Helical flow of a power-law fluid in a thin annulus with permeable walls

    Authors

    K. Vajravelu; S. Sreenadhb;G. V. Reddy

    Comments

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    Abbreviated Journal Title

    Int. J. Non-Linear Mech.

    Keywords

    helical flow; power-law fluid; permeable walls; SYMMETRIC PIPE; Mechanics

    Abstract

    Helical flow of a power-law fluid in a thin annulus is investigated with a view to modeling biofluid flow around the commonly occurring non-planar bend. The inner cylinder is rotating with angular velocity omega and the outer cylinder is permeable. The velocity distribution and the fractional increase in volume flow rate are obtained. When the permeability parameter sigma -- > infinity, the results agree with those of Bird et al. [Dynamics of polymer liquids, vol. 1, Fluid Mechanics, 1977, Wiley, New York]. Numerical methods are used to find the velocity components and the volume flow rate for the helical flow of a physiological fluid (power-law fluid). Possible advantages of the observed helical flow characteristics with permeability effects are discussed. (C) 2006 Elsevier Ltd. All rights reserved.

    Journal Title

    International Journal of Non-Linear Mechanics

    Volume

    41

    Issue/Number

    6-7

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    761

    Last Page

    765

    WOS Identifier

    WOS:000241139600001

    ISSN

    0020-7462

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