Computational study of vortex breakdown in circular tube

Jiunn Chi Wu; San San Hwang

Computational study of vortex breakdown in circular tube

Jiunn Chi Wu, San San Hwang

機械工程學系

研究成果: 會議貢獻類型 › 會議論文 › 同行評審

1 引文斯高帕斯（Scopus）

摘要

The axisymmetric mode of vortex breakdown has been studied by solving the incompressible, axi-symmetric, unsteady Navier-Stokes equations. The equations are cast into the streamfunction-vorticity formulation and solved with the predict or-corrector-multiple-iteration (PCMI) finite difference method. Effects of inflow, wall boundary conditions and Reynolds number on breakdown structure were emphasized. Numerical results predicted breakdown-bubble and the evolution of breakdown can be steady, periodic, or unsteady depends on these effects. Computed solutions show many similar flow characters that observed in experiment.

原文	???core.languages.en_GB???
出版狀態	已出版 - 1991
事件	AIAA 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1991 - Honolulu, United States 持續時間: 24 6月 1991 → 26 6月 1991

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???event.eventtypes.event.conference???	AIAA 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1991
國家/地區	United States
城市	Honolulu
期間	24/06/91 → 26/06/91

引用此

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AU - Wu, Jiunn Chi

AU - Hwang, San San

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N2 - The axisymmetric mode of vortex breakdown has been studied by solving the incompressible, axi-symmetric, unsteady Navier-Stokes equations. The equations are cast into the streamfunction-vorticity formulation and solved with the predict or-corrector-multiple-iteration (PCMI) finite difference method. Effects of inflow, wall boundary conditions and Reynolds number on breakdown structure were emphasized. Numerical results predicted breakdown-bubble and the evolution of breakdown can be steady, periodic, or unsteady depends on these effects. Computed solutions show many similar flow characters that observed in experiment.

AB - The axisymmetric mode of vortex breakdown has been studied by solving the incompressible, axi-symmetric, unsteady Navier-Stokes equations. The equations are cast into the streamfunction-vorticity formulation and solved with the predict or-corrector-multiple-iteration (PCMI) finite difference method. Effects of inflow, wall boundary conditions and Reynolds number on breakdown structure were emphasized. Numerical results predicted breakdown-bubble and the evolution of breakdown can be steady, periodic, or unsteady depends on these effects. Computed solutions show many similar flow characters that observed in experiment.

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Computational study of vortex breakdown in circular tube

摘要

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指紋

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