| Low frequency oscillatory flow in a rotating curved pipe |
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| 引用本文： | 陈华军,章本照,苏霄燕. Low frequency oscillatory flow in a rotating curved pipe[J]. Journal of Zhejiang University. Science. B, 2003, 0(4) |
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| 作者姓名： | 陈华军 章本照 苏霄燕 |
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| 作者单位： | Department of Mechanics，Zhejiang University，Hangzhou 310027，China，Department of Mechanics，Zhejiang University，Hangzhou 310027，China，Department of Mechanics，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | Project (No :10 2 72 0 96)supportedbytheNationalNaturalScienceFundationofChina |
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| 摘 要： | INTRODUCTIONThemotionoftheflowinarotatingcurvedpipeisafundamentalproblem ,whosesolutionhaspotentialapplicationsingasturbines ,elec tricgenerators ,electricmotorsandsomeequip mentsusedinseparationprocesses.Itisimpor tanttoknowtheflowstructurecharacteristic…
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Low frequency oscillatory flow in a rotating curved pipe |
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| CHEN Hua jun,ZHANG Ben zhao,SU Xiao yan. Low frequency oscillatory flow in a rotating curved pipe[J]. Journal of Zhejiang University. Science. B, 2003, 0(4) |
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| Authors: | CHEN Hua jun ZHANG Ben zhao SU Xiao yan |
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| Abstract: | The low frequency oscillatory flow in a rotating curved pipe was studied by using the method of bi parameter perturbation. Perturbation solutions up to the second order were obtained and the effects of rotation on the low frequency oscillatory flow were examined in detail. The results indicated that there exists evident difference between the low frequency oscillatory flow in a rotating curved pipe and in a curved pipe without rotation. During a period, four secondary vortexes may exist on the circular cross section and the distribution of axial velocity and wall shear stress are related to the ratio of the Coriolis force to centrifugal force and the axial pressure gradient. |
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| Keywords: | Oscillatory flow Secondary flow Perturbation method Rotating pipe |
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