A nonlinear kp-εp particle two-scale turbulence model and its application
A particle nonlinear two-scale kp-εp turbulence model is proposed for simulating the anisotropic turbulent two-phase flow. The particle kinetic energy equation for two-scale fluctuation, particle energy transfer rate equation for large-scale fluctuation, and particle turbulent kinetic energy dissipa...
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Veröffentlicht in: | Acta mechanica Sinica 2007-12, Vol.23 (6), p.621-625 |
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creator | Zhuoxiong Zeng Zhuozhi Zeng Yihua Xu |
description | A particle nonlinear two-scale kp-εp turbulence model is proposed for simulating the anisotropic turbulent two-phase flow. The particle kinetic energy equation for two-scale fluctuation, particle energy transfer rate equation for large-scale fluctuation, and particle turbulent kinetic energy dissipation rate equation for small-scale fluctuation are derived and closed. This model is used to simulate gas-particle flows in a sudden-expansion chamber. The simulation is com- pared with the experiment and with those obtained by using another two kinds of tow-phase turbulence model, such as the single-scale k-ε two-phase turbulence model and the particle two-scale second-order moment (USM) two-phase turbulence model. It is shown that the present model gives simulation in much better agreement with the experiment than the single-scale k-ε two-phase turbulence model does and is almost as good as the particle two-scale USM turbu-lence model. |
doi_str_mv | 10.1007/s10409-007-0119-9 |
format | Article |
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The particle kinetic energy equation for two-scale fluctuation, particle energy transfer rate equation for large-scale fluctuation, and particle turbulent kinetic energy dissipation rate equation for small-scale fluctuation are derived and closed. This model is used to simulate gas-particle flows in a sudden-expansion chamber. The simulation is com- pared with the experiment and with those obtained by using another two kinds of tow-phase turbulence model, such as the single-scale k-ε two-phase turbulence model and the particle two-scale second-order moment (USM) two-phase turbulence model. 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The particle kinetic energy equation for two-scale fluctuation, particle energy transfer rate equation for large-scale fluctuation, and particle turbulent kinetic energy dissipation rate equation for small-scale fluctuation are derived and closed. This model is used to simulate gas-particle flows in a sudden-expansion chamber. The simulation is com- pared with the experiment and with those obtained by using another two kinds of tow-phase turbulence model, such as the single-scale k-ε two-phase turbulence model and the particle two-scale second-order moment (USM) two-phase turbulence model. It is shown that the present model gives simulation in much better agreement with the experiment than the single-scale k-ε two-phase turbulence model does and is almost as good as the particle two-scale USM turbu-lence model.</description><subject>模型处理</subject><subject>气体颗粒</subject><subject>非线性kp-εp粒子</subject><issn>0567-7718</issn><issn>1614-3116</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNotzE1OwzAQQGELgUQoHICdxd4wY8d2sqwqflWJTffVZOIUU-OEJBUn4xqcCRCs3rd6QlwiXCOAv5kQSqjVDxUg1qo-EgU6LJVBdMeiAOu88h6rU3E2Ta8AxqHHQjwtZe5zijnQKPeD-voc5EDjHDkFOX_0amL61WFsDilkDvKtb0OSlFsZ50nSMKTINMc-n4uTjtIULv67EJu7283qQa2f7x9Xy7Xi2s-KGmRjG9BMrG0bTOgYjS41Bt0EYwyQheB13WjyuqxsCQyGuatMWXmNZiGu_rb80ufde8y7bUO872IKW-00uhqt-QaWXU7G</recordid><startdate>200712</startdate><enddate>200712</enddate><creator>Zhuoxiong Zeng Zhuozhi Zeng Yihua Xu</creator><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope></search><sort><creationdate>200712</creationdate><title>A nonlinear kp-εp particle two-scale turbulence model and its application</title><author>Zhuoxiong Zeng Zhuozhi Zeng Yihua Xu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c97t-ab1c35b02cac25de3efc132421e2be3330a50e729b2a7248540c03ccf83487213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>模型处理</topic><topic>气体颗粒</topic><topic>非线性kp-εp粒子</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhuoxiong Zeng Zhuozhi Zeng Yihua Xu</creatorcontrib><collection>维普_期刊</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>维普中文期刊数据库</collection><collection>中文科技期刊数据库- 镜像站点</collection><jtitle>Acta mechanica Sinica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhuoxiong Zeng Zhuozhi Zeng Yihua Xu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A nonlinear kp-εp particle two-scale turbulence model and its application</atitle><jtitle>Acta mechanica Sinica</jtitle><addtitle>Acta Mechanica Sinica</addtitle><date>2007-12</date><risdate>2007</risdate><volume>23</volume><issue>6</issue><spage>621</spage><epage>625</epage><pages>621-625</pages><issn>0567-7718</issn><eissn>1614-3116</eissn><abstract>A particle nonlinear two-scale kp-εp turbulence model is proposed for simulating the anisotropic turbulent two-phase flow. The particle kinetic energy equation for two-scale fluctuation, particle energy transfer rate equation for large-scale fluctuation, and particle turbulent kinetic energy dissipation rate equation for small-scale fluctuation are derived and closed. This model is used to simulate gas-particle flows in a sudden-expansion chamber. The simulation is com- pared with the experiment and with those obtained by using another two kinds of tow-phase turbulence model, such as the single-scale k-ε two-phase turbulence model and the particle two-scale second-order moment (USM) two-phase turbulence model. It is shown that the present model gives simulation in much better agreement with the experiment than the single-scale k-ε two-phase turbulence model does and is almost as good as the particle two-scale USM turbu-lence model.</abstract><doi>10.1007/s10409-007-0119-9</doi><tpages>5</tpages></addata></record> |
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subjects | 模型处理 气体颗粒 非线性kp-εp粒子 |
title | A nonlinear kp-εp particle two-scale turbulence model and its application |
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