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Controlling mesoscale turbulencethe impact of translational and rotational constraints on pattern formation in microswimmer suspensions /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Controlling mesoscale turbulenceby Henning Reinken.
Reminder of title:	the impact of translational and rotational constraints on pattern formation in microswimmer suspensions /
Author:	Reinken, Henning.
Published:	Cham :Springer Nature Switzerland :2024.
Description:	xx, 221 p. :ill. (some col.), digital ;24 cm.
Contained By:	Springer Nature eBook
Subject:	TurbulenceMathematical models.
Online resource:	https://doi.org/10.1007/978-3-031-67636-9
ISBN:	9783031676369$q(electronic bk.)

Controlling mesoscale turbulencethe impact of translational and rotational constraints on pattern formation in microswimmer suspensions /
Reinken, Henning.

Controlling mesoscale turbulencethe impact of translational and rotational constraints on pattern formation in microswimmer suspensions /[electronic resource] :by Henning Reinken. - Cham :Springer Nature Switzerland :2024. - xx, 221 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5061. - Springer theses..

Introduction -- Theoretical Concepts -- Derivation of a Continuum Theory -- Unconstrained Mesoscale Turbulence -- Reorienting External Fields -- Obstacle Lattices,- Conclusions and Outlook -- Appendix.

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.

ISBN: 9783031676369$q(electronic bk.)

Standard No.: 10.1007/978-3-031-67636-9doiSubjects--Topical Terms:

197021
Turbulence
--Mathematical models.

LC Class. No.: TA357.5.T87

Dewey Class. No.: 532.0527

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