Inertial focusing of elliptical particles and formation of self-organizing trains in a channel flow
The inertial focusing of elliptical particles and the formation of self-organizing trains in a channel flow are studied by using the lattice Boltzmann method. The effects of particle aspect ratio (α), particle concentration (Φ), Reynolds number (Re), and blockage ratio (k) on self-organizing single-...
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Veröffentlicht in: | Physics of fluids (1994) 2021-01, Vol.33 (1) |
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description | The inertial focusing of elliptical particles and the formation of self-organizing trains in a channel flow are studied by using the lattice Boltzmann method. The effects of particle aspect ratio (α), particle concentration (Φ), Reynolds number (Re), and blockage ratio (k) on self-organizing single-line and staggered particle trains are explored. The results show that a single-line particle train is dynamically formed mainly due to the inclination of height (IH) for the particles in the train. The elliptical particle with large α, Φ, Re, and small k facilitates self-organizing of the particle train with relatively stable spacing for a long travel distance. With increasing α, Φ, Re, and k, the value of IH increases and the interparticle spacing decreases. Four kinds of stability conditions for a self-organizing staggered particle train exist depending on Re, k, and α. The threshold Re to form the stable staggered particle train increases with increasing k and is insensitive to α. As Re increases, the spacing of the staggered particle train for the particles with low k and large α is more likely to fluctuate within a certain range. The staggered particle train can be dynamically formed when Re is larger than a critical value. This critical value of Re increases with increasing k and decreasing α. The interparticle spacing of the formed staggered particle train, which is insensitive to Φ, increases with increasing Re and α and decreasing k. |
doi_str_mv | 10.1063/5.0035668 |
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The effects of particle aspect ratio (α), particle concentration (Φ), Reynolds number (Re), and blockage ratio (k) on self-organizing single-line and staggered particle trains are explored. The results show that a single-line particle train is dynamically formed mainly due to the inclination of height (IH) for the particles in the train. The elliptical particle with large α, Φ, Re, and small k facilitates self-organizing of the particle train with relatively stable spacing for a long travel distance. With increasing α, Φ, Re, and k, the value of IH increases and the interparticle spacing decreases. Four kinds of stability conditions for a self-organizing staggered particle train exist depending on Re, k, and α. The threshold Re to form the stable staggered particle train increases with increasing k and is insensitive to α. As Re increases, the spacing of the staggered particle train for the particles with low k and large α is more likely to fluctuate within a certain range. The staggered particle train can be dynamically formed when Re is larger than a critical value. This critical value of Re increases with increasing k and decreasing α. The interparticle spacing of the formed staggered particle train, which is insensitive to Φ, increases with increasing Re and α and decreasing k.</description><identifier>ISSN: 1070-6631</identifier><identifier>EISSN: 1089-7666</identifier><identifier>DOI: 10.1063/5.0035668</identifier><identifier>CODEN: PHFLE6</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Aspect ratio ; Channel flow ; Computational fluid dynamics ; Fluid dynamics ; Fluid flow ; Physics ; Reynolds number</subject><ispartof>Physics of fluids (1994), 2021-01, Vol.33 (1)</ispartof><rights>Author(s)</rights><rights>2021 Author(s). Published under license by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c327t-b3c1c5a8d2bb20cd8ff2e1abd213bb9ce07e2f635bb315c70f0d747212dc50183</citedby><cites>FETCH-LOGICAL-c327t-b3c1c5a8d2bb20cd8ff2e1abd213bb9ce07e2f635bb315c70f0d747212dc50183</cites><orcidid>0000-0002-2182-3933 ; 0000-0002-1384-446X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,790,4497,27903,27904</link.rule.ids></links><search><creatorcontrib>Hu, Xiao</creatorcontrib><creatorcontrib>Lin, Jianzhong</creatorcontrib><creatorcontrib>Guo, Yu</creatorcontrib><creatorcontrib>Ku, Xiaoke</creatorcontrib><title>Inertial focusing of elliptical particles and formation of self-organizing trains in a channel flow</title><title>Physics of fluids (1994)</title><description>The inertial focusing of elliptical particles and the formation of self-organizing trains in a channel flow are studied by using the lattice Boltzmann method. The effects of particle aspect ratio (α), particle concentration (Φ), Reynolds number (Re), and blockage ratio (k) on self-organizing single-line and staggered particle trains are explored. The results show that a single-line particle train is dynamically formed mainly due to the inclination of height (IH) for the particles in the train. The elliptical particle with large α, Φ, Re, and small k facilitates self-organizing of the particle train with relatively stable spacing for a long travel distance. With increasing α, Φ, Re, and k, the value of IH increases and the interparticle spacing decreases. Four kinds of stability conditions for a self-organizing staggered particle train exist depending on Re, k, and α. The threshold Re to form the stable staggered particle train increases with increasing k and is insensitive to α. As Re increases, the spacing of the staggered particle train for the particles with low k and large α is more likely to fluctuate within a certain range. The staggered particle train can be dynamically formed when Re is larger than a critical value. This critical value of Re increases with increasing k and decreasing α. The interparticle spacing of the formed staggered particle train, which is insensitive to Φ, increases with increasing Re and α and decreasing k.</description><subject>Aspect ratio</subject><subject>Channel flow</subject><subject>Computational fluid dynamics</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Physics</subject><subject>Reynolds number</subject><issn>1070-6631</issn><issn>1089-7666</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp90MtKAzEUBuAgCtbqwjcYcKUwNZfm0qUUL4WCG12HJJPUlGkyJlNFn96MLboQXCUk3_kP5wBwjuAEQUau6QRCQhkTB2CEoJjVnDF2ONw5rBkj6Bic5LyGRc0wGwGzCDb1XrWVi2abfVhV0VW2bX3Xe1OeO1W-TWtzpUJTUNqo3scwqGxbV8e0UsF_DoV9Uj7kyodKVeZFhWBLahvfT8GRU222Z_tzDJ7vbp_mD_Xy8X4xv1nWhmDe15oYZKgSDdYaQ9MI57BFSjcYEa1nxkJusWOEak0QNRw62PApxwg3hkIkyBhc7HK7FF-3NvdyHbcplJYST7kQU8EJLepyp0yKOSfrZJf8RqUPiaAcdiip3O-w2Kudzcb333P_4LeYfqHsGvcf_pv8BXb3gO8</recordid><startdate>20210101</startdate><enddate>20210101</enddate><creator>Hu, Xiao</creator><creator>Lin, Jianzhong</creator><creator>Guo, Yu</creator><creator>Ku, Xiaoke</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-2182-3933</orcidid><orcidid>https://orcid.org/0000-0002-1384-446X</orcidid></search><sort><creationdate>20210101</creationdate><title>Inertial focusing of elliptical particles and formation of self-organizing trains in a channel flow</title><author>Hu, Xiao ; Lin, Jianzhong ; Guo, Yu ; Ku, Xiaoke</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c327t-b3c1c5a8d2bb20cd8ff2e1abd213bb9ce07e2f635bb315c70f0d747212dc50183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Aspect ratio</topic><topic>Channel flow</topic><topic>Computational fluid dynamics</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Physics</topic><topic>Reynolds number</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hu, Xiao</creatorcontrib><creatorcontrib>Lin, Jianzhong</creatorcontrib><creatorcontrib>Guo, Yu</creatorcontrib><creatorcontrib>Ku, Xiaoke</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physics of fluids (1994)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hu, Xiao</au><au>Lin, Jianzhong</au><au>Guo, Yu</au><au>Ku, Xiaoke</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inertial focusing of elliptical particles and formation of self-organizing trains in a channel flow</atitle><jtitle>Physics of fluids (1994)</jtitle><date>2021-01-01</date><risdate>2021</risdate><volume>33</volume><issue>1</issue><issn>1070-6631</issn><eissn>1089-7666</eissn><coden>PHFLE6</coden><abstract>The inertial focusing of elliptical particles and the formation of self-organizing trains in a channel flow are studied by using the lattice Boltzmann method. The effects of particle aspect ratio (α), particle concentration (Φ), Reynolds number (Re), and blockage ratio (k) on self-organizing single-line and staggered particle trains are explored. The results show that a single-line particle train is dynamically formed mainly due to the inclination of height (IH) for the particles in the train. The elliptical particle with large α, Φ, Re, and small k facilitates self-organizing of the particle train with relatively stable spacing for a long travel distance. With increasing α, Φ, Re, and k, the value of IH increases and the interparticle spacing decreases. Four kinds of stability conditions for a self-organizing staggered particle train exist depending on Re, k, and α. The threshold Re to form the stable staggered particle train increases with increasing k and is insensitive to α. As Re increases, the spacing of the staggered particle train for the particles with low k and large α is more likely to fluctuate within a certain range. The staggered particle train can be dynamically formed when Re is larger than a critical value. This critical value of Re increases with increasing k and decreasing α. The interparticle spacing of the formed staggered particle train, which is insensitive to Φ, increases with increasing Re and α and decreasing k.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0035668</doi><tpages>17</tpages><orcidid>https://orcid.org/0000-0002-2182-3933</orcidid><orcidid>https://orcid.org/0000-0002-1384-446X</orcidid></addata></record> |
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source | AIP Journals Complete; Alma/SFX Local Collection |
subjects | Aspect ratio Channel flow Computational fluid dynamics Fluid dynamics Fluid flow Physics Reynolds number |
title | Inertial focusing of elliptical particles and formation of self-organizing trains in a channel flow |
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