DNS of the Free-Surface Turbulent Flow with Constant Temperature at the Surface

Author(s):  
Y. Yamamoto ◽  
T. Kunugi ◽  
A. Serizawa
2007 ◽  
Author(s):  
Adrian Lungu ◽  
Theodore E. Simos ◽  
George Psihoyios ◽  
Ch. Tsitouras

2003 ◽  
Vol 108 (F1) ◽  
pp. n/a-n/a ◽  
Author(s):  
T. B. Maddux ◽  
J. M. Nelson ◽  
S. R. McLean

2012 ◽  
Vol 19 ◽  
pp. 390-395
Author(s):  
MICHAEL SHATS ◽  
HUA XIA ◽  
DAVID BYRNE

Properties of turbulence, such as the direction of the energy cascade depend on the flow dimensionality. Recent experimental results reveal new physics understanding of flows in thick layers. We show that the flow dimensionality can be characterized by the flow damping and that a comparison of the decay rate with that of a quasi-2D flow can be used as a measure of dimensionality of a turbulent flow in a layer. This dimensionality, however can be strongly affected if large scale coherent vortices are present in the flow. These vortices can imposed twodimensionality and reduce the damping rate. Finally we show that even in thick layers with unperturbed free surface, turbulent flow can be viewed as co-existing 2D top sub-layer and the bulk 3D flow.


1996 ◽  
Vol 51 (14) ◽  
pp. 3557-3573 ◽  
Author(s):  
Michele Ciofalo ◽  
Alberto Brucato ◽  
Franco Grisafi ◽  
Nicola Torraca
Keyword(s):  

1995 ◽  
Vol 18 (6) ◽  
pp. 397-408 ◽  
Author(s):  
D. H. Wolf ◽  
F. P. Incropera ◽  
R. Viskanta

Author(s):  
A. Yalpaniyan ◽  
M. Goodarzi

A TLP is a buoyant platform containing four cylindrical columns. The purpose of this study was to consider the effects of different model solvers in the numerical solution on the flow pattern around the TLP. The flow around the TLP was numerically simulated with inviscid, laminar, and turbulent solvers. Three Froude numbers were run for each case. There was a symmetry plane that allowed simulating just one half of the flow field. Therefore, two columns along the symmetry plane were considered in the results discussion. Beside the generated surface waves there was a pair of vortex behind each column none of them were actually symmetric. The vortex behind the first column significantly affected the flow pattern around the second one in the manner that the vortex behind the first column was larger than the next one. In all cases the outer vortex was larger than the inner one. The obtained results showed that the generated waves of the inviscid flow were smoother than the turbulent flow, and also those of the turbulent flow were smoother than the laminar ones. Compared to the mentioned results, the influence of the flow velocity on the wave heights was more significant.


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