The Lyapunov exponents for the partitioned-pipe mixer

Authors

  • Tomasz Stręk Poznań University of Technology
    Poland

Keywords:

partitioned-pipe mixer, chaos, Lyapunov exponents

Abstract

This paper presents a mechanical model of the partitioned-pipe mixer (PPM) in case where pipe of the static mixer rotates with angular periodic velocity. Mixing becomes more efficient if the forcing of fluid mixing process is time periodic. Chaos in duct flows can be achieved by time modulation or by spatial changes along the duct axis. The values of Lyapunov exponents for flow in PPM are calculated.

References

[1] H. Aref, S. Balachandar. Chaotic advection in a Stokes flow. Physics of Fluids, 29: 3515- 3521, 1986.
[2] J. Awrejcewicz. Oscillations in Discrete Deterministic Systems (in Polish). WNT, Warsaw, 1996.
[3] G. Bajer, F. A. McRobie, J. M. T. Thomson. Implication of chaos theory for engineering. Proc. Inst. Mech. Engrs., 211, part C: 349- 363, 1998.
[4] G. L. Baker, J. P. Gollub. Chaotic dynamics: an introduction. University Press, Cambridge, 1996.
[5] P. G. Drazin. Nonlinear Systems. Cambridge Uviversity Press, Cambridge, 1992.

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Published

2023-01-27

Issue

pp. 271-280

Section

Articles

How to Cite

Stręk, T. (2023). The Lyapunov exponents for the partitioned-pipe mixer. Computer Assisted Methods in Engineering and Science, 10(3), 271-280. https://cames3.ippt.pan.pl/index.php/cames/article/view/1075