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Journal of Zhejiang University SCIENCE A 2003 Vol.4 No.4 P.407-414

http://doi.org/10.1631/jzus.2003.0407


Low frequency oscillatory flow in a rotating curved pipe


Author(s):  CHEN Hua-jun, ZHANG Ben-zhao, SU Xiao-yan

Affiliation(s):  Department of Mechanics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   mec_zbzq@emb.zju.edu.cn

Key Words:  Oscillatory flow, Secondary flow, Perturbation method, Rotating 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 A, 2003, 4(4): 407-414.

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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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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