Hostname: page-component-77c89778f8-m42fx Total loading time: 0 Render date: 2024-07-17T18:37:18.686Z Has data issue: false hasContentIssue false

Existence of viscous eddies near boundaries

Published online by Cambridge University Press:  20 April 2006

N. Liron
Affiliation:
Department of Mathematics, I.I.T. The Technion, Haifa, Israel
J. R. Blake
Affiliation:
Department of Mathematics, The University of Wollongong, P.O. Box 1144, Wollongong, N.S.W. 2500, Australia

Abstract

Kinematic and dynamic conditions for the existence, or otherwise, of viscous eddies due to point, ring or a line distribution of stokeslets near no-slip boundaries are investigated. Boundaries considered are (i) a single plane boundary, (ii) two parallel plane boundaries, (iii) an infinite cylinder, and (iv) a finite cylinder. It is found that the following constraints on the fluid lead to the existence of eddies (i) a zero flux condition, (ii) confinement due to boundaries, (iii) streamline convergence near the singularity, and (iv) the interaction of flow fields due to adjacent stokeslets. The existence or non-existence of various viscous eddies is illustrated and discussed in detail for the case of infinite line distributions of stokeslets (i.e. a two-dimensional stokeslet). The paper suggests that flow fields produced by sessile micro-organisms are determined primarily by the container geometry in which they are located.

Type
Research Article
Copyright
© 1981 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Abramowitz, M. A. & Stegun, I. A. 1965 Handbook of Mathematical Functions, pp. 590592. Dover.
Aderogba, K. & Blake, J. R. 1978 Action of a force near the planar surface between two semi-infinite immiscible liquids at very low Reynolds numbers. Bull. Aust. Math. Soc. 18, 345356. Addendum Bull. Aust. Math Soc. 19, 309–318.Google Scholar
Batchelor, G. K. 1967 An Introduction to Fluid Dynamics, p. 222. Cambridge University Press.
Blake, J. R. 1971 A note on the image system for a stokeslet in a no-slip boundary. Proc. Camb. Phil. Soc. 70, 303310.Google Scholar
Blake, J. R. 1979 On the generation of viscous toroidal eddies in a cylinder. J. Fluid Mech. 95, 209222.Google Scholar
Davis, A. M. J. & O'Neill, M. E. 1977 The development of viscous wakes in a Stokes flow when a particle is near a large particle. Chem. Engng Sci. 32, 899906.Google Scholar
Jeffrey, D. J. & Sherwood, J. D. 1980 Streamline patterns and eddies in low-Reynolds-number flow. J. Fluid Mech. 96, 315334.Google Scholar
Liron, N. 1978 Fluid transport by cilia between parallel plates. J. Fluid Mech. 86, 705726.Google Scholar
Liron, N. & Mochon, S. 1976 Stokes flow for a stokeslet between parallel flat plates. J. Engng Math. 10, 287303.Google Scholar
Liu, C. H. & Joseph, D. C. 1978 Stokes flow in conical trenches. SIAM J. Appl. Math. 34, 286296.Google Scholar
Moffatt, H. K. 1964 Viscous and resistive eddies near a sharp corner. J. Fluid Mech. 18, 118.Google Scholar
Sleigh, M. A. & Barlow, D. 1976 Collection of food by Vorticella. Trans. Am. Microsc. Soc. 95, 482486.
Watson, G. N. 1948 A Treatise on the Theory of Bessel Functions, 2nd edn, p. 367. Cambridge University Press.
Yoo, J. Y. & Joseph, D. C. 1978 Stokes flow in a trench between concentric cylinders. SIAM J. Appl. Math. 34, 247285.Google Scholar