Numerical Study on Two-Dimensional Symmetric Sudden Expansion Channel Flow : Dynamic Characteristics

Numerical Study on Two-Dimensional Symmetric Sudden Expansion Channel Flow : Dynamic Characteristics

The objective of this study is to examine mumerically the relation between the flow structure and the dynamic characteristics for a laminar separated flow through a two-dimensional symmetric sudden-expansion channel of expansion ratio α. A stream function-vorticity formulation was used and solved by...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 1995/09/25, Vol.61(589), pp.3182-3189
Hauptverfasser: Nakanishi, Suketsugu, Sakurai, Motoyasu, Osaka, Hideo
Format: Artikel
Sprache:eng ; jpn
Schlagworte:
Navier-Stokes Equation
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 3189
container_issue 589
container_start_page 3182
container_title Nihon Kikai Gakkai rombunshuu. B hen
container_volume 61
creator Nakanishi, Suketsugu
Sakurai, Motoyasu
Osaka, Hideo
description The objective of this study is to examine mumerically the relation between the flow structure and the dynamic characteristics for a laminar separated flow through a two-dimensional symmetric sudden-expansion channel of expansion ratio α. A stream function-vorticity formulation was used and solved by the finite difference method using a pseudo-unsteady technique. For the cases of four different expansion ratios α=2, 3, 3.5 and 4, calculations were performed for the range of the Reynolds number 20≤Re≤400. The results showed that the critical Reynolds number ReC (at which the asymmetric flow began) decreased with increasing α. Stream lines, velocity profile, distributions of pressure and pressure gradient were presented and discussed to clarify the relation between flow pattern and pressure gradient.
doi_str_mv 10.1299/kikaib.61.3182
format Article
fullrecord <record><control><sourceid>jstage_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1299_kikaib_61_3182</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>article_kikaib1979_61_589_61_589_3182_article_char_en</sourcerecordid><originalsourceid>FETCH-LOGICAL-c2492-50c0857da9fbbb755b09d3b91dbc51f6e7e3e69f3208be434516fbd3d04090583</originalsourceid><addsrcrecordid>eNo9kEtPwzAQhC0EElXplbP_QIIdx47NDfUBiAoOLefIr4Bp4lRxqpJ_j0Ornlba-WY1OwDcY5TiTIiHndtJp1KGU4J5dgUmmPM84SRn12CCCC8SijC7BbMQnEIICcIEKSbAvB8a2zkta7jpD2aArYfbY5ssXGN9cK0fhaFpbB8huDkYYz1c_u7lvwjn39J7W8NV3R7hI1wMXjaRi-tO6j4eDr3T4Q7cVLIOdnaeU_C5Wm7nL8n64_l1_rROdJaLLCbUiNPCSFEppQpKFRKGKIGN0hRXzBaWWCYqkiGubE5yilmlDDEoRwJRTqYgPd3VXRtCZ6ty37lGdkOJUTnWVJ5qKhkux5qi4e1k-Am9_LIXXHYxdm3POBaFGC2UX8bovlA6fltaT_4AVc93hg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Numerical Study on Two-Dimensional Symmetric Sudden Expansion Channel Flow : Dynamic Characteristics</title><source>J-STAGE Free</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><creator>Nakanishi, Suketsugu ; Sakurai, Motoyasu ; Osaka, Hideo</creator><creatorcontrib>Nakanishi, Suketsugu ; Sakurai, Motoyasu ; Osaka, Hideo</creatorcontrib><description>The objective of this study is to examine mumerically the relation between the flow structure and the dynamic characteristics for a laminar separated flow through a two-dimensional symmetric sudden-expansion channel of expansion ratio α. A stream function-vorticity formulation was used and solved by the finite difference method using a pseudo-unsteady technique. For the cases of four different expansion ratios α=2, 3, 3.5 and 4, calculations were performed for the range of the Reynolds number 20≤Re≤400. The results showed that the critical Reynolds number ReC (at which the asymmetric flow began) decreased with increasing α. Stream lines, velocity profile, distributions of pressure and pressure gradient were presented and discussed to clarify the relation between flow pattern and pressure gradient.</description><identifier>ISSN: 0387-5016</identifier><identifier>EISSN: 1884-8346</identifier><identifier>DOI: 10.1299/kikaib.61.3182</identifier><language>eng ; jpn</language><publisher>The Japan Society of Mechanical Engineers</publisher><subject>Navier-Stokes Equation</subject><ispartof>Transactions of the Japan Society of Mechanical Engineers Series B, 1995/09/25, Vol.61(589), pp.3182-3189</ispartof><rights>The Japan Society of Mechanical Engineers</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2492-50c0857da9fbbb755b09d3b91dbc51f6e7e3e69f3208be434516fbd3d04090583</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Nakanishi, Suketsugu</creatorcontrib><creatorcontrib>Sakurai, Motoyasu</creatorcontrib><creatorcontrib>Osaka, Hideo</creatorcontrib><title>Numerical Study on Two-Dimensional Symmetric Sudden Expansion Channel Flow : Dynamic Characteristics</title><title>Nihon Kikai Gakkai rombunshuu. B hen</title><addtitle>JSMET</addtitle><description>The objective of this study is to examine mumerically the relation between the flow structure and the dynamic characteristics for a laminar separated flow through a two-dimensional symmetric sudden-expansion channel of expansion ratio α. A stream function-vorticity formulation was used and solved by the finite difference method using a pseudo-unsteady technique. For the cases of four different expansion ratios α=2, 3, 3.5 and 4, calculations were performed for the range of the Reynolds number 20≤Re≤400. The results showed that the critical Reynolds number ReC (at which the asymmetric flow began) decreased with increasing α. Stream lines, velocity profile, distributions of pressure and pressure gradient were presented and discussed to clarify the relation between flow pattern and pressure gradient.</description><subject>Navier-Stokes Equation</subject><issn>0387-5016</issn><issn>1884-8346</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNo9kEtPwzAQhC0EElXplbP_QIIdx47NDfUBiAoOLefIr4Bp4lRxqpJ_j0Ornlba-WY1OwDcY5TiTIiHndtJp1KGU4J5dgUmmPM84SRn12CCCC8SijC7BbMQnEIICcIEKSbAvB8a2zkta7jpD2aArYfbY5ssXGN9cK0fhaFpbB8huDkYYz1c_u7lvwjn39J7W8NV3R7hI1wMXjaRi-tO6j4eDr3T4Q7cVLIOdnaeU_C5Wm7nL8n64_l1_rROdJaLLCbUiNPCSFEppQpKFRKGKIGN0hRXzBaWWCYqkiGubE5yilmlDDEoRwJRTqYgPd3VXRtCZ6ty37lGdkOJUTnWVJ5qKhkux5qi4e1k-Am9_LIXXHYxdm3POBaFGC2UX8bovlA6fltaT_4AVc93hg</recordid><startdate>1995</startdate><enddate>1995</enddate><creator>Nakanishi, Suketsugu</creator><creator>Sakurai, Motoyasu</creator><creator>Osaka, Hideo</creator><general>The Japan Society of Mechanical Engineers</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>1995</creationdate><title>Numerical Study on Two-Dimensional Symmetric Sudden Expansion Channel Flow : Dynamic Characteristics</title><author>Nakanishi, Suketsugu ; Sakurai, Motoyasu ; Osaka, Hideo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2492-50c0857da9fbbb755b09d3b91dbc51f6e7e3e69f3208be434516fbd3d04090583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>1995</creationdate><topic>Navier-Stokes Equation</topic><toplevel>online_resources</toplevel><creatorcontrib>Nakanishi, Suketsugu</creatorcontrib><creatorcontrib>Sakurai, Motoyasu</creatorcontrib><creatorcontrib>Osaka, Hideo</creatorcontrib><collection>CrossRef</collection><jtitle>Nihon Kikai Gakkai rombunshuu. B hen</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nakanishi, Suketsugu</au><au>Sakurai, Motoyasu</au><au>Osaka, Hideo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical Study on Two-Dimensional Symmetric Sudden Expansion Channel Flow : Dynamic Characteristics</atitle><jtitle>Nihon Kikai Gakkai rombunshuu. B hen</jtitle><addtitle>JSMET</addtitle><date>1995</date><risdate>1995</risdate><volume>61</volume><issue>589</issue><spage>3182</spage><epage>3189</epage><pages>3182-3189</pages><issn>0387-5016</issn><eissn>1884-8346</eissn><abstract>The objective of this study is to examine mumerically the relation between the flow structure and the dynamic characteristics for a laminar separated flow through a two-dimensional symmetric sudden-expansion channel of expansion ratio α. A stream function-vorticity formulation was used and solved by the finite difference method using a pseudo-unsteady technique. For the cases of four different expansion ratios α=2, 3, 3.5 and 4, calculations were performed for the range of the Reynolds number 20≤Re≤400. The results showed that the critical Reynolds number ReC (at which the asymmetric flow began) decreased with increasing α. Stream lines, velocity profile, distributions of pressure and pressure gradient were presented and discussed to clarify the relation between flow pattern and pressure gradient.</abstract><pub>The Japan Society of Mechanical Engineers</pub><doi>10.1299/kikaib.61.3182</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0387-5016
ispartof Transactions of the Japan Society of Mechanical Engineers Series B, 1995/09/25, Vol.61(589), pp.3182-3189
issn 0387-5016
1884-8346
language eng ; jpn
recordid cdi_crossref_primary_10_1299_kikaib_61_3182
source J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Navier-Stokes Equation
title Numerical Study on Two-Dimensional Symmetric Sudden Expansion Channel Flow : Dynamic Characteristics
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-06T10%3A33%3A01IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstage_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Numerical%20Study%20on%20Two-Dimensional%20Symmetric%20Sudden%20Expansion%20Channel%20Flow%20:%20Dynamic%20Characteristics&rft.jtitle=Nihon%20Kikai%20Gakkai%20rombunshuu.%20B%20hen&rft.au=Nakanishi,%20Suketsugu&rft.date=1995&rft.volume=61&rft.issue=589&rft.spage=3182&rft.epage=3189&rft.pages=3182-3189&rft.issn=0387-5016&rft.eissn=1884-8346&rft_id=info:doi/10.1299/kikaib.61.3182&rft_dat=%3Cjstage_cross%3Earticle_kikaib1979_61_589_61_589_3182_article_char_en%3C/jstage_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true