Large scale structure of turbulent natural-convection boundary layer along a vertical flat plate

2002 ◽  
Vol 2002 (0) ◽  
pp. 193-194
Author(s):  
Yasuo HATTORI ◽  
Toshihiro TSUJI ◽  
Yasutaka NAGANO ◽  
Nobukazu TANAKA
Keyword(s):  
Boundary Layer ◽  
Natural Convection ◽  
Flat Plate ◽  
Large Scale ◽  
Large Scale Structure ◽  
Scale Structure ◽  
Convection Boundary Layer ◽  
Turbulent Natural Convection ◽  
Convection Boundary ◽  
Vertical Flat Plate

Experiment on Spatio-Temporal Turbulent Structures of a Natural Convection Boundary Layer

1992 ◽  
Vol 114 (4) ◽  
pp. 901-908 ◽  
Author(s):  
T. Tsuji ◽  
Y. Nagano ◽  
M. Tagawa
Keyword(s):  
Boundary Layer ◽  
Natural Convection ◽  
Large Scale ◽  
Outer Region ◽  
Convection Boundary Layer ◽  
Mean Velocity ◽  
Integral Scale ◽  
Turbulent Natural Convection ◽  
Convection Boundary ◽  
Spatio Temporal

The spatio-temporal structures of a turbulent natural convection boundary layer along a vertical flat plate in air have been examined using a thermocouple rake and a pair of hot-wire/cold-wire arrangements. The instantaneous temperature profile clearly indicates the evolution of a large-scale motion originating in the outer region of the boundary layer. However, the space-time correlation measurements did not suggest the existence of any quasi-coherent structures such as low-speed streaks and bursts. The convection (or advection) velocity and characteristic length scales of turbulence were also investigated. The convection velocity exceeds the local mean velocity in the near-wall and outermost regions. The microscale of the thermal field shows a strongly anisotropic structure, and the integral scale indicates a large-scale structure normal to the wall.

NATURAL CONVECTION BOUNDARY LAYER FLOW PAST A FLAT PLATE OF FINITE DIMENSIONS

2012 ◽  
Vol 15 (6) ◽  
pp. 585-593
Author(s):  
M. Jana ◽  
S. Das ◽  
S. L. Maji ◽  
Rabindra N. Jana ◽  
S. K. Ghosh
Keyword(s):  
Boundary Layer ◽  
Natural Convection ◽  
Flat Plate ◽  
Boundary Layer Flow ◽  
Convection Boundary Layer ◽  
Flow Past ◽  
Convection Boundary ◽  
Layer Flow
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