HEAT TRANSFER IN CYLINDRICAL PIPES WITH TURBULENT FLOW AND ARBITRARY WALL FLUX AND TEMPERATURE DISTRIBUTIONS

1965 ◽  
Author(s):  
John W. Goresh
Keyword(s):  
Heat Transfer ◽  
Turbulent Flow ◽  
Temperature Distributions

An Analysis of Heat Transfer for Fully Developed Turbulent Flow in Concentric Annuli

1968 ◽  
Vol 90 (1) ◽  
pp. 43-50 ◽  
Author(s):  
N. W. Wilson ◽  
J. O. Medwell
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Turbulent Flow ◽  
Velocity Distribution ◽  
Maximum Velocity ◽  
Dimensionless Form ◽  
Temperature Distributions ◽  
Wide Range ◽  
Fully Developed Turbulent Flow ◽  
Heat And Momentum Transfer

The heat and momentum transfer analogy is employed to analyze the heat transfer phenomena for turbulent flow in concentric annuli. A modification of the velocity distribution due to Van Driest is assumed and equations in dimensionless form are developed to predict: (a) the position of maximum velocity in the annulus; (b) the friction factor-Reynolds number relationship, and (c) temperature distributions and heat transfer relations over a wide range of Reynolds number and Prandtl modulus.

scholarly journals Modelling of heat transfer in a packed bed column

2011 ◽  
Vol 13 (4) ◽  
pp. 34-41 ◽  
Author(s):  
Paulina Pianko-Oprych
Keyword(s):  
Heat Transfer ◽  
Turbulent Flow ◽  
Mesh Size ◽  
Axial Direction ◽  
Packed Bed ◽  
Cfd Modelling ◽  
Packed Bed Column ◽  
Wall Functions ◽  
Temperature Distributions ◽  
Porous Media Model

Modelling of heat transfer in a packed bed column The CFD modelling of heat transfer in the packed bed column in the laminar and turbulent flow regimes has been presented. Three numerical grids with different densities were generated for the packed bed column. The modelling was performed with the use of the Porous Media Model for treating the flow inside a porous structure. The standard k-ε model along with the logarithmic wall functions for the turbulent flow range was used. The influence of the mesh size on the accuracy of the fluid flow was studied. Both radial and axial direction temperature distributions have been compared with the experimental data1 and the values calculated from a 2DADPF model. A good agreement between the experimental and the predicted values of the pressure drop, temperature distributions and heat transfer coefficient was obtained.

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