Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-19T10:33:48.287Z Has data issue: false hasContentIssue false

The propulsion by large amplitude waves of uniflagellar micro-organisms of finite length

Published online by Cambridge University Press:  19 April 2006

R. D. Dresdner
Affiliation:
Department of Mechanical Engineering, University of California, Berkeley 94720 Present address: Bioengineering Program, University of Illinois at Chicago Circle, Chicago, II. 60680.
D. F. Katz
Affiliation:
Department of Mechanical Engineering, University of California, Berkeley 94720
S. A. Berger
Affiliation:
Department of Mechanical Engineering, University of California, Berkeley 94720

Abstract

The fluid mechanics of self-propelling, slender uniflagellar micro-organisms is examined theoretically. The mathematical analysis of these motions is based upon the Stokes equations, and the body is represented by a continuous distribution of stokeslets and doublets of undetermined strength. Since the body is self-propelling, additional constraints on the total force and moment upon it are applied. A system of singular integral and auxiliary equations, in which the propulsive velocity and viscous force per unit length are the unknowns, is derived. The vector integral equation is decomposed into near- and far-field contributions, and the solution is determined by a straightforward iterative procedure. The flagella considered are of constant radius and are restricted to planar undulations. The analysis is applied to a small amplitude wave form of infinite length, and a third-order analytic solution is obtained. By means of numerical computation, the method is extended to large amplitude wave forms of both infinite and finite length. The validity and accuracy of the solution method, the effect of local curvature, and an approximate model for an attached cell body-proper are evaluated in light of alternative theories.

The solution method is systematically applied to a variety of wave-form shapes representative of actual flagella. For a sinusoidal wave form, the variations in propulsive velocity, power output and propulsive efficiency are examined as functions of the number of wavelengths on the flagellum, the amplitude and the flagellar radius. Wave forms of variable amplitude and variable wavelength are also considered. Among the significant results are the effect of the cell body on pitching, the significant differences between constant frequency and constant phase-speed undulations for variable wavelength wave forms, and comparisons with other pertinent theories.

Type
Research Article
Copyright
© 1980 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

Batchelor, G. K. 1970 Slender-body theory for particles of arbitrary cross section in Stokes flow. J. Fluid Mech. 44, 419440.Google Scholar
Blake, J. 1972 A model for the micro-structure in ciliated organisms. J. Fluid Mech. 25, 123.Google Scholar
Brennen, C. & Winet, H. 1977 Fluid mechanics of propulsion by cilia and flagella. Ann. Rev. Fluid Mech. 9, 339398.Google Scholar
Brokaw, C. J. 1970 Bending moments in free-swimming flagella. J. Exp. Biol. 53, 445464.Google Scholar
Brokaw, C. J. 1972 Computer simulation of flagellar movement. I. Demonstration of stable bend propagation and bend initiation by the sliding filament model. Biophys. J. 12, 564586.Google Scholar
Chwang, A. T. & Wu, T. Y. 1971 A note on the helical movement of micro-organisms. Proc. Roy. Soc. B 178, 327346.Google Scholar
Cox, R. G. 1970 The motion of long slender bodies in a viscous fluid, Part 1. General theory. J. Fluid Mech. 44, 791810.Google Scholar
Denehy, M. A. 1975 The propulsion of nonrotating ram and oyster spermatozoa. Biol. Reprod. 13, 1729.Google Scholar
Dersdner, R. 1978 Theoretical Studies on the motion of self-propelled flagella. Ph.D. thesis, University of California, Berkeley.
Garcia de la torre, J. & Bloomfield, V. A. 1977 Hydrodynamic theory of swimming of flagellated micro-organisms. Biophys. J. 20, 4967.Google Scholar
Gray, J. & Hancock, G. J. 1955 The propulsion of sea-urchin spermatozoa. J. Exp. Biol. 32, 802814.Google Scholar
Hancock, G. J. 1953 The self-propulsion of microscopic organisms through liquids. Proc. Roy. Soc. A 217, 96121.Google Scholar
Happel, J. & Brenner, H. 1973 Low Reynolds Number Hydrodynamics, 2nd rev. edn. Leyden: Noordhoff.
Higdon, J. J. L. 1979 A hydrodynamic analysis of flagellar propulsion. J. Fluid Mech. 90, 685711.Google Scholar
Hildebrand, F. B. 1965 Methods of Applied Mathematics, 2nd edn. Englewood Cliffs, New Jersey: Prentice Hall.
Holwill, M. E. J. & Miles, C. A. 1971 Hydrodynamic analysis of non-uniform flagellar undulations. J. Theor. Biol. 31, 2542.Google Scholar
Johnson, R. E. 1977 Slender-body theory for Stokes flow and flagellar hydrodynamics. Ph.D. thesis, California Institute of Technology, Pasadena.
Johnson, R. E. & Brokaw, C. J. 1979 Flagellar hydrodynamics. A comparison between resistive-force theory and slender-body theory. Biophys. J. 25, 113127.Google Scholar
Katz, D. F. & Pedrotti, L. 1977 Geotaxis by motile spermatozoa: Hydrodynamic reorientation. J. Theor. Biol. 67, 723732.Google Scholar
Katz, D. F., Mills, R. N. & Pritchett, T. R. 1978 The movement of human spermatozoa in cervical mucus. J. Reprod. Fert. 53, 259265.Google Scholar
Katz, D. F., Yanagimachi, R. & Dresdner, R. D. 1978 Movement characteristics and power output of guinea-pig and hamster spermatozoa in relation to activation. J. Reprod. Fert. 52, 167172.Google Scholar
Keller, J. B. & Rubinow, S. I. 1976 Swimming of flagellated microorganisms. Biophys. J. 16, 151170.Google Scholar
Ladyzhenskaya, O. A. 1969 The Mathematical Theory of Viscous Incompressible Flow, 2nd edn. Gordon and Breach.
Lighthill, M. J. 1975 Mathematical Biofluiddynamics. Philadelphia: SIAM.
Lighthill, M. J. 1976 Flagellar hydrodynamics. SIAM Rev. 18, 161230.Google Scholar
Mestre, N. J. DE & Katz, D. F. 1974 Stokes flow about a sphere attached to a slender body. J. Fluid Mech. 64, 817826.Google Scholar
Mills, R. 1978 Experimental Studies on the Hydrodynamics of Human Spermatozoa. Ph.D. thesis, University of California, Berkeley.
Overstreet, J. W. & Katz, D. F. 1977 Sperm transport and selection in the female genital tract. In Development in Mammals, vol. 2 (ed. M. H. Johnson), pp. 3165. North-Holland.
Pironneau, O. & Katz, D. F. 1974 Optimal swimming of flagellated micro-organisms. J. Fluid Mech. 66, 391415.Google Scholar
Rikmenspoel, R. 1965 The tail movement of bull spermatozoa. Observations and model calculations. Biophys. J. 5, 366392.Google Scholar
Shack, W. J., Fray, C. S. & Lardner, T. J. 1974 Observations on the hydrodynamics and swimming motions of mammalian spermatozoa. Bull. Math. Bio. 36, 555565.Google Scholar
Shen, J. S., Tam, P. Y., Shack, W. J. & Lardner, T. J. 1975 Large amplitude motion of selfpropelling slender filaments at low Reynolds numbers. J. Biomech. 8, 229236.Google Scholar
Taylor, G. I. 1951 Analysis of the swimming of microscopic organisms. Proc. Roy. Soc. A 209, 447461.Google Scholar
Taylor, G. I. 1952 The action of waving cylindrical tails in propelling microscopic organisms. Proc. Roy. Soc. A 211, 225239.Google Scholar
Tillett, J. P. K. 1970 Axial and transverse Stokes flow past slender axisymmetric bodies. J. Fluid Mech. 44, 401417.Google Scholar
Tuck, E. O. 1964 Some methods for flows past blunt slender bodies. J. Fluid Mech. 18, 619635.Google Scholar