Flow characteristics of tandem circular cylinders: Effects of diameter ratio and longitudinal spacing

Jiunn Chi Wu; Yung Chun Hu

doi:10.2514/6.1993-3088

Flow characteristics of tandem circular cylinders: Effects of diameter ratio and longitudinal spacing

Jiunn Chi Wu, Yung Chun Hu

機械工程學系

研究成果: 會議貢獻類型 › 會議論文 › 同行評審

2 引文斯高帕斯（Scopus）

摘要

The characteristics of low Reynolds number flow of two circular cylinders in tandem arrangement has been studied by solving the Navier-Stokes equations in terms of stream-function and vorticity. The flow field is treated as a multiply-connected region and a vorticity constraint condition is derived to calculate the wall stream function for each cylinder. Flow solutions are obtained to show several flow features of the cross flow over the tandem cylinders (i.e., wake interference, fluctuations of lift and drag forces and vortex shedding), with two diameter ratio (0.33 and 1) and for longitudinal spacing L/D =1.5 ~ 4.0. Computed drag coefficients and Strouhal number are compared with experimental data and numerical results. Agreement as well as discrepancy of the comparisons is discussed.

原文	???core.languages.en_GB???
DOIs	https://doi.org/10.2514/6.1993-3088
出版狀態	已出版 - 1993
事件	AIAA 23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference, 1993 - Orlando, United States 持續時間: 6 7月 1993 → 9 7月 1993

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???event.eventtypes.event.conference???	AIAA 23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference, 1993
國家/地區	United States
城市	Orlando
期間	6/07/93 → 9/07/93

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10.2514/6.1993-3088

臺美(US)國合計畫-天氣氣候模式之改進與緊急應變策略之擬定以提昇極端天氣災害防救之能力(5/5)
Lin, P.-L. (PI)
1/09/19 → 31/08/23
研究計畫: Research

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abstract = "The characteristics of low Reynolds number flow of two circular cylinders in tandem arrangement has been studied by solving the Navier-Stokes equations in terms of stream-function and vorticity. The flow field is treated as a multiply-connected region and a vorticity constraint condition is derived to calculate the wall stream function for each cylinder. Flow solutions are obtained to show several flow features of the cross flow over the tandem cylinders (i.e., wake interference, fluctuations of lift and drag forces and vortex shedding), with two diameter ratio (0.33 and 1) and for longitudinal spacing L/D =1.5 ~ 4.0. Computed drag coefficients and Strouhal number are compared with experimental data and numerical results. Agreement as well as discrepancy of the comparisons is discussed.",

author = "Wu, {Jiunn Chi} and Hu, {Yung Chun}",

note = "Publisher Copyright: {\textcopyright} 1993 by J. C. Wu. Published by the American Institute of Aeronautics and Astronautics,Inc. All Rights reserved.; AIAA 23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference, 1993 ; Conference date: 06-07-1993 Through 09-07-1993",

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T2 - AIAA 23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference, 1993

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AU - Hu, Yung Chun

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N2 - The characteristics of low Reynolds number flow of two circular cylinders in tandem arrangement has been studied by solving the Navier-Stokes equations in terms of stream-function and vorticity. The flow field is treated as a multiply-connected region and a vorticity constraint condition is derived to calculate the wall stream function for each cylinder. Flow solutions are obtained to show several flow features of the cross flow over the tandem cylinders (i.e., wake interference, fluctuations of lift and drag forces and vortex shedding), with two diameter ratio (0.33 and 1) and for longitudinal spacing L/D =1.5 ~ 4.0. Computed drag coefficients and Strouhal number are compared with experimental data and numerical results. Agreement as well as discrepancy of the comparisons is discussed.

AB - The characteristics of low Reynolds number flow of two circular cylinders in tandem arrangement has been studied by solving the Navier-Stokes equations in terms of stream-function and vorticity. The flow field is treated as a multiply-connected region and a vorticity constraint condition is derived to calculate the wall stream function for each cylinder. Flow solutions are obtained to show several flow features of the cross flow over the tandem cylinders (i.e., wake interference, fluctuations of lift and drag forces and vortex shedding), with two diameter ratio (0.33 and 1) and for longitudinal spacing L/D =1.5 ~ 4.0. Computed drag coefficients and Strouhal number are compared with experimental data and numerical results. Agreement as well as discrepancy of the comparisons is discussed.

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DO - 10.2514/6.1993-3088

M3 - 會議論文

AN - SCOPUS:85006355668

Y2 - 6 July 1993 through 9 July 1993

ER -

Flow characteristics of tandem circular cylinders: Effects of diameter ratio and longitudinal spacing

摘要

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專案

臺美(US)國合計畫-天氣氣候模式之改進與緊急應變策略之擬定以提昇極端天氣災害防救之能力(5/5)

引用此