00963nam0-22003251--450-99000921790040332120100908111639.088-211-6601-5000921790FED01000921790(Aleph)000921790FED0100092179020100908d1988----km-y0itay50------baitaITy-------001yy<<Il >>Terrore ricordatomemoria e tradizione dell'esperienza rivoluzionariaSergio Luzzattopresentazione di Michel VovelleGenovaMarietti1988VIII, 174 p.22 cmCollana di saggistica35944.0420itaLuzzatto,Sergio<1963- >151703Vovelle,Michel<1933- >ITUNINARICAUNIMARCBK990009217900403321SDI-KG 120043SDISDITerrore ricordato777024UNINA03556nam 22006375 450 991089019090332120250807153217.03-031-67636-X10.1007/978-3-031-67636-9(MiAaPQ)EBC31692528(Au-PeEL)EBL31692528(CKB)36231092500041(DE-He213)978-3-031-67636-9(EXLCZ)993623109250004120240928d2024 u| 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierControlling Mesoscale Turbulence The Impact of Translational and Rotational Constraints on Pattern Formation in Microswimmer Suspensions /by Henning Reinken1st ed. 2024.Cham :Springer Nature Switzerland :Imprint: Springer,2024.1 online resource (233 pages)Springer Theses, Recognizing Outstanding Ph.D. Research,2190-50613-031-67635-1 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.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5061Soft condensed matterColloidsStatistical physicsSystem theorySoft MaterialsColloidsStatistical PhysicsComplex SystemsFluidsSoft condensed matter.Colloids.Statistical physics.System theory.Soft Materials.Colloids.Statistical Physics.Complex Systems.Fluids.620.19Reinken Henning1772200MiAaPQMiAaPQMiAaPQBOOK9910890190903321Controlling Mesoscale Turbulence4272679UNINA