Spectra and Statistics of Velocity and Temperature Fluctuations in Turbulent Convection

1999 ◽  
Vol 83 (23) ◽  
pp. 4760-4763 ◽  
Author(s):  
Shay Ashkenazi ◽  
Victor Steinberg
Keyword(s):  
Temperature Fluctuations ◽  
Turbulent Convection

scholarly journals Transition on local temperature fluctuations in highly turbulent convection

2009 ◽  
Vol 87 (4) ◽  
pp. 44006 ◽  
Author(s):  
F. Gauthier ◽  
J. Salort ◽  
O. Bourgeois ◽  
J.-L. Garden ◽  
R. du Puits ◽  
...  
Keyword(s):  
Temperature Fluctuations ◽  
Turbulent Convection ◽  
Local Temperature

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.

scholarly journals Simulations of Boiling Systems Using a Lattice Boltzmann Method

2013 ◽  
Vol 13 (3) ◽  
pp. 696-705 ◽  
Author(s):  
L. Biferale ◽  
P. Perlekar ◽  
M. Sbragaglia ◽  
F. Toschi
Keyword(s):  
Numerical Simulations ◽  
Lattice Boltzmann Method ◽  
Latent Heat ◽  
Lattice Boltzmann ◽  
Temperature Fluctuations ◽  
Convective Cell ◽  
Turbulent Convection ◽  
Multi Phase ◽  
Boltzmann Method ◽  
Pseudo Potential

AbstractWe report about a numerical algorithm based on the lattice Boltzmann method and its applications for simulations of turbulent convection in multi-phase flows. We discuss the issue of ’latent heat’ definition using a thermodynamically consistent pseudo-potential on the lattice. We present results of numerical simulations in 3D with and without boiling, showing the distribution of pressure, density and temperature fluctuations inside a convective cell.

scholarly journals “Clusterization” and intermittency of temperature fluctuations in turbulent convection

2004 ◽  
Vol 69 (5) ◽  
Author(s):  
A. Bershadskii ◽  
J. J. Niemela ◽  
A. Praskovsky ◽  
K. R. Sreenivasan
Keyword(s):  
Temperature Fluctuations ◽  
Turbulent Convection

Wall Laws for Natural Turbulent Convection

1998 ◽  
Vol 29 (4-5) ◽  
pp. 235-242
Author(s):  
B. P. Golovnya
Keyword(s):  
Turbulent Convection
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