Two-phase flow characteristics across sudden contraction in small rectangular channels
This study examines the two-phase flow pattern change and pressure drop at the sudden contraction from small rectangular channels (3 × 9 mm and 3 × 6 mm) into a 3 mm diameter tube. A unique deflection of contraction pressure drop vs. vapor quality is observed at a very low quality regime with an unu...
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| Veröffentlicht in: | Experimental thermal and fluid science 2008-09, Vol.32 (8), p.1609-1619 |
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| container_title | Experimental thermal and fluid science |
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| creator | Chen, Ing Youn Chu, Mon-Chern Liaw, Jane-Sunn Wang, Chi-Chuan |
| description | This study examines the two-phase flow pattern change and pressure drop at the sudden contraction from small rectangular channels (3
×
9
mm and 3
×
6
mm) into a 3
mm diameter tube. A unique deflection of contraction pressure drop vs. vapor quality is observed at a very low quality regime with an unusual “liquid like vena contracta”. The measured pressure drops are compared with existing correlations/models, but none of them can accurately predict the available database. By proposing a correction factor accounting for the influence of surface tension (Bond number and contraction ratio) to the original homogeneous model, considerable improvement of the predictive ability of homogeneous model is arrived. The mean deviation of this correlation is 26.18% applicable to the present data (80 points) and available literatures (357 points). |
| doi_str_mv | 10.1016/j.expthermflusci.2008.05.009 |
| format | Article |
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×
9
mm and 3
×
6
mm) into a 3
mm diameter tube. A unique deflection of contraction pressure drop vs. vapor quality is observed at a very low quality regime with an unusual “liquid like vena contracta”. The measured pressure drops are compared with existing correlations/models, but none of them can accurately predict the available database. By proposing a correction factor accounting for the influence of surface tension (Bond number and contraction ratio) to the original homogeneous model, considerable improvement of the predictive ability of homogeneous model is arrived. The mean deviation of this correlation is 26.18% applicable to the present data (80 points) and available literatures (357 points).</description><identifier>ISSN: 0894-1777</identifier><identifier>EISSN: 1879-2286</identifier><identifier>DOI: 10.1016/j.expthermflusci.2008.05.009</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>CONTRACTION ; CORRECTIONS ; CORRELATIONS ; DUCTS ; ENGINEERING ; Exact sciences and technology ; FLOW MODELS ; Flow pattern ; Flows in ducts, channels, nozzles, and conduits ; Fluid dynamics ; Fundamental areas of phenomenology (including applications) ; LIQUID FLOW ; Multiphase and particle-laden flows ; Nonhomogeneous flows ; Physics ; PRESSURE DROP ; Sudden contraction ; SURFACE TENSION ; TUBES ; TWO-PHASE FLOW ; VAPORS ; Vena contracta</subject><ispartof>Experimental thermal and fluid science, 2008-09, Vol.32 (8), p.1609-1619</ispartof><rights>2008 Elsevier Inc.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c485t-aaad4f6c3ee0a264577f1bdbd5f8ea3b687670372f4d963e04c4a8f5989862e03</citedby><cites>FETCH-LOGICAL-c485t-aaad4f6c3ee0a264577f1bdbd5f8ea3b687670372f4d963e04c4a8f5989862e03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0894177708000666$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20675841$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/21116051$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Ing Youn</creatorcontrib><creatorcontrib>Chu, Mon-Chern</creatorcontrib><creatorcontrib>Liaw, Jane-Sunn</creatorcontrib><creatorcontrib>Wang, Chi-Chuan</creatorcontrib><title>Two-phase flow characteristics across sudden contraction in small rectangular channels</title><title>Experimental thermal and fluid science</title><description>This study examines the two-phase flow pattern change and pressure drop at the sudden contraction from small rectangular channels (3
×
9
mm and 3
×
6
mm) into a 3
mm diameter tube. A unique deflection of contraction pressure drop vs. vapor quality is observed at a very low quality regime with an unusual “liquid like vena contracta”. The measured pressure drops are compared with existing correlations/models, but none of them can accurately predict the available database. By proposing a correction factor accounting for the influence of surface tension (Bond number and contraction ratio) to the original homogeneous model, considerable improvement of the predictive ability of homogeneous model is arrived. The mean deviation of this correlation is 26.18% applicable to the present data (80 points) and available literatures (357 points).</description><subject>CONTRACTION</subject><subject>CORRECTIONS</subject><subject>CORRELATIONS</subject><subject>DUCTS</subject><subject>ENGINEERING</subject><subject>Exact sciences and technology</subject><subject>FLOW MODELS</subject><subject>Flow pattern</subject><subject>Flows in ducts, channels, nozzles, and conduits</subject><subject>Fluid dynamics</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>LIQUID FLOW</subject><subject>Multiphase and particle-laden flows</subject><subject>Nonhomogeneous flows</subject><subject>Physics</subject><subject>PRESSURE DROP</subject><subject>Sudden contraction</subject><subject>SURFACE TENSION</subject><subject>TUBES</subject><subject>TWO-PHASE FLOW</subject><subject>VAPORS</subject><subject>Vena contracta</subject><issn>0894-1777</issn><issn>1879-2286</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqNkE1v1DAQhi0EEkvhP0Ti45ZgO_6KxAVVLa1UqZfC1Zp1xqxXXmexE9r--zpshcSN0xzmmZl3HkI-MNoxytTnfYcPx3mH-eDjUlzoOKWmo7KjdHhBNszooeXcqJdkQ80gWqa1fk3elLKnFeSMbsiPu_upPe6gYOPjdN-4HWRwM-ZQ5uBKAy5PpTRlGUdMjZvSvLbDlJqQmnKAGJuMbob0c4mQ1_GUMJa35JWHWPDdcz0j3y8v7s6v2pvbb9fnX29aJ4ycWwAYhVeuR6TAlZBae7Ydt6P0BqHfKqOVpr3mXoyD6pEKJ8B4OZjBKI60PyPvT3unGtdWBTO6XU2ZaibLGWOKSlapTyfqmKdfC5bZHkJxGCMknJZie8mlEIpX8MsJ_PN1Rm-PORwgP1pG7arc7u2_yu2q3FJpq_I6_vH5DhQH0WdILpS_OzhVWhqx5rk8cdUU_g6Y1-SYHI5hlWnHKfzfwSf-XaHC</recordid><startdate>20080901</startdate><enddate>20080901</enddate><creator>Chen, Ing Youn</creator><creator>Chu, Mon-Chern</creator><creator>Liaw, Jane-Sunn</creator><creator>Wang, Chi-Chuan</creator><general>Elsevier Inc</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20080901</creationdate><title>Two-phase flow characteristics across sudden contraction in small rectangular channels</title><author>Chen, Ing Youn ; Chu, Mon-Chern ; Liaw, Jane-Sunn ; Wang, Chi-Chuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c485t-aaad4f6c3ee0a264577f1bdbd5f8ea3b687670372f4d963e04c4a8f5989862e03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>CONTRACTION</topic><topic>CORRECTIONS</topic><topic>CORRELATIONS</topic><topic>DUCTS</topic><topic>ENGINEERING</topic><topic>Exact sciences and technology</topic><topic>FLOW MODELS</topic><topic>Flow pattern</topic><topic>Flows in ducts, channels, nozzles, and conduits</topic><topic>Fluid dynamics</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>LIQUID FLOW</topic><topic>Multiphase and particle-laden flows</topic><topic>Nonhomogeneous flows</topic><topic>Physics</topic><topic>PRESSURE DROP</topic><topic>Sudden contraction</topic><topic>SURFACE TENSION</topic><topic>TUBES</topic><topic>TWO-PHASE FLOW</topic><topic>VAPORS</topic><topic>Vena contracta</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Ing Youn</creatorcontrib><creatorcontrib>Chu, Mon-Chern</creatorcontrib><creatorcontrib>Liaw, Jane-Sunn</creatorcontrib><creatorcontrib>Wang, Chi-Chuan</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</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>OSTI.GOV</collection><jtitle>Experimental thermal and fluid science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Ing Youn</au><au>Chu, Mon-Chern</au><au>Liaw, Jane-Sunn</au><au>Wang, Chi-Chuan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Two-phase flow characteristics across sudden contraction in small rectangular channels</atitle><jtitle>Experimental thermal and fluid science</jtitle><date>2008-09-01</date><risdate>2008</risdate><volume>32</volume><issue>8</issue><spage>1609</spage><epage>1619</epage><pages>1609-1619</pages><issn>0894-1777</issn><eissn>1879-2286</eissn><abstract>This study examines the two-phase flow pattern change and pressure drop at the sudden contraction from small rectangular channels (3
×
9
mm and 3
×
6
mm) into a 3
mm diameter tube. A unique deflection of contraction pressure drop vs. vapor quality is observed at a very low quality regime with an unusual “liquid like vena contracta”. The measured pressure drops are compared with existing correlations/models, but none of them can accurately predict the available database. By proposing a correction factor accounting for the influence of surface tension (Bond number and contraction ratio) to the original homogeneous model, considerable improvement of the predictive ability of homogeneous model is arrived. The mean deviation of this correlation is 26.18% applicable to the present data (80 points) and available literatures (357 points).</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><doi>10.1016/j.expthermflusci.2008.05.009</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0894-1777 |
| ispartof | Experimental thermal and fluid science, 2008-09, Vol.32 (8), p.1609-1619 |
| issn | 0894-1777 1879-2286 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21116051 |
| source | Elsevier ScienceDirect Journals |
| subjects | CONTRACTION CORRECTIONS CORRELATIONS DUCTS ENGINEERING Exact sciences and technology FLOW MODELS Flow pattern Flows in ducts, channels, nozzles, and conduits Fluid dynamics Fundamental areas of phenomenology (including applications) LIQUID FLOW Multiphase and particle-laden flows Nonhomogeneous flows Physics PRESSURE DROP Sudden contraction SURFACE TENSION TUBES TWO-PHASE FLOW VAPORS Vena contracta |
| title | Two-phase flow characteristics across sudden contraction in small rectangular channels |
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