Experimental study of transient convective flows from a suddenly heated groove
•Transient convective flows from a groove with a bottom heated are investigated experimentally.•The evolution and property of transient convective flows are characterized.•The transition from periodic to chaotic flows is identified and discussed. Transient convective flows from a groove with a botto...
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| Veröffentlicht in: | International journal of heat and mass transfer 2021-11, Vol.179, p.121701, Article 121701 |
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| container_title | International journal of heat and mass transfer |
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| creator | Qiao, Manman Gao, Zhu Xu, Feng |
| description | •Transient convective flows from a groove with a bottom heated are investigated experimentally.•The evolution and property of transient convective flows are characterized.•The transition from periodic to chaotic flows is identified and discussed.
Transient convective flows from a groove with a bottom suddenly heated are investigated using shadowgraph visualization and thermistor measurement. The evolution and property of transient convective flows are characterized. The scaling laws of the thickness of the thermal fluid layer and the velocity of the plume are validated by shadowgraph data. Shadowgraph visualization demonstrates that the plume may move along the groove, which was highlighted in the previous numerical study. In addition, temperature time series measured by thermistors are used to describe the oscillations of unsteady convective flows. The frequency of the oscillations in the fully developed stage is obtained using the spectral analysis. Further, the transition from periodic to chaotic flows is identified and discussed. |
| doi_str_mv | 10.1016/j.ijheatmasstransfer.2021.121701 |
| format | Article |
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Transient convective flows from a groove with a bottom suddenly heated are investigated using shadowgraph visualization and thermistor measurement. The evolution and property of transient convective flows are characterized. The scaling laws of the thickness of the thermal fluid layer and the velocity of the plume are validated by shadowgraph data. Shadowgraph visualization demonstrates that the plume may move along the groove, which was highlighted in the previous numerical study. In addition, temperature time series measured by thermistors are used to describe the oscillations of unsteady convective flows. The frequency of the oscillations in the fully developed stage is obtained using the spectral analysis. Further, the transition from periodic to chaotic flows is identified and discussed.</description><identifier>ISSN: 0017-9310</identifier><identifier>EISSN: 1879-2189</identifier><identifier>DOI: 10.1016/j.ijheatmasstransfer.2021.121701</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Convective flow ; Groove ; Grooves ; Oscillations ; Scaling laws ; Shadowgraph ; Spectrum analysis ; Thermistor ; Thermistors ; Transient convective flow ; Transition ; Visualization</subject><ispartof>International journal of heat and mass transfer, 2021-11, Vol.179, p.121701, Article 121701</ispartof><rights>2021</rights><rights>Copyright Elsevier BV Nov 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c300t-4fddc5820fc1a201fa2d0a495f993173cdd539526aca5750deeb93d741fdb6073</citedby><cites>FETCH-LOGICAL-c300t-4fddc5820fc1a201fa2d0a495f993173cdd539526aca5750deeb93d741fdb6073</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijheatmasstransfer.2021.121701$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids></links><search><creatorcontrib>Qiao, Manman</creatorcontrib><creatorcontrib>Gao, Zhu</creatorcontrib><creatorcontrib>Xu, Feng</creatorcontrib><title>Experimental study of transient convective flows from a suddenly heated groove</title><title>International journal of heat and mass transfer</title><description>•Transient convective flows from a groove with a bottom heated are investigated experimentally.•The evolution and property of transient convective flows are characterized.•The transition from periodic to chaotic flows is identified and discussed.
Transient convective flows from a groove with a bottom suddenly heated are investigated using shadowgraph visualization and thermistor measurement. The evolution and property of transient convective flows are characterized. The scaling laws of the thickness of the thermal fluid layer and the velocity of the plume are validated by shadowgraph data. Shadowgraph visualization demonstrates that the plume may move along the groove, which was highlighted in the previous numerical study. In addition, temperature time series measured by thermistors are used to describe the oscillations of unsteady convective flows. The frequency of the oscillations in the fully developed stage is obtained using the spectral analysis. Further, the transition from periodic to chaotic flows is identified and discussed.</description><subject>Convective flow</subject><subject>Groove</subject><subject>Grooves</subject><subject>Oscillations</subject><subject>Scaling laws</subject><subject>Shadowgraph</subject><subject>Spectrum analysis</subject><subject>Thermistor</subject><subject>Thermistors</subject><subject>Transient convective flow</subject><subject>Transition</subject><subject>Visualization</subject><issn>0017-9310</issn><issn>1879-2189</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqNkMlOwzAQQC0EEqXwD5a4cEmZcRY3N1BVNiG4wNlyvUCiNC52Eujf4xBuXDiNZtGbmUfIBcICAYvLelHV70Z2WxlC52UbrPELBgwXyJADHpAZLnmZMFyWh2QGgDwpU4RjchJCPaaQFTPytP7aGV9tTdvJhoau13vqLP0hVrFIlWsHo7pqMNQ27jNQ692WShp6rU3b7Ol4hNH0zTs3mFNyZGUTzNlvnJPXm_XL6i55fL69X10_JioF6JLMaq3yJQOrUDJAK5kGmZW5LeONPFVa52mZs0IqmfMctDGbMtU8Q6s3BfB0Ts4n7s67j96ETtSu921cKVjBEHmRlWmcupqmlHcheGPFLr4q_V4giNGiqMVfi2K0KCaLEfEwIUz8ZqhiN6joRRld-ahFaFf9H_YNJDKI0g</recordid><startdate>202111</startdate><enddate>202111</enddate><creator>Qiao, Manman</creator><creator>Gao, Zhu</creator><creator>Xu, Feng</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>202111</creationdate><title>Experimental study of transient convective flows from a suddenly heated groove</title><author>Qiao, Manman ; Gao, Zhu ; Xu, Feng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c300t-4fddc5820fc1a201fa2d0a495f993173cdd539526aca5750deeb93d741fdb6073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Convective flow</topic><topic>Groove</topic><topic>Grooves</topic><topic>Oscillations</topic><topic>Scaling laws</topic><topic>Shadowgraph</topic><topic>Spectrum analysis</topic><topic>Thermistor</topic><topic>Thermistors</topic><topic>Transient convective flow</topic><topic>Transition</topic><topic>Visualization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiao, Manman</creatorcontrib><creatorcontrib>Gao, Zhu</creatorcontrib><creatorcontrib>Xu, Feng</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering 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><jtitle>International journal of heat and mass transfer</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiao, Manman</au><au>Gao, Zhu</au><au>Xu, Feng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental study of transient convective flows from a suddenly heated groove</atitle><jtitle>International journal of heat and mass transfer</jtitle><date>2021-11</date><risdate>2021</risdate><volume>179</volume><spage>121701</spage><pages>121701-</pages><artnum>121701</artnum><issn>0017-9310</issn><eissn>1879-2189</eissn><abstract>•Transient convective flows from a groove with a bottom heated are investigated experimentally.•The evolution and property of transient convective flows are characterized.•The transition from periodic to chaotic flows is identified and discussed.
Transient convective flows from a groove with a bottom suddenly heated are investigated using shadowgraph visualization and thermistor measurement. The evolution and property of transient convective flows are characterized. The scaling laws of the thickness of the thermal fluid layer and the velocity of the plume are validated by shadowgraph data. Shadowgraph visualization demonstrates that the plume may move along the groove, which was highlighted in the previous numerical study. In addition, temperature time series measured by thermistors are used to describe the oscillations of unsteady convective flows. The frequency of the oscillations in the fully developed stage is obtained using the spectral analysis. Further, the transition from periodic to chaotic flows is identified and discussed.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ijheatmasstransfer.2021.121701</doi></addata></record> |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Convective flow Groove Grooves Oscillations Scaling laws Shadowgraph Spectrum analysis Thermistor Thermistors Transient convective flow Transition Visualization |
| title | Experimental study of transient convective flows from a suddenly heated groove |
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