Analytical solution of coupled laminar heat-mass transfer in a tube with uniform heat flux

1992 ◽  
Vol 1 (3) ◽  
pp. 184-188 ◽  
Author(s):  
Yuwen Zhang ◽  
Zhongqi Chen
Keyword(s):  
Mass Transfer ◽  
Heat Flux ◽  
Analytical Solution ◽  
Heat Mass Transfer ◽  
Uniform Heat Flux ◽  
Uniform Heat

Thermal Resistance for Random Contacts on the Surface of a Semi-Infinite Heat Flux Tube

2003 ◽  
Vol 125 (3) ◽  
pp. 532-535 ◽  
Author(s):  
N. Laraqi
Keyword(s):  
Heat Flux ◽  
Analytical Solution ◽  
Thermal Resistance ◽  
Flux Tube ◽  
Uniform Heat Flux ◽  
Square Prism ◽  
Constriction Resistance ◽  
Uniform Heat ◽  
Contact Size

Analytical solution is developed to calculate the thermal constriction resistance for contacts randomly distributed on the surface of a laterally insulated semi-infinite square prism. The contacts are modeled by circular spots with different radii and uniform heat flux. We analyze the evolution of the thermal constriction resistance as a function of the number of contacts, the relative contact size, and the dispersion of radii of spots. We show that the thermal constriction resistance for random contacts is a few tens of percents greater than that of the regular contacts.

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