scholarly journals Turbulent mixing and beyond: non-equilibrium processes from atomistic to astrophysical scales I

2013 ◽  
Vol 371 (1982) ◽  
pp. 20120436 ◽  
Author(s):  
S. I. Abarzhi ◽  
S. Gauthier ◽  
K. R. Sreenivasan
Keyword(s):  
Present State ◽  
Turbulent Mixing ◽  
Specific Problem ◽  
Equilibrium Dynamics ◽  
Equilibrium Processes ◽  
Turbulence Mixing ◽  
Broad Variety ◽  
The Subject ◽  
Non Equilibrium

In this Introduction, we summarize and provide a perspective on 11 articles on ‘Turbulent mixing and beyond’. The papers represent the broad variety of themes of the subject, and are concerned with fundamental aspects of turbulence, mixing and non-equilibrium dynamics. While each paper deals with a specific problem, the collection gives a panoramic overview of the subject at its present state of understanding.

scholarly journals Turbulent mixing and beyond: non-equilibrium processes from atomistic to astrophysical scales II

2013 ◽  
Vol 371 (2003) ◽  
pp. 20130268 ◽  
Author(s):  
S. I. Abarzhi ◽  
S. Gauthier ◽  
K. R. Sreenivasan
Keyword(s):  
Turbulent Mixing ◽  
Hydrodynamic Instabilities ◽  
Numerical Studies ◽  
Equilibrium Processes ◽  
The Subject ◽  
Non Equilibrium

This Introduction summarizes and provides a perspective on the papers representing one of the key themes of the ‘Turbulent mixing and beyond’ programme—the hydrodynamic instabilities of the Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) type and their applications in nature and technology. The collection is intended to present the reader a balanced overview of the theoretical, experimental and numerical studies of the subject and to assess what is firm in our knowledge of the RT and RM turbulent mixing.

scholarly journals Turbulent mixing and beyond: non-equilibrium processes from atomistic to astrophysical scales

2013 ◽  
Vol 371 (1982) ◽  
pp. 20120435 ◽  
Author(s):  
S. I. Abarzhi ◽  
S. Gauthier ◽  
K. R. Sreenivasan
Keyword(s):  
Turbulent Mixing ◽  
Large Scale ◽  
Energy Systems ◽  
Equilibrium Processes ◽  
And Mathematics ◽  
Non Equilibrium

Turbulent mixing is a source of paradigm problems in physics, engineering and mathematics. Beyond this important interdisciplinary role, it has immense consequences for a broad range of applications in astrophysics, geophysics, climate and large-scale energy systems. In two volumes, we summarize and provide a perspective on the topic through some 20 articles focusing on turbulent mixing and beyond. The volumes are grouped, somewhat loosely, into those associated with fundamental aspects of turbulence and those specific to Rayleigh–Taylor turbulent mixing.

scholarly journals Turbulent mixing and beyond

2010 ◽  
Vol 368 (1916) ◽  
pp. 1539-1546 ◽  
Author(s):  
S. I. Abarzhi ◽  
K. R. Sreenivasan
Keyword(s):  
Turbulent Flows ◽  
Accretion Disks ◽  
Turbulent Mixing ◽  
Specific Problem ◽  
Premixed Combustion ◽  
Mantle Lithosphere ◽  
Planetary Interiors ◽  
Equilibrium Dynamics ◽  
Stellar Convection ◽  
Physical Phenomena

Turbulence is a supermixer. Turbulent mixing has immense consequences for physical phenomena spanning astrophysical to atomistic scales under both high- and low-energy-density conditions. It influences thermonuclear fusion in inertial and magnetic confinement systems; governs dynamics of supernovae, accretion disks and explosions; dominates stellar convection, planetary interiors and mantle-lithosphere tectonics; affects premixed and non-premixed combustion; controls standard turbulent flows (wall-bounded and free—subsonic, supersonic as well as hypersonic); as well as atmospheric and oceanic phenomena (which themselves have important effects on climate). In most of these circumstances, the mixing phenomena are driven by non-equilibrium dynamics. While each article in this collection dwells on a specific problem, the purpose here is to seek a few unified themes amongst diverse phenomena.

Multiplexed Laser Induced Fluorescence and Non-Equilibrium Processes in Arcjets.

1994 ◽  
Author(s):  
Dennis Keefer ◽  
Robert Rhodes ◽  
Trevor Moeller ◽  
David Burtner
Keyword(s):  
Laser Induced Fluorescence ◽  
Equilibrium Processes ◽  
Non Equilibrium

scholarly journals Temperature chaos is present in off-equilibrium spin-glass dynamics

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Marco Baity-Jesi ◽  
Enrico Calore ◽  
Andrés Cruz ◽  
Luis Antonio Fernandez ◽  
José Miguel Gil-Narvion ◽  
...  
Keyword(s):  
Spin Glass ◽  
Dynamic Effect ◽  
Large Degree ◽  
Equilibrium Temperature ◽  
Experimental Conditions ◽  
Temperature Changes ◽  
Equilibrium Dynamics ◽  
Glass Dynamics ◽  
Extreme Sensitivity ◽  
Non Equilibrium

AbstractExperiments featuring non-equilibrium glassy dynamics under temperature changes still await interpretation. There is a widespread feeling that temperature chaos (an extreme sensitivity of the glass to temperature changes) should play a major role but, up to now, this phenomenon has been investigated solely under equilibrium conditions. In fact, the very existence of a chaotic effect in the non-equilibrium dynamics is yet to be established. In this article, we tackle this problem through a large simulation of the 3D Edwards-Anderson model, carried out on the Janus II supercomputer. We find a dynamic effect that closely parallels equilibrium temperature chaos. This dynamic temperature-chaos effect is spatially heterogeneous to a large degree and turns out to be controlled by the spin-glass coherence length ξ. Indeed, an emerging length-scale ξ* rules the crossover from weak (at ξ ≪ ξ*) to strong chaos (ξ ≫ ξ*). Extrapolations of ξ* to relevant experimental conditions are provided.

scholarly journals Epidemic growth and Griffiths effects on an emergent network of excited atoms

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
T. M. Wintermantel ◽  
M. Buchhold ◽  
S. Shevate ◽  
M. Morgado ◽  
Y. Wang ◽  
...  
Keyword(s):  
Complex Systems ◽  
Power Laws ◽  
Excitation Density ◽  
Griffiths Phase ◽  
Many Body ◽  
Excited Atoms ◽  
Equilibrium Dynamics ◽  
Many Body Systems ◽  
Excitation Number ◽  
Non Equilibrium

AbstractWhether it be physical, biological or social processes, complex systems exhibit dynamics that are exceedingly difficult to understand or predict from underlying principles. Here we report a striking correspondence between the excitation dynamics of a laser driven gas of Rydberg atoms and the spreading of diseases, which in turn opens up a controllable platform for studying non-equilibrium dynamics on complex networks. The competition between facilitated excitation and spontaneous decay results in sub-exponential growth of the excitation number, which is empirically observed in real epidemics. Based on this we develop a quantitative microscopic susceptible-infected-susceptible model which links the growth and final excitation density to the dynamics of an emergent heterogeneous network and rare active region effects associated to an extended Griffiths phase. This provides physical insights into the nature of non-equilibrium criticality in driven many-body systems and the mechanisms leading to non-universal power-laws in the dynamics of complex systems.

scholarly journals Rydberg atom formation in ultracold plasmas: Non-equilibrium dynamics of recombination

2009 ◽  
Vol 194 (6) ◽  
pp. 062020
Author(s):  
H R Sadeghpour ◽  
T Pohl ◽  
D Vrinceanu
Keyword(s):  
Rydberg Atom ◽  
Ultracold Plasmas ◽  
Equilibrium Dynamics ◽  
Non Equilibrium

History of Mathematics in the Islamic World: The Present State of the Art

1985 ◽  
Vol 19 (1) ◽  
pp. 9-33 ◽  
Author(s):  
J. L. Berggren
Keyword(s):  
Present State ◽  
State Of The Art ◽  
History Of Mathematics ◽  
Islamic Culture ◽  
Islamic World ◽  
History Of ◽  
The Subject ◽  
Mathematical Sciences ◽  
Islamic Mathematics

In Recent Years, many discoveries in the history of Islamic mathematics have not been reported outside the specialist literature, even though they raise issues of interest to a larger audience. Thus, our aim in writing this survey is to provide to scholars of Islamic culture an account of the major themes and discoveries of the last decade of research on the history of mathematics in the Islamic world. However, the subject of mathematics comprised much more than what a modern mathematician might think of as belonging to mathematics, so our survey is an overview of what may best be called the “mathematical sciences” in Islam; that is, in addition to such topics as arithmetic, algebra, and geometry we will also be interested in mechanics, optics, and mathematical instruments.

Non-equilibrium dynamics of colloids on disordered substrates

2003 ◽  
Vol 318 (1-2) ◽  
pp. 146-151 ◽  
Author(s):  
Jiangxing Chen ◽  
Yigang Cao ◽  
Zhengkuan Jiao
Keyword(s):  
Equilibrium Dynamics ◽  
Non Equilibrium

Non-equilibrium dynamics of block copolymer micelles in solution: recent insights and open questions

Soft Matter ◽  
2010 ◽  
Vol 6 (11) ◽  
pp. 2351 ◽  
Author(s):  
Antonia G. Denkova ◽  
Eduardo Mendes ◽  
Marc-Olivier Coppens
Keyword(s):  
Block Copolymer ◽  
Equilibrium Dynamics ◽  
Open Questions ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Non Equilibrium
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