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The Extended Malkus–Robbins Dynamo as a Perturbed Lorenz System

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Recent investigations of some self-exciting Faraday-disk homopolar dynamos [Hide, R. and Moroz, I. M., Physica D 134, 1999, 387–301; Moroz, I. M. and Hide, R., International Journal of Bifurcation and Chaos 2000, 2701–2716; Moroz, I. M., International Journal of Bifurcation and Chaos 13, 2003, 147–161; Moroz, I. M., International Journal of Bifurcation and Chaos, to appear] have yielded the classic Lorenz equations as a special limit when one of the principal bifurcation parameters is zero. In this paper we focus upon one of those models [Moroz, I. M., International Journal of Bifurcation and Chaos 13, 2003, 147–161] and illustrate what happens to some of the lowest order unstable periodic orbits as this parameter is increased from zero.

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References

  1. Hide, R. and Moroz, I. M., ‘Effects due to induced azimuthal eddy currents in the self-exciting Faraday disk homopolar dynamo with a nonlinear series motor. Part I. Two special cases’, Physica D 134, 1999, 387–301.

    Google Scholar 

  2. Moroz, I. M. and Hide, R., ‘Effects due to induced azimuthal eddy currents in the Faraday disk self-exciting homopolar dynamo with a nonlinear series motor. Part II. The general case’, International Journal of Bifurcation and Chaos 2000, 2701–2716.

  3. Moroz, I. M., ‘The Malkus–Robbins dynamo with a linear series motor’, International Journal of Bifurcation and Chaos 13, 2003, 147–161.

    Article  Google Scholar 

  4. Moroz, I. M., ‘The Malkus–Robbins dynamo with a nonlinear series motor’, International Journal of Bifurcation and Chaos 14, 2004, 2885–2892.

    Article  Google Scholar 

  5. Hide, R., Skeldon, A. C., and Acheson, D. J., ‘A study of two novel self-exciting single-disk homopolar dynamos: Theory’, Proceedings of the Royal Society of London A 452, 1996, 1369–1395.

  6. Moroz, I. M., ‘On the behaviour of a self-exciting Faraday-disk homopolar dynamo with a variable nonlinear series motor’, International Journal of Bifurcation and Chaos, 2002, 2123–2135.

  7. Moroz, I. M., Hide, R., and Soward, A. M., ‘On self-exciting coupled Faraday disk homopolar dynamos driving series motors’, Physica D 117, 1998, 128–144.

    Google Scholar 

  8. Hide, R., ‘The nonlinear differential equations governing a hierarchy of self-exciting coupled Faraday-disk homopolar dynamos’, Physics of the Earth and Planetary Interiors 103, 1997, 281–291.

    Article  Google Scholar 

  9. Moroz, I. M., Smith, L. A., and Hide, R., ‘Synchronised chaos in coupled double disk homopolar dynamos’, International Journal of Bifurcation and Chaos 8, 1998, 2125–2133.

    Article  Google Scholar 

  10. Moroz, I. M., ‘Synchronised dynamics in three coupled Faraday disk homopolar dynamos’, in Fluid Dynamics and the Environment: Dynamical Approaches, Springer Verlag (ed.), 2000, pp. 225–238.

  11. Goldbrum, P., Moroz, I. M., and Hide, R., ‘On the biasing effect of a battery on a self-exciting Faraday disk homopolar dynamo loaded with a linear series motor’, International Journal of Bifurcation and Chaos 10, 2000, 1875–1885.

    Article  Google Scholar 

  12. Moroz, I. M., ‘Behaviour of a self-exciting Faraday-disk homopolar dynamo with battery in the presence of an external magnetic field’, International Journal of Bifurcation and Chaos, 2001, 1695–1705.

  13. Koga, S., ‘Phase description method to time averages in the Lorenz system’, Progress of Theoretical Physics 76, 1986, 335–355.

    Google Scholar 

  14. Carroll, T. L., ‘Approximating chaotic time series through unstable periodic orbits’, Physical Review E 59, 1999, 1615–1621.

    Article  CAS  Google Scholar 

  15. Robbins, K. A., ‘A new approach to sub-critical instability and turbulent transitions in a simple dynamo’, Mathematical Proceedings of the Cambridge Philosophical Society 82, 1977, 309–325.

  16. Hénon, M., ‘On the numerical computation of Poincaré maps’, Physica D 5, 1982, 412–414.

    Google Scholar 

  17. Franceschini, V., Gilberti, C., and Zheng, Z., ‘Characterisation of the Lorenz attractor by unstable periodic orbits’, Nonlinearity 6, 1993, 251–258.

    Article  Google Scholar 

  18. Viswanath, D., ‘Symbolic dynamics and periodic orbits of the Lorenz attractor’, Nonlinearity 16, 2003, 1035–1056.

    Article  Google Scholar 

  19. Hide, R. and Moroz, I. M., ‘Physically realistic Faraday disk dynamos’, in Mathematical Aspects of Natural Dynamos, Springer-Verlag (ed.), 2004.

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Correspondence to IRENE M. MOROZ.

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MOROZ, I.M. The Extended Malkus–Robbins Dynamo as a Perturbed Lorenz System. Nonlinear Dyn 41, 191–210 (2005). https://doi.org/10.1007/s11071-005-2808-x

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  • DOI: https://doi.org/10.1007/s11071-005-2808-x

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