scholarly journals Simulations of Radiative‐Convective‐Dynamical Equilibrium

2020 ◽  
Vol 12 (3) ◽  
Author(s):  
Robert A. Warren ◽  
Martin S. Singh ◽  
Christian Jakob
Keyword(s):  
Dynamical Equilibrium

scholarly journals The Dynamical Equilibrium of Galaxy Clusters

1997 ◽  
Vol 476 (1) ◽  
pp. L7-L10 ◽  
Author(s):  
R. G. Carlberg ◽  
H. K. C. Yee ◽  
E. Ellingson ◽  
S. L. Morris ◽  
R. Abraham ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
Dynamical Equilibrium

scholarly journals Actuator Disc Flow Calculated by Relaxation: An Approach to the Analysis Problem of Turbomachinery

1972 ◽  
Author(s):  
H. J. Schröder ◽  
P. Schuster
Keyword(s):  
Logical Consequence ◽  
Relaxation Method ◽  
Rotating Flow ◽  
Analysis Problem ◽  
Dynamical Equilibrium ◽  
Actuator Disc ◽  
Flow Through ◽  
Leading Edges

When dealing with axisymmetric rotating flow through turbomachines of a given geometry, the existence of discontinuities, due to incidence at the leading edges of the blades, has to be accepted as a logical consequence of axisymmetry. By introducing special conditions resulting from dynamical equilibrium considerations, a relaxation method has been enabled to cope with these discontinuities.

scholarly journals X-Ray Photon Correlation Spectroscopy with Coherent Nanobeams: A Numerical Study

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 766
Author(s):  
Oier Bikondoa ◽  
Dina Carbone
Keyword(s):  
Photon Correlation Spectroscopy ◽  
Numerical Study ◽  
Heterogeneous Systems ◽  
Local Information ◽  
Correlation Spectroscopy ◽  
Photon Correlation ◽  
Dynamical Equilibrium ◽  
X Ray ◽  
Temporal Correlations ◽  
Dynamic Phenomena

X-ray photon correlation spectroscopy accesses a wide variety of dynamic phenomena at the nanoscale by studying the temporal correlations among photons that are scattered by a material in dynamical equilibrium when it is illuminated with a coherent X-ray beam. The information that is obtained is averaged over the illuminated area, which is generally of the order of several square microns. We propose here that more local information can be obtained by using nanobeams with great potential for the study of heterogeneous systems and show the feasibility of this approach with the support of numerical simulations.

scholarly journals Evolutionary Models of Interstellar Chemistry

1992 ◽  
Vol 150 ◽  
pp. 205-210
Author(s):  
Sheo S. Prasad
Keyword(s):  
Gas Phase ◽  
Chemical Processes ◽  
Evolutionary Models ◽  
Evolutionary Perspective ◽  
Interstellar Chemistry ◽  
Interstellar Clouds ◽  
Dynamical Equilibrium ◽  
Chemical Models ◽  
Gas Phase Molecules ◽  
Fixed Condition

Evolutionary chemical models are ultimately unavoidable for a full understanding of interstellar clouds. They include not only the chemical processes but also the dynamical processes by which the modeled object came to be the way it is. From an evolutionary perspective, dark cores may be ephemeral objects and dynamical equilibrium an exception rather than norm. Evolutionary models have numerous advantages over “classical” fixed condition equilibrium models. They have the potential to provide more elegant explanations for the observed inter-cloud and intra-cloud chemical differences. The problem of the depletion of gas phase molecules by condensation onto the grain may also be less serious in evolutionary models. Hence, these models should be actively developed.

scholarly journals Elucidating the dynamical equilibrium of C60molecules on Ag(111)

2012 ◽  
Vol 86 (20) ◽  
Author(s):  
K. Pussi ◽  
H. I. Li ◽  
Heekeun Shin ◽  
L. N. Serkovic Loli ◽  
A. K. Shukla ◽  
...  
Keyword(s):  
Dynamical Equilibrium

On the Energetics of Extrinsic Defects in Si and their Role in Nonequilibrium Dopant Diffusion

2000 ◽  
Vol 610 ◽  
Author(s):  
Alain Claverie ◽  
Filadelfo Cristiano ◽  
Benjamin Colombeau ◽  
Nicholas Cowern
Keyword(s):  
Formation Energy ◽  
Ostwald Ripening ◽  
High Dose ◽  
Extended Defects ◽  
Dislocation Loops ◽  
Dynamical Equilibrium ◽  
Defect Interactions ◽  
Small Clusters ◽  
Dose Levels ◽  
Extrinsic Defects

AbstractIn this paper, we discuss the mechanisms by which small clusters evolve through “magic” sizes into {113} defects and then, at sufficiently high dose levels, transform into dislocation loops of two types. This ripening process is mediated by the interchange of free Si(int)s between different extended defects, leading to a decrease of their formation energy. The calculation of the supersaturation of free Si-interstitials in dynamical equilibrium with these defects shows a hierarchy of levels of nonequilibrium diffusion, ranging from supersaturations S of about 106 in the presence of small clusters, through 103 in the presence of {113} defects, to S in the range 100 down to 1 as loops are formed, evolve and finally evaporate. A detailed analysis of defect energetics has been carried out and it is shown that Ostwald ripening is the key concept for understanding and modelling defect interactions during TED of dopants in silicon.

Sign in / Sign up

Export Citation Format

Share Document