Stochastic scalar mixing models accounting for turbulent frequency multiscale fluctuations
Two new scalar micromixing models accounting for a turbulent frequency scale distribution are investigated. These models were derived by Sabel'nikov and Gorokhovski [Second International Symposium on Turbulence and Shear FLow Phenomena, Royal Institute of technology (KTH), Stockholm, Sweden, Ju...
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| Veröffentlicht in: | International journal of heat and fluid flow 2004-10, Vol.25 (5), p.875-883 |
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| container_title | International journal of heat and fluid flow |
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| creator | Soulard, Olivier Sabel'nikov, Vladimir Gorokhovski, Michael |
| description | Two new scalar micromixing models accounting for a turbulent frequency scale distribution are investigated. These models were derived by Sabel'nikov and Gorokhovski [Second International Symposium on Turbulence and Shear FLow Phenomena, Royal Institute of technology (KTH), Stockholm, Sweden, June 27–29, 2001] using a multiscale extension of the classical interaction by exchange with the mean (IEM) and Langevin models. They are, respectively, called Extended IEM (EIEM) and Extended Langevin (ELM) models.
The EIEM and ELM models are tested against DNS results in the case of the decay of a homogeneous scalar field in homogeneous turbulence. This comparison leads to a reformulation of the law governing the mixing frequency distribution. Finally, the asymptotic behaviour of the modeled PDF is discussed. |
| doi_str_mv | 10.1016/j.ijheatfluidflow.2004.03.008 |
| format | Article |
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The EIEM and ELM models are tested against DNS results in the case of the decay of a homogeneous scalar field in homogeneous turbulence. This comparison leads to a reformulation of the law governing the mixing frequency distribution. Finally, the asymptotic behaviour of the modeled PDF is discussed.</description><subject>Chemically reactive flows</subject><subject>Exact sciences and technology</subject><subject>Fluid dynamics</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Isotropic turbulence; homogeneous turbulence</subject><subject>Micromixing</subject><subject>Physics</subject><subject>Probability density functions</subject><subject>Reactive, radiative, or nonequilibrium flows</subject><subject>Turbulence simulation and modeling</subject><subject>Turbulent flows, convection, and heat transfer</subject><subject>Turbulent reactive flow</subject><issn>0142-727X</issn><issn>1879-2278</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqNkE9LHTEUxUNpoa_W7zAb3c14k8zkz6ILEbWC0EVbEDchk0lqHpmJJpm2fnszPKHgqqsLl3POPfeH0AmGDgNmZ_vO7x-sLi6sfnIh_ukIQN8B7QDEO7TDgsuWEC7eox3gnrSc8LuP6FPOewBg0PMduv9eonnQuXjTZKODTs3s__rlVzPHyYbcaGPiupRt42JqyprGNdilNC7Zp9Uu5rmZ11D8ZrZNrWLKqouPS_6MPjgdsj1-nUfo59Xlj4uv7e2365uL89vW9AxKSykFhh2XdOKS9U7YgcMopBaYGzsyNpKBCkuJpmQykg16mKSYhlEPbmAw0iN0esh9TLE2ykXNtY0NQS82rlkRyRiTIKvwy0FoUsw5Wacek591elYY1EZU7dUbomojqoCqSrT6T14P6e1bl_RifP4XwrAgeMBVd33QVX72t7dJZeMrKTv5ZE1RU_T_efEF-pqYUg</recordid><startdate>20041001</startdate><enddate>20041001</enddate><creator>Soulard, Olivier</creator><creator>Sabel'nikov, Vladimir</creator><creator>Gorokhovski, Michael</creator><general>Elsevier Inc</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20041001</creationdate><title>Stochastic scalar mixing models accounting for turbulent frequency multiscale fluctuations</title><author>Soulard, Olivier ; Sabel'nikov, Vladimir ; Gorokhovski, Michael</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c460t-333061f793d7964f8e570b89a817ceb66b2538e32a32dc965a5d98d5ba5f560b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Chemically reactive flows</topic><topic>Exact sciences and technology</topic><topic>Fluid dynamics</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Isotropic turbulence; homogeneous turbulence</topic><topic>Micromixing</topic><topic>Physics</topic><topic>Probability density functions</topic><topic>Reactive, radiative, or nonequilibrium flows</topic><topic>Turbulence simulation and modeling</topic><topic>Turbulent flows, convection, and heat transfer</topic><topic>Turbulent reactive flow</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Soulard, Olivier</creatorcontrib><creatorcontrib>Sabel'nikov, Vladimir</creatorcontrib><creatorcontrib>Gorokhovski, Michael</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity 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 fluid flow</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Soulard, Olivier</au><au>Sabel'nikov, Vladimir</au><au>Gorokhovski, Michael</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stochastic scalar mixing models accounting for turbulent frequency multiscale fluctuations</atitle><jtitle>International journal of heat and fluid flow</jtitle><date>2004-10-01</date><risdate>2004</risdate><volume>25</volume><issue>5</issue><spage>875</spage><epage>883</epage><pages>875-883</pages><issn>0142-727X</issn><eissn>1879-2278</eissn><coden>IJHFD2</coden><abstract>Two new scalar micromixing models accounting for a turbulent frequency scale distribution are investigated. These models were derived by Sabel'nikov and Gorokhovski [Second International Symposium on Turbulence and Shear FLow Phenomena, Royal Institute of technology (KTH), Stockholm, Sweden, June 27–29, 2001] using a multiscale extension of the classical interaction by exchange with the mean (IEM) and Langevin models. They are, respectively, called Extended IEM (EIEM) and Extended Langevin (ELM) models.
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| subjects | Chemically reactive flows Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) Isotropic turbulence homogeneous turbulence Micromixing Physics Probability density functions Reactive, radiative, or nonequilibrium flows Turbulence simulation and modeling Turbulent flows, convection, and heat transfer Turbulent reactive flow |
| title | Stochastic scalar mixing models accounting for turbulent frequency multiscale fluctuations |
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