Controlling Mesoscale Turbulence : The Impact of Translational and Rotational Constraints on Pattern Formation in Microswimmer Suspensions / / by Henning Reinken
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| Autore: |
Reinken Henning
|
| Titolo: |
Controlling Mesoscale Turbulence : The Impact of Translational and Rotational Constraints on Pattern Formation in Microswimmer Suspensions / / by Henning Reinken
|
| Pubblicazione: | Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2024 |
| Edizione: | 1st ed. 2024. |
| Descrizione fisica: | 1 online resource (233 pages) |
| Disciplina: | 620.19 |
| Soggetto topico: | Soft condensed matter |
| Colloids | |
| Statistical Physics | |
| System theory | |
| Soft Materials | |
| Complex Systems | |
| Fluids | |
| Nota di contenuto: | Introduction -- Theoretical Concepts -- Derivation of a Continuum Theory -- Unconstrained Mesoscale Turbulence -- Reorienting External Fields -- Obstacle Lattices,- Conclusions and Outlook -- Appendix. |
| Sommario/riassunto: | This 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. |
| Titolo autorizzato: | Controlling Mesoscale Turbulence |
| ISBN: | 3-031-67636-X |
| Formato: | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione: | Inglese |
| Record Nr.: | 9910890190903321 |
| Lo trovi qui: | Univ. Federico II |
| Opac: | Controlla la disponibilità qui |
Serie:
Springer Theses, Recognizing Outstanding Ph.D. Research, . 2190-5061