcc0Caj2ssN175NynXIbuR0m79KPMpj-ed7O29-SSkCEBrBO-JcVH_3wMFGI8t4GTX2vHA1TkC1wbGtgC3nwXxI551iJCnhCmxXVfgjBUyfHFKTys0SQSzHypRi5pL5IL8VIlnxs9YXEuw35f8e_ZTxajZSSfbTJGLQlp8lYTzpKM9g3NvwBVJmlpg</recordid><startdate>20111001</startdate><enddate>20111001</enddate><creator>LIU, Yong-hui</creator><creator>DU, Guang-sheng</creator><creator>LIU, Li-ping</creator><creator>SHAO, Zhu-feng</creator><creator>ZHAI, Cheng-yuan</creator><general>Elsevier Ltd</general><general>Springer Singapore</general><general>School of Energy and Power Engineering, Shandong University, Jinan 250061, China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SU</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><scope>7QH</scope><scope>7UA</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20111001</creationdate><title>Experimental study of velocity distributions in the transition region of pipes</title><author>LIU, Yong-hui ; DU, Guang-sheng ; LIU, Li-ping ; SHAO, Zhu-feng ; ZHAI, Cheng-yuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c458t-c39c13d6267d7581e650aeb0de38c641a76d0f6976cf4f210c75d5a892f6ce803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Coefficients</topic><topic>Engineering</topic><topic>Engineering Fluid Dynamics</topic><topic>Flowmeters</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Hydrology/Water Resources</topic><topic>Numerical and Computational Physics</topic><topic>Particle image velocimetry</topic><topic>Particle Image Velocimetry (PIV)</topic><topic>Pipe</topic><topic>Reynolds number</topic><topic>Simulation</topic><topic>the profile-linear average velocity</topic><topic>Transition flow</topic><topic>transition region</topic><topic>ultrasonic flowmeter</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LIU, Yong-hui</creatorcontrib><creatorcontrib>DU, Guang-sheng</creatorcontrib><creatorcontrib>LIU, Li-ping</creatorcontrib><creatorcontrib>SHAO, Zhu-feng</creatorcontrib><creatorcontrib>ZHAI, Cheng-yuan</creatorcontrib><collection>CrossRef</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>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</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>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of hydrodynamics. Series B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LIU, Yong-hui</au><au>DU, Guang-sheng</au><au>LIU, Li-ping</au><au>SHAO, Zhu-feng</au><au>ZHAI, Cheng-yuan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental study of velocity distributions in the transition region of pipes</atitle><jtitle>Journal of hydrodynamics. Series B</jtitle><stitle>J Hydrodyn</stitle><date>2011-10-01</date><risdate>2011</risdate><volume>23</volume><issue>5</issue><spage>643</spage><epage>648</epage><pages>643-648</pages><issn>1001-6058</issn><eissn>1878-0342</eissn><abstract>The accuracy of an ultrasonic flowmeter meaurement depends on the profile-linear average velocity. But this velocity in the transition region is not available at the present. In this article, the velocity in the transition region in pipes is studied by experimental methods. The Particle Image Velocimetry (PIV) is used to measure the flow field in the transition region in pipes, and the measured results from PIV are in good agreement with the Westerwell's experimental data. Based on the experimental data of PIV, the curves of the profile-linear average velocity in the transition region against the Reynolds number in the range from 2 000 to 20 000 are obtained, and it is shown that the coefficient
k is constant when the Reynolds number is in the range of 2 000–2 400 and 6 000–20 000, and the coefficient
k is increasing when the Reynolds number is in the range of 2 400–6 000. The results of this article can be used to improve the measurement accuracy of the ultrasonic flowmeters and as a theoretical basis for the research on the transition flow.</abstract><cop>Singapore</cop><pub>Elsevier Ltd</pub><doi>10.1016/S1001-6058(10)60160-6</doi><tpages>6</tpages></addata></record> |
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| subjects | Coefficients Engineering Engineering Fluid Dynamics Flowmeters Fluid dynamics Fluid flow Hydrology/Water Resources Numerical and Computational Physics Particle image velocimetry Particle Image Velocimetry (PIV) Pipe Reynolds number Simulation the profile-linear average velocity Transition flow transition region ultrasonic flowmeter |
| title | Experimental study of velocity distributions in the transition region of pipes |
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