THE INFLUENCE OF TEMPERATURE DEPENDENCE OF THERMOPHYSICAL PROPERTIES ON THE PREDICTION ACCURACY IN LAMINAR MIXED CONVECTION HEAT TRANSFER IN VERTICAL TUBES

1978 ◽  
Author(s):  
O. Szpiro ◽  
Michael W. Collins ◽  
P. H. G. Allen
Keyword(s):  
Heat Transfer ◽  
Mixed Convection ◽  
Thermophysical Properties ◽  
Prediction Accuracy ◽  
Convection Heat Transfer ◽  
Convection Heat ◽  
Influence Of Temperature ◽  
Laminar Mixed Convection ◽  
Mixed Convection Heat Transfer ◽  
Vertical Tubes

Numerical Investigation of Mixed Convection Heat Transfer in Steady Flow Past a Row of Three Square Cylinders

2018 ◽  
Vol 389 ◽  
pp. 164-175
Author(s):  
Houssem Laidoudi ◽  
Bilal Blissag ◽  
Mohamed Bouzit
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Mixed Convection ◽  
Convection Heat Transfer ◽  
Convection Heat ◽  
Thermal Buoyancy ◽  
Flow And Heat Transfer ◽  
Square Cylinders ◽  
Laminar Mixed Convection ◽  
Mixed Convection Heat Transfer

In this paper, the numerical simulations of laminar mixed convection heat transfer from row of three isothermal square cylinders placed in side-by-side arrangement are carried out to understand the behavior of fluid flow around those cylinders under gradual effect of thermal buoyancy and its effect on the evacuation of heat energy. The numerical results are presented and discussed for the range of these conditions: Re = 10 to 40, Ri = 0 to 2 at fixed value of Prandtl number of Pr = 1 and at fixed geometrical configuration. In order to analyze the effect of thermal buoyancy on fluid flow and heat transfer characteristics the main results are illustrated in terms of streamline and isotherm contours. The total drag coefficient as well as average Nusselt number of each cylinder are also computed to determine exactly the effect of buoyancy strength on hydrodynamic force and heat transfer evacuation of each cylinder.

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