A numerical study of flow through wavy-walled channels

Selvarajan, S and Tulapurkara, EG and Ram, Vasanta V (1998) A numerical study of flow through wavy-walled channels. International Journal for Numerical Methods in Fluids, 26. pp. 519-531.

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A numerical procedure is developed for the analysis of flow in a channel whose walls describe a travelling wave motion. Following a perturbation method, the primitive variables are expanded in a series with the wall amplitude as the perturbation parameter. The boundary conditions are applied at the mean surface of the channel and the first-order perturbation quantities are calculated using the pseudospectral collocation method. Although limited by the linear analysis, the present approach is not restricted by the Reynolds number of the flow and the wave number and frequency of the wavy-walled channel. Using the computed wall shear stresses, the positions of flow separation and reattachment are determined. The variations in velocity and pressure with frequency of excitation are also presented.

Item Type: Article
Additional Information: Copyright for this article belongs to John Wiley amp; Sons, Ltd.
Uncontrolled Keywords: Wavy channel flow;Peristaltic motion;Spectral collocation method
Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
Depositing User: Mr. N A
Date Deposited: 21 Jun 2006
Last Modified: 01 Sep 2015 09:04
URI: http://nal-ir.nal.res.in/id/eprint/1731

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