scholarly journals Anomalous scaling and refined similarity of an active scalar in a shell model of homogeneous turbulent convection

2008 ◽  
Vol 77 (1) ◽  
Author(s):  
Emily S. C. Ching ◽  
W. C. Cheng
Keyword(s):  
Shell Model ◽  
Turbulent Convection ◽  
Anomalous Scaling ◽  
Active Scalar

scholarly journals Anomalous scaling from controlled closure in a shell model of turbulence

2000 ◽  
Vol 12 (4) ◽  
pp. 803-821 ◽  
Author(s):  
Victor S. L’vov ◽  
Daniela Pierotti ◽  
Anna Pomyalov ◽  
Itamar Procaccia
Keyword(s):  
Shell Model ◽  
Anomalous Scaling

EFFECTS OF A LARGE-SCALE MEAN FLOW IN A SHELL MODEL OF TURBULENT CONVECTION

2007 ◽  
Vol 21 (23n24) ◽  
pp. 4178-4183 ◽  
Author(s):  
EMILY S. C. CHING ◽  
H. GUO
Keyword(s):  
Shell Model ◽  
Large Scale ◽  
Temperature Fluctuations ◽  
Scaling Behavior ◽  
The Other ◽  
Turbulent Convection ◽  
Mean Flow ◽  
Mean Velocity ◽  
Other Hand ◽  
Flow Reversals

The possible effects of a large-scale mean flow, represented as a non-zero mean velocity in the shell of the largest scale, are studied using a shell model of turbulent convection. In the regime where buoyancy is dynamically important, flow reversals are not observed. On the other hand, flow reversals are found in the regime where buoyancy is not dynamically important. In both regimes, the presence of such a large-scale mean flow does not change the scaling behavior of the velocity and temperature fluctuations.

Anomalous scaling in a non-Gaussian random shell model for passive scalars

2007 ◽  
Vol 16 (10) ◽  
pp. 2848-2854 ◽  
Author(s):  
Zhao Ying-Kui ◽  
Chen Shi-Gang ◽  
Wang Guang-Rui
Keyword(s):  
Shell Model ◽  
Anomalous Scaling ◽  
Passive Scalars ◽  
Non Gaussian

scholarly journals Statistically preserved structures and anomalous scaling in turbulent active scalar advection

2002 ◽  
Vol 60 (3) ◽  
pp. 369-375 ◽  
Author(s):  
E. S. C Ching ◽  
Y Cohen ◽  
T Gilbert ◽  
I Procaccia
Keyword(s):  
Anomalous Scaling ◽  
Active Scalar
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