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020 _a9783031676369
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024 7 _a10.1007/978-3-031-67636-9
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100 1 _aReinken, Henning.
_eauthor.
_0(orcid)0000-0001-8361-876X
_1https://orcid.org/0000-0001-8361-876X
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_985169
245 1 0 _aControlling Mesoscale Turbulence
_h[electronic resource] :
_bThe Impact of Translational and Rotational Constraints on Pattern Formation in Microswimmer Suspensions /
_cby Henning Reinken.
250 _a1st ed. 2024.
264 1 _aCham :
_bSpringer Nature Switzerland :
_bImprint: Springer,
_c2024.
300 _aXX, 221 p. 68 illus., 49 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
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490 1 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5061
505 0 _aIntroduction -- Theoretical Concepts -- Derivation of a Continuum Theory -- Unconstrained Mesoscale Turbulence -- Reorienting External Fields -- Obstacle Lattices,- Conclusions and Outlook -- Appendix.
520 _aThis thesis combines methods from statistical physics and nonlinear dynamics to advance research on the pattern formation in active fluids in several directions. In particular, it focuses on mesoscale turbulence, a state observed in microswimmer suspensions, which is characterized by the emergence of dynamic vortex patterns. The first major contribution concerns the bottom-up derivation of a frequently used continuum model of mesoscale turbulence from a set of particle-resolved stochastic equations. Utilizing the model, mesoscale turbulence is shown to induce nontrivial transport properties including a regime of optimal diffusion. The thesis then explores possible strategies of control. One of these relies on an external field that leads to stripe-like structures and can even suppress patterns entirely. The other involves geometric confinement realized by strategically placed obstacles that can reorganize the flow into a variety of ordered vortex structures. The turbulence transition inside an obstacle lattice is shown to have an intriguing analogy to an equilibrium transition in the Ising universality class. As a whole, this thesis provides important contributions to the understanding and control of turbulence in active fluids, as well as outlining exciting future directions, including applications. It includes a substantial introduction to the topic, which is suitable for newcomers to the field.
650 0 _aSoft condensed matter.
_966723
650 0 _aColloids.
_985170
650 0 _aStatistical Physics.
_970323
650 0 _aSystem theory.
_966519
650 1 4 _aSoft Materials.
_966725
650 2 4 _aColloids.
_985170
650 2 4 _aStatistical Physics.
_970323
650 2 4 _aComplex Systems.
_966520
650 2 4 _aFluids.
_967540
710 2 _aSpringerLink (Online service)
773 0 _tSpringer Nature eBook
776 0 8 _iPrinted edition:
_z9783031676352
776 0 8 _iPrinted edition:
_z9783031676376
776 0 8 _iPrinted edition:
_z9783031676383
830 0 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5061
_966370
856 4 0 _uhttps://doi.org/10.1007/978-3-031-67636-9
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