An LES-wall model for turbulent backstep flow with wall transpiration and pressure gradient

Shih Chao Lee; Jing Tang Yang; Yei-Chin Chao

An LES-wall model for turbulent backstep flow with wall transpiration and pressure gradient

Shih Chao Lee, Jing Tang Yang, Yei-Chin Chao

Research output: Contribution to journal › Article › peer-review

Abstract

The separated flow field behind a backstep with lateral transpiration is computed by using large-eddy simulation (LES). A new wall law involving effects of transpiration rate and pressure gradient is proposed for incorporation into LES to treat complicated wall-bounded turbulent flows. Comparison of major characteristics for turbulent separated flow between calculations and available data is made for cases without and with mass transpiration at the bottom wall. For both cases, the global trend of time-averaged quantities provided through the present approach shows perceptible superiority over three other methods commonly used in the literature.

Original language	English
Pages (from-to)	577-588
Number of pages	12
Journal	Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao
Volume	23
Issue number	6
Publication status	Published - 2002 Dec

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "An LES-wall model for turbulent backstep flow with wall transpiration and pressure gradient",

abstract = "The separated flow field behind a backstep with lateral transpiration is computed by using large-eddy simulation (LES). A new wall law involving effects of transpiration rate and pressure gradient is proposed for incorporation into LES to treat complicated wall-bounded turbulent flows. Comparison of major characteristics for turbulent separated flow between calculations and available data is made for cases without and with mass transpiration at the bottom wall. For both cases, the global trend of time-averaged quantities provided through the present approach shows perceptible superiority over three other methods commonly used in the literature.",

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publisher = "Chinese Mechanical Engineering Society",

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An LES-wall model for turbulent backstep flow with wall transpiration and pressure gradient. / Lee, Shih Chao; Yang, Jing Tang; Chao, Yei-Chin.
In: Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao, Vol. 23, No. 6, 12.2002, p. 577-588.

Research output: Contribution to journal › Article › peer-review

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AU - Yang, Jing Tang

AU - Chao, Yei-Chin

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N2 - The separated flow field behind a backstep with lateral transpiration is computed by using large-eddy simulation (LES). A new wall law involving effects of transpiration rate and pressure gradient is proposed for incorporation into LES to treat complicated wall-bounded turbulent flows. Comparison of major characteristics for turbulent separated flow between calculations and available data is made for cases without and with mass transpiration at the bottom wall. For both cases, the global trend of time-averaged quantities provided through the present approach shows perceptible superiority over three other methods commonly used in the literature.

AB - The separated flow field behind a backstep with lateral transpiration is computed by using large-eddy simulation (LES). A new wall law involving effects of transpiration rate and pressure gradient is proposed for incorporation into LES to treat complicated wall-bounded turbulent flows. Comparison of major characteristics for turbulent separated flow between calculations and available data is made for cases without and with mass transpiration at the bottom wall. For both cases, the global trend of time-averaged quantities provided through the present approach shows perceptible superiority over three other methods commonly used in the literature.

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JF - Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao

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ER -

An LES-wall model for turbulent backstep flow with wall transpiration and pressure gradient

Abstract

All Science Journal Classification (ASJC) codes

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