A first-principle based multi-layer model for turbulent channel flow

Y. Wu; X. Chen; Z. S. She; F. Hussain

doi:10.1063/1.3651833

A first-principle based multi-layer model for turbulent channel flow

Y. Wu, X. Chen, Z. S. She, F. Hussain

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A quantitative model for turbulent channel flow is presented, based on the multi-layer hypothesis and the Lie-group analysis. The model describes the mean velocity profiles in the whole flow domain at a large range of Reynolds numbers (Re)-in a good agreement with present DNS results. This result is a systematic application of structural ensemble dynamics (SED) approach, which is equally applicable to other flows such as incompressible and compressible boundary layers, thus shedding light on a viable theory for complex turbulence.

Original language	English (US)
Title of host publication	Recent Progresses in Fluid Dynamics Research - Proceedings of the Sixth International Conference on Fluid Mechanics, ICFM VI
Pages	54-56
Number of pages	3
Volume	1376
DOIs	https://doi.org/10.1063/1.3651833
State	Published - Nov 8 2011
Event	Proceedings of the 6th International Conference on Fluid Mechanics: Recent Progresses in Fluid Dynamics Research, ICFM VI - Guangzhou, China Duration: Jun 30 2011 → Jul 3 2011

Other

Other	Proceedings of the 6th International Conference on Fluid Mechanics: Recent Progresses in Fluid Dynamics Research, ICFM VI
Country	China
City	Guangzhou
Period	6/30/11 → 7/3/11

Keywords

mean velocity profiles
multi-layer model
order functions
turbulent channel flow

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3651833

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Wu, Y, Chen, X, She, ZS & Hussain, F 2011, A first-principle based multi-layer model for turbulent channel flow. in Recent Progresses in Fluid Dynamics Research - Proceedings of the Sixth International Conference on Fluid Mechanics, ICFM VI. vol. 1376, pp. 54-56, Proceedings of the 6th International Conference on Fluid Mechanics: Recent Progresses in Fluid Dynamics Research, ICFM VI, Guangzhou, China, 6/30/11. https://doi.org/10.1063/1.3651833

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N2 - A quantitative model for turbulent channel flow is presented, based on the multi-layer hypothesis and the Lie-group analysis. The model describes the mean velocity profiles in the whole flow domain at a large range of Reynolds numbers (Re)-in a good agreement with present DNS results. This result is a systematic application of structural ensemble dynamics (SED) approach, which is equally applicable to other flows such as incompressible and compressible boundary layers, thus shedding light on a viable theory for complex turbulence.

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