A high-fidelity turbulence length scale for flow simulation

Jing Lei Xu; Ning Hu; Ge Gao

doi:10.1007/978-3-642-31818-4_12

A high-fidelity turbulence length scale for flow simulation

Jing Lei Xu^*
, Ning Hu
, Ge Gao

^*此作品的通讯作者

能源与动力工程学院

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

4 引用（Scopus）

摘要

The difference and connection between RANS and LES is briefly discussed. After reviewing the success of several LES models some necessary qualities for modeled length scale are concluded. A new 3D von Karman length scale which leads to SAS models is thus proposed for real-life flow simulation. Its LES function is extensively evaluated via the simulation of benchmark isotropic decaying turbulence. This length scale can fully make use of the local mesh and yield satisfactorily fine results even at coarse mesh resolutions, and moreover the results have some sort of unity.

源语言	英语
主期刊名	Progress in Hybrid RANS-LES Modelling
主期刊副标题	Papers Contributed to the 4th Symposium on Hybrid RANS-LES Methods, Beijing, China, September 2011
出版商	Springer Verlag
页	141-145
页数	5
ISBN（印刷版）	9783642318177
DOI	https://doi.org/10.1007/978-3-642-31818-4_12
出版状态	已出版 - 2012

出版系列

姓名	Notes on Numerical Fluid Mechanics and Multidisciplinary Design
卷	117
ISSN（印刷版）	1612-2909

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10.1007/978-3-642-31818-4_12

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引用此

Xu, J. L., Hu, N., & Gao, G. (2012). A high-fidelity turbulence length scale for flow simulation. 在 Progress in Hybrid RANS-LES Modelling: Papers Contributed to the 4th Symposium on Hybrid RANS-LES Methods, Beijing, China, September 2011 (页码 141-145). (Notes on Numerical Fluid Mechanics and Multidisciplinary Design; 卷 117). Springer Verlag. https://doi.org/10.1007/978-3-642-31818-4_12

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title = "A high-fidelity turbulence length scale for flow simulation",

abstract = "The difference and connection between RANS and LES is briefly discussed. After reviewing the success of several LES models some necessary qualities for modeled length scale are concluded. A new 3D von Karman length scale which leads to SAS models is thus proposed for real-life flow simulation. Its LES function is extensively evaluated via the simulation of benchmark isotropic decaying turbulence. This length scale can fully make use of the local mesh and yield satisfactorily fine results even at coarse mesh resolutions, and moreover the results have some sort of unity.",

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Xu, JL, Hu, N & Gao, G 2012, A high-fidelity turbulence length scale for flow simulation. 在 Progress in Hybrid RANS-LES Modelling: Papers Contributed to the 4th Symposium on Hybrid RANS-LES Methods, Beijing, China, September 2011. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 卷 117, Springer Verlag, 页码 141-145. https://doi.org/10.1007/978-3-642-31818-4_12

A high-fidelity turbulence length scale for flow simulation. / Xu, Jing Lei; Hu, Ning; Gao, Ge.
Progress in Hybrid RANS-LES Modelling: Papers Contributed to the 4th Symposium on Hybrid RANS-LES Methods, Beijing, China, September 2011. Springer Verlag, 2012. 页码 141-145 (Notes on Numerical Fluid Mechanics and Multidisciplinary Design; 卷 117).

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

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N2 - The difference and connection between RANS and LES is briefly discussed. After reviewing the success of several LES models some necessary qualities for modeled length scale are concluded. A new 3D von Karman length scale which leads to SAS models is thus proposed for real-life flow simulation. Its LES function is extensively evaluated via the simulation of benchmark isotropic decaying turbulence. This length scale can fully make use of the local mesh and yield satisfactorily fine results even at coarse mesh resolutions, and moreover the results have some sort of unity.

AB - The difference and connection between RANS and LES is briefly discussed. After reviewing the success of several LES models some necessary qualities for modeled length scale are concluded. A new 3D von Karman length scale which leads to SAS models is thus proposed for real-life flow simulation. Its LES function is extensively evaluated via the simulation of benchmark isotropic decaying turbulence. This length scale can fully make use of the local mesh and yield satisfactorily fine results even at coarse mesh resolutions, and moreover the results have some sort of unity.

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PB - Springer Verlag

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A high-fidelity turbulence length scale for flow simulation

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