Paticle Motion and Flow Structure in Grid-Generated Turbulence with Columnar Particle Dispersions
Particle motion and flow structure were experimentally investigated in grid-generated turbulence with spherical or columnar particle dispersions. Particle motions were taken by a high-speed video camera and instantaneous streamwise and horizontal velocities were measured using a PIV. The results sho...
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| Veröffentlicht in: | Nihon Kikai Gakkai rombunshuu. B hen 2008/08/25, Vol.74(744), pp.1770-1776 |
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| container_issue | 744 |
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| container_title | Nihon Kikai Gakkai rombunshuu. B hen |
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| creator | ITO, Yasumasa YAMANA, Hiroshi KOMORI, Satoru |
| description | Particle motion and flow structure were experimentally investigated in grid-generated turbulence with spherical or columnar particle dispersions. Particle motions were taken by a high-speed video camera and instantaneous streamwise and horizontal velocities were measured using a PIV. The results show that columnar particles fall without clustering in the free-falling particle experiment, whereas spherical particles form clusters during the falling process. Turbulence intensity in the grid-generated turbulence with columnar particle dispersion is larger than that in the turbulence with spherical particle dispersion. It is found by flow visualization that these differences in particle motion and fluid structure are attributed to the irregular horizontal movements and rotation of columnar particles. |
| doi_str_mv | 10.1299/kikaib.74.1770 |
| format | Article |
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Particle motions were taken by a high-speed video camera and instantaneous streamwise and horizontal velocities were measured using a PIV. The results show that columnar particles fall without clustering in the free-falling particle experiment, whereas spherical particles form clusters during the falling process. Turbulence intensity in the grid-generated turbulence with columnar particle dispersion is larger than that in the turbulence with spherical particle dispersion. It is found by flow visualization that these differences in particle motion and fluid structure are attributed to the irregular horizontal movements and rotation of columnar particles.</description><identifier>ISSN: 0387-5016</identifier><identifier>EISSN: 1884-8346</identifier><identifier>DOI: 10.1299/kikaib.74.1770</identifier><language>jpn</language><publisher>The Japan Society of Mechanical Engineers</publisher><subject>Columnar Particle ; Flow Visualization ; Liquid-Solid Two-Phase Flow ; Turbulent Flow</subject><ispartof>Transactions of the Japan Society of Mechanical Engineers Series B, 2008/08/25, Vol.74(744), pp.1770-1776</ispartof><rights>The Japan Society of Mechanical Engineers</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></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>ITO, Yasumasa</creatorcontrib><creatorcontrib>YAMANA, Hiroshi</creatorcontrib><creatorcontrib>KOMORI, Satoru</creatorcontrib><title>Paticle Motion and Flow Structure in Grid-Generated Turbulence with Columnar Particle Dispersions</title><title>Nihon Kikai Gakkai rombunshuu. B hen</title><addtitle>JSMET</addtitle><description>Particle motion and flow structure were experimentally investigated in grid-generated turbulence with spherical or columnar particle dispersions. Particle motions were taken by a high-speed video camera and instantaneous streamwise and horizontal velocities were measured using a PIV. The results show that columnar particles fall without clustering in the free-falling particle experiment, whereas spherical particles form clusters during the falling process. Turbulence intensity in the grid-generated turbulence with columnar particle dispersion is larger than that in the turbulence with spherical particle dispersion. It is found by flow visualization that these differences in particle motion and fluid structure are attributed to the irregular horizontal movements and rotation of columnar particles.</description><subject>Columnar Particle</subject><subject>Flow Visualization</subject><subject>Liquid-Solid Two-Phase Flow</subject><subject>Turbulent Flow</subject><issn>0387-5016</issn><issn>1884-8346</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNo9kM9LwzAcxYMoOHRXzzl560yaX81RppvixIHzXNLmW5etS2eSMvzvnXQKD97lw4fHQ-iGkgnNtb7buq1x1UTxCVWKnKERLQqeFYzLczQirFCZIFReonGMriKEaCY1UyNklia5ugX82iXXeWy8xbO2O-D3FPo69QGw83genM3m4CGYBBav-lD1Lfga8MGlNZ52bb_zJuClCYPtwcU9hHg0xmt00Zg2wvjUV-hj9riaPmWLt_nz9H6RbfJcpowZLVShmW0sF4Jbywzk2uiK1JQUTZNXFRcNFcpKIYBUVnOiQErWQGV5rtkVuh28-9B99RBTuXOxhrY1Hro-lkwSyQXPj-DLAG5iMp9Q7oPbmfBdnraXw5VUK10qfgz_q99n_6l6bUIJnv0ApvF08A</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>ITO, Yasumasa</creator><creator>YAMANA, Hiroshi</creator><creator>KOMORI, Satoru</creator><general>The Japan Society of Mechanical Engineers</general><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope></search><sort><creationdate>2008</creationdate><title>Paticle Motion and Flow Structure in Grid-Generated Turbulence with Columnar Particle Dispersions</title><author>ITO, Yasumasa ; YAMANA, Hiroshi ; KOMORI, Satoru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j226t-3a957893dfd4554dd3ae29a9b0c108ff2bb45f157d655e0bd9407e663febd4293</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>jpn</language><creationdate>2008</creationdate><topic>Columnar Particle</topic><topic>Flow Visualization</topic><topic>Liquid-Solid Two-Phase Flow</topic><topic>Turbulent Flow</topic><toplevel>online_resources</toplevel><creatorcontrib>ITO, Yasumasa</creatorcontrib><creatorcontrib>YAMANA, Hiroshi</creatorcontrib><creatorcontrib>KOMORI, Satoru</creatorcontrib><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><jtitle>Nihon Kikai Gakkai rombunshuu. B hen</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ITO, Yasumasa</au><au>YAMANA, Hiroshi</au><au>KOMORI, Satoru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Paticle Motion and Flow Structure in Grid-Generated Turbulence with Columnar Particle Dispersions</atitle><jtitle>Nihon Kikai Gakkai rombunshuu. B hen</jtitle><addtitle>JSMET</addtitle><date>2008</date><risdate>2008</risdate><volume>74</volume><issue>744</issue><spage>1770</spage><epage>1776</epage><pages>1770-1776</pages><issn>0387-5016</issn><eissn>1884-8346</eissn><abstract>Particle motion and flow structure were experimentally investigated in grid-generated turbulence with spherical or columnar particle dispersions. Particle motions were taken by a high-speed video camera and instantaneous streamwise and horizontal velocities were measured using a PIV. The results show that columnar particles fall without clustering in the free-falling particle experiment, whereas spherical particles form clusters during the falling process. Turbulence intensity in the grid-generated turbulence with columnar particle dispersion is larger than that in the turbulence with spherical particle dispersion. It is found by flow visualization that these differences in particle motion and fluid structure are attributed to the irregular horizontal movements and rotation of columnar particles.</abstract><pub>The Japan Society of Mechanical Engineers</pub><doi>10.1299/kikaib.74.1770</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0387-5016 |
| ispartof | Transactions of the Japan Society of Mechanical Engineers Series B, 2008/08/25, Vol.74(744), pp.1770-1776 |
| issn | 0387-5016 1884-8346 |
| language | jpn |
| recordid | cdi_proquest_miscellaneous_36064542 |
| source | J-STAGE Free; EZB-FREE-00999 freely available EZB journals |
| subjects | Columnar Particle Flow Visualization Liquid-Solid Two-Phase Flow Turbulent Flow |
| title | Paticle Motion and Flow Structure in Grid-Generated Turbulence with Columnar Particle Dispersions |
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