| |
|
|
|
|
|
|
|
|
1. |
Record Nr. |
UNINA9910794335603321 |
|
|
Autore |
Bedrossian Jacob <1984-> |
|
|
Titolo |
Dynamics near the subcritical transition of the 3D Couette flow I : below threshold case / / Jacob Bedrossian, Pierre Germain, Nader Masmoudi |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Providence, RI : , : American Mathematical Society, , [2020] |
|
©2020 |
|
|
|
|
|
|
|
|
|
ISBN |
|
|
|
|
|
|
Descrizione fisica |
|
1 online resource (v, 158 pages) |
|
|
|
|
|
|
Collana |
|
Memoirs of the American Mathematical Society ; ; Number 1294 |
|
|
|
|
|
|
Classificazione |
|
35B3576E0576E3076F0676F1035B4076F25 |
|
|
|
|
|
|
Disciplina |
|
|
|
|
|
|
Soggetti |
|
Inviscid flow |
Mixing |
Shear flow |
Stability |
Three-dimensional modeling |
Damping (Mechanics) |
Viscous flow - Mathematical models |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Note generali |
|
"July 2020, volume 266, number 1294 (fourth of 6 numbers)." |
|
|
|
|
|
|
Nota di bibliografia |
|
Includes bibliographical references and index. |
|
|
|
|
|
|
Nota di contenuto |
|
Outline of the proof -- Regularization and continuation -- High norm estimate on Q2 -- High norm estimate on Q3 -- High norm estimate on Q1/0 -- High norm estimate on Q1/[not equal] -- Coordinate system controls -- Enhanced dissipation estimates -- Sobolev estimates. |
|
|
|
|
|
|
|
|
Sommario/riassunto |
|
"We study small disturbances to the periodic, plane Couette flow in the 3D incompressible Navier-Stokes equations at high Reynolds number Re. We prove that for sufficiently regular initial data of size [epsilon] [less than or equal to] c0Re-1 for some universal c0 > 0, the solution is global, remains within O(c0) of the Couette flow in L2, and returns to the Couette flow as t [right arrow] [infinity]. For times t >/-Re1/3, the streamwise dependence is damped by a mixing-enhanced dissipation effect and the solution is rapidly attracted to the class of "2.5 dimensional" streamwise-independent solutions referred to as streaks. Our analysis contains perturbations that experience a transient growth of kinetic energy from O(Re-1) to O(c0) due to the algebraic linear |
|
|
|
|
|
|
|
|
|
|
|
|
|
instability known as the lift-up effect. Furthermore, solutions can exhibit a direct cascade of energy to small scales. The behavior is very different from the 2D Couette flow, in which stability is independent of Re, enstrophy experiences a direct cascade, and inviscid damping is dominant (resulting in a kind of inverse energy cascade). In 3D, inviscid damping will play a role on one component of the velocity, but the primary stability mechanism is the mixing-enhanced dissipation. Central to the proof is a detailed analysis of the interplay between the stabilizing effects of the mixing and enhanced dissipation and the destabilizing effects of the lift-up effect, vortex stretching, and weakly nonlinear instabilities connected to the non-normal nature of the linearization"-- |
|
|
|
|
|
|
2. |
Record Nr. |
UNINA9910811141203321 |
|
|
Titolo |
Living under austerity : Greek society in crisis / / edited by Evdoxios Doxiadis and Aimee Placas |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
New York ; ; Oxford : , : Berghahn, , 2018 |
|
|
|
|
|
|
|
ISBN |
|
|
|
|
|
|
Descrizione fisica |
|
1 online resource (374 pages) |
|
|
|
|
|
|
Classificazione |
|
|
|
|
|
|
Disciplina |
|
|
|
|
|
|
Soggetti |
|
Financial crises - Social aspects - Greece |
Greece Economic conditions 21st century |
Greece Social conditions 21st century |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Nota di bibliografia |
|
Includes bibliographical references and index. |
|
|
|
|
|
|
Nota di contenuto |
|
Frontmatter -- Contents -- Tables and Figures -- Note on Transliteration -- Abbreviations -- Introduction. Crisis and Austerity -- Part I. The Political Dimension of the Crisis -- Chapter 1. The “Illegitimacy” of Foreign Loans: Greece, the Great Powers, and Foreign Debt in the Long Nineteenth Century -- Chapter 2. The Political Consequences of the Crisis in Greece: Charismatic Leadership and Its Discontents -- Chapter 3. Golden Dawn: From the Margins of Greece to the Forefront of Europe -- Chapter 4. Protest, Elections, and Austerity |
|
|
|
|
|
|
|
|
|
|
|
Politics in Greece -- Chapter 5/ From Boom to Bust: A Comparative Analysis of Greece and Spain under Austerity -- Part II. State Functions, the Welfare State, and the Economic Crisis -- Chapter 6. Crisis and the Changes in the Mediascape: Greece and the Globe -- Chapter 7. Crime and Criminal Justice Policy in Greece during the Financial Crisis -- Chapter 8. The Downsizing and Commodifi cation of Health Care: The Appalling Greek Experience since 2010 -- Part III. Changes in Greek Society and Culture -- Chapter 9. Gendering the Crisis: Claiming New Values and Agencies beyond Destitution -- Chapter 10. From the Twilight Zone to the Limelight: Shifting Terrains of Asylum and Rights in Greece -- Chapter 11. Giname Kinezoi! (We’ve Become Chinese!): Critical Developments in the Imaginary of Chinese Capitalism -- Chapter 12. Disrupted and Disrupting Consumption: Transformations in Buying and Borrowing in Greece -- Conclusion -- Index |
|
|
|
|
|
|
Sommario/riassunto |
|
Since its sovereign debt crisis in 2009, Greece has been living under austerity, with no apparent end in sight. This volume explores the effects of policies pursued by the Greek state since then (under the direction of the Troika), and how Greek society has responded. In addition to charting the actual effects of the Greek crisis on politics, health care, education, media, and other areas, the book both examines and challenges the “crisis” era as the context for changing attitudes and developments within Greek society. |
|
|
|
|
|
|
|
| |